The Open University

Professional biography

David is a Senior Lecturer in Physical Sciences at the Open University and carries out his research in the Centre for Electronic Imaging (CEI) which is a collaboration between the Open University and Teledyne e2v. Teledyne e2v are a world-leading technology company that offer space imaging solutions, including space-qualified imaging sensors, arrays and sub-systems for space science, ground astronomy and Earth observation, helping to solve the mysteries of the Universe and understand climate change on Earth.

David received an Honours Degree in Physics (MPhys) from Oxford University, UK, in 2006. Following his Masters, he completed his PhD on the impact of detection physics in X-ray CCD imagers and spectrometers from the Open University in 2010 in an industry-sponsored studentship with Teledyne e2v. Appointed as an e2v Research Fellow in 2010 and Lecturer in Physical Sciences in 2017, he has continued his research with the Centre for Electronic Imaging into the space radiation environment and its impact on space imaging and spectroscopy systems such as CCDs. Specifically, David has worked towards the ESA Gaia, Euclid and Athena missions, the ESA and Chinese Acadamy of Science SMILE mission, NASA's WFIRST mission, instrument background and graded-Z shielding, p-channel device technology and the fundamental physics of radiation damage in silicon and how this impacts the lattice. His research also focusses on the use of device-based simulations, including the modelling of CCDs and novel imaging techniques, alongside the simulation of instrument background, from XMM-Newton to ATHENA. David has developed collaborations with the Swiss Light Source at the Paul Scherrer Institute (Switzerland) and the Diamond Light Source (UK) towards the development of applications for the Electron-Multiplying CCD in synchrotron-based research and medical imaging, developing other applications for technology and techniques originally designed for space science.

David is a member of the STFC Education, Training and Careers Committee, as well as the UKRI Future Leaders Fellowships sifting and interview panels.

A list of publications in print can be found on the Publications tab, which provides links to downloadable copies of all papers. Further information and bibliometrics are available through David's Google Scholar Profile.

If you are interested in any of David's research, publications or projects, or if you would like to collaborate in the future, please contact him at the email address on the left.

Research interests

Instrumentation development and study of the underlying physical processes for detectors in space science and synchrotron research:

Radiation damage in silicon-based devices: the causes, the consequences and methods for removing and reducing the impact (experiment and modelling).

Inter-disciplinary approaches to advancing understanding of traps and defects, leading inter-disciplinary research into first-principle simulations of, and methods to reduce, defects in silicon.

Instrument background in silicon devices for space-science missions (simulation and measurement).

Semiconductor device technology (n-channel and p-channel CCD, EM-CCD, SCD and CMOS).

Soft X-ray detectors, detection techniques and data analysis algorithms.

Hard X-ray detectors, detection using scintillators or direct detection and novel data analysis methods.

X-ray detectors and detection techniques for synchrotron research (RIXS, X-ray crystallography).

Novel imaging detectors and techniques, scale-space techniques for X-ray data.

Teaching interests

David has developed his experience in teaching at the Open University across a variety of areas. He has taken on the role as a "topic specialist" in a range of areas of the Open University "Practical Science" course in Physics and Astronomy, from NMR to Probing the Electron. He has also written course materials for the final project for students in the course, revolving around mathematical modelling through teamwork in distance learning.

David also worked as part of the team developing the OU's new Space Science Masters course, combining his research experience working on Gaia and teaching experience on the Practical Science and Research Skills Masters courses, providing students with a real-life research problem to solve and enabling them to contribute to the analysis of Gaia data alerts.

Alongside his work on the Space Science Masters, David has also been heavily involved in the presentation and production of the level 3 course on Electromagnetism, including the development of the next generation of the course.

Impact and engagement

As a member of the Centre for Electronic Imaging (CEI), David often collaborates with Teledyne e2v. This collaboration between academia and industry ensures that the research undertaken has real and tangible impact to UK industry. The collaboration agreements in place between Teledyne e2v and the Open University enable a much more in-depth study of the device physics than would otherwise be possible, bringing great benefits to space science and synchrotron applications.

David ran a very successful outreach project on the UKube-1 mission under funding from STFC's Science in Society scheme, reaching over 1,200 local school pupils in the first year of operation. The equipment and materials developed in this project are still being used in outreach activities in local schools, colleges and amateur interest groups, as well as for external visitors to the CEI laboratories.

External collaborations

David is working across a variety of projects in many collaborations in academia across the UK and Europe (e.g. MSSL, Durham, IoA Cambridge, ONERA, PSI), with industry (e.g. e2v, XCAM) and with the space agencies (e.g. ESA, UKSA). Alongside these European partnerships, David is also working with collaborators in the US such as those at the Jet Propulsion Laboratory.

Research groups

Name	Type	Parent Unit
e2v Centre for Electronic Imaging	Centre	Faculty of Science

Externally funded projects

Euclid UK Science Ground Segment Bridging Grant Phase III

Role	Start date	End date	Funding source
Co-investigator	01 Apr 2022	31 Mar 2024	UKSA UK Space Agency
Continuation of Euclid work to deliver Trap Pumping analysis data products for the Euclid Science Ground Segment.

Euclid SGS 21-22

Role	Start date	End date	Funding source
Co-investigator	01 Oct 2021	31 Mar 2022	UKSA UK Space Agency
Supporting the radiation damage correction efforts for the Euclid VIS Instrument by delivering Trap Pumping analysis data products for the Euclid Science Ground Segment.

A universal model for detector simulations for space applications

Role	Start date	End date	Funding source
Co-investigator	01 Feb 2021	31 Jan 2025	ESA (European Space Agency)
ESA, in partnership with ESO, is developing a general detector simulation framework called Pyxel, to be able to share a single well-understood framework among many projects and missions. Due to the advanced research into detector physics and simulation being done at the CEI, ESA has agreed to co-fund a PhD studentship to do more research of the physics and fundamental understanding of the detectors for a variety of applications and using this new knowledge to develop exciting new capabilities for Pyxel linking it with the CEI involvement in space missions such as Euclid, SMILE, JUICE, and Gaia.

ESA NPI Gaia radiation damage

Role	Start date	End date	Funding source
Co-investigator	01 Sep 2020	31 Aug 2023	ESA (European Space Agency)
European Space Agency (ESA) Network Partnering Initiative (NPI) funding to support PhD student Saad Ahmed, who is working on radiation damage of the Gaia focal plane detectors. This funding will allow Saad to work more closely with ESA using in-orbit calibration data from the Gaia space telescope, and to get access to test equipment located at the ESA Research and Technology Centre (ESTEC) in Holland.

Theseus CMOS Sensor Development – ESA TDE Activity

Role	Start date	End date	Funding source
Co-investigator	01 Nov 2019	31 Mar 2023	ESA (European Space Agency)
The project aims to develop a new type of X-ray sensor based on CMOS image sensor technology, initially for ESA’s M5 mission candidate Theseus, but with butch broader ranging impact across science and synchrotron science.

Radiation damage in the Gaia focal plane: a study of in-orbit radiation damage and how this can be more accurately simulated on the ground

Role	Start date	End date	Funding source
Lead	01 Oct 2019	31 Mar 2023	STFC Science & Technology Facilities Council
Launched in December 2013, the ESA Gaia mission has the ambitious aim of mapping a staggering 1 billion astronomical objects over its 5 year (plus 1-4 year extension) lifetime. The Gaia focal plane is formed of 106 custom-designed e2v CCDs. The detectors are subject to radiation damage whilst in orbit and the results so far suggest that this damage is much lower than that predicted pre-launch. The contributing factors to this lower level of damage are unconfirmed, although there are several candidates for this variation. One is the increased optical background from light scattering from fibres and ice on the end of the baffle. Another is the impact of the devices being irradiated in-orbit more than 100 K lower in temperature than in the pre-launch test campaigns. Current research at the OU suggests that both factors have a major impact on the level of damage received. Simulations developed for the ESA Euclid mission using similar detectors, albeit of a different design, are showing great promise in aiding an understanding of the physics behind the processes of radiation damage in these detectors. Using available Gaia data, alongside developing the OU simulations to the Gaia detectors, the student will be able to get real information on traps developing in the CCDs in-orbit, feeding this information back into other mission research (e.g. Euclid, SMILE, WFIRST etc).

SMILE 2019-2022

Role	Start date	End date	Funding source
Co-investigator	01 Apr 2019	31 Mar 2022	UKSA UK Space Agency
The Open University is part of the instrument consortium developing the Soft X-ray Imager for the SMILE spacecraft. In this role, researchers at The Open University have informed the development of the bespoke detectors in order to optimise them for soft X-ray performance, performed initial development of facilities and equipment to characterise the devices and performed simulations of the environment that the SXI instrument will experience in order to inform the instrument design. This funding will allow this research to continue by: - evolving the radiation environment simulations as the instrument, spacecraft and mission design matures, particularly exploring observation strategies to minimise the damage to the CCD focal plane; - characterising and optimising the performance of the newly manufactured flight-like detectors, particularly following expected end-of-life radiation levels; - performing calibration activities on the flight detectors, using synchrotron X-ray and lab-based measurements; - developing and verifying the on-board algorithm for identification of soft X-ray events within the image data returned from the detectors.

Correction of radiation-induced charge transfer inefficiency in CCDs for the SMILE mission

Role	Start date	End date	Funding source
Lead	01 Oct 2017	30 Sep 2021	STFC Science & Technology Facilities Council
STFC CASE PhD Studentship to support research for the ESA and Chinese Academy of Sciences SMILE mission within the CEI through research into CTI correction techniques. The project will include studies of experimental and simulation techniques, working alongside the local project team.

Euclid 2017-21

Role	Start date	End date	Funding source
Co-investigator	01 Apr 2017	31 Mar 2021	UKSA UK Space Agency
Euclid is an ESA M-class mission with a mission to map the dark matter in the universe by measuring the effect of weak gravitation lensing on distant galaxies. This grant enables the CEI to continue its work in characterising and modelling the performance of the CCD detectors for the VIS instrument when exposed to the space radiation environment the instrument will experience. This will help ensure the best performance and science data return from the instrument.

Mitigation strategies against radiation-induced instrument background for space astronomy missions

Role	Start date	End date	Funding source
Lead	01 Feb 2017	31 Jan 2021	STFC Science & Technology Facilities Council
Instrument background affects all space astronomy missions. High energy particles and gammas can be detected by the cameras on board and some may be indistinguishable from the photons that the mission aims to measure. The particles that hit the detector, and many more that don't, will pass through the material surrounding the detectors and can generate secondaries that themselves may be detected, from X-rays to soft electrons. It is the detection of these primary and secondary events that we refer to as instrument background, or the "quiescent non-X-ray background". The overall sensitivity of the cameras can take a huge hit from the presence of instrument background, with XMM-Newton being a prime example. The instrument background observed in orbit was many times higher than that which had been predicted pre-launch. Studies in the CEI back in 2006, started under the STFC CASE studentship of David Hall, led to the understanding and first explanation of this mysterious increase in background. Our simulations showed that soft electrons that were knocked from atoms in the innermost few microns of the shielding could be detected and appeared as X-ray-like events. Based on the previous research mentioned above, the Open University is leading the development of instrument background mitigation for the Athena Wide Field Imager (WFI) through study of graded-Z shielding. Simulations using Geant4 will be developed alongside experimental verification of the models. These simulations and the experimental campaign will investigate the use of graded-Z shielding to reduce the background progressively with layers of lower and lower Z moving in towards the detector. The aim in this studentship will be to contribute towards the simulation and experimental testing of the graded-Z shielding through phase A/B1 of the Athena studies; perfectly timed to coincide with the studentship of 2016-2019 such that the student will be able to feed into the mission development at this most appropriate stage. However, despite the benefits that are expected from a new and novel graded shielding approach, some particles and photons will still make it through to the detector. As the total sensitivity of the camera system will depend on a multitude of different factors, including both the background and the quantum efficiency (QE) of the device, novel methods to improve the sensitivity at the expense of the detector QE have been discussed. The student will look into the use of layers directly deposited onto the detector to absorb the knock-on electrons, reducing the background, but consequently reducing the QE, with the aim of improving the overall sensitivity of the detector system. These developments will not only benefit the DEPFET detectors of the Athena mission, but they will have universal applications across all detectors used in space applications. Whilst the DEPFET sensors for Athena are not developed by e2v technologies, the company has a great interest in the environment in which their detectors will be placed for many other missions such as Euclid and Plato. The understanding of the environment developed for Athena will be directly relatable to these other missions and other detector technologies. Even more so, the use of thin layers deposited on the detectors to improve overall sensitivity is of particular interest to e2v, and as such they would provide detectors in kind for testing of the shielding and new layers proposed, applying the layers to the devices in house where possible and aiding in the measurement of the QE of the layers.

SMILE Q1 2017

Role	Start date	End date	Funding source
Co-investigator	01 Jan 2017	31 Mar 2017	UKSA UK Space Agency
Continuation of SMILE funding - Jan to Mar 2017

WFIRST Phase III - Serial Modelling

Role	Start date	End date	Funding source
Lead	14 Nov 2016	16 Dec 2016	JPL California Institute of Technology Jet Propulsion Laboratory
The project is a continuation of a 3-yr research programme with JPL examining the feasibility of EM-CCD technology within the Chronograph Instrument (CGI) for NASA’s WFIRST space observatory. Specifically the project is examining the effects on charge transfer within the EM-CCDs with different channel widths within the serial register pixels.

Cryogenic irradiations: a realistic study of the impact of radiation on detectors in space

Role	Start date	End date	Funding source
Co-investigator	01 Oct 2016	30 Sep 2020	STFC Science & Technology Facilities Council
Charge-Coupled Devices (CCDs) have long been the detectors of choice for space astronomy missions. When placed in orbit, the devices can experience a harsh radiation environment. The radiation incident on the detector will act to damage the silicon lattice, creating defects that lead to the formation of "traps". These traps capture signal that is being read out of the device, leading to smearing and signal loss. Before any mission is launched, it is vital that the impact of radiation is studied in detail such that appropriate shielding is used along with the development of novel readout techniques and correction algorithms to mitigate the damage that remains. Currently, standard practice dictates that radiation testing of devices is carried out at room temperature, despite the fact that the detectors will be kept cold during operation in orbit. The traps that are created after irradiation will migrate through the device until they reach a stable state, but the stability of any particular defect structure is strongly dependent on temperature; the traps present at room temperature may be dramatically different to those present when a device is irradiated cold and kept cold. Literature on the so called "cryogenic irradiation" is sparse, but there are reports of a factor of 2-3 difference between the impact of radiation at room temperature compared to the more realistic cryogenic irradiation. ESA's Euclid mission, aiming to map dark matter and energy, is dependent on a complete and thorough understanding of the impact of radiation on the detectors to allow for correction against radiation to reduce the smearing by up to 300 times. Hubble is able to correct by approximately a factor of 30, one order of magnitude less than that required for Euclid's high precision measurements. Cryogenic irradiations present many challenges as the devices must be kept cold (and therefore under vacuum) at all times, whilst irradiating and for a period of weeks or months after the irradiation. Equipment and techniques have been developed within the CEI over the past 12 months that have allowed our first cryogenic irradiations to take place. Early results demonstrate that there is a dramatic difference between the cryogenic results and those performed at room temperature, including the presence of very different trap species. This studentship proposal will involve a succession of cryogenic irradiations of n-channel CCDs, using newly developed apparatus, to feed directly into the CEI's current Euclid research. Not only will this feed into Euclid, but the fundamental understanding developed will feed into other future missions such as Plato, JUICE and WFIRST to name but a few, and also allowing comparisons to be made to current research into the cryogenic irradiation of p-channel CCDs. Devices will be provided in-kind by the industrial partner, e2v technologies, alongside in-kind time offered from e2v employees. The timescale for this studentship (2016-2019) will allow the student to feed into the Euclid programme at this most appropriate time.

SMILE 2016

Role	Start date	End date	Funding source
Co-investigator	01 Apr 2016	30 Sep 2016	UKSA UK Space Agency
Bridging funds for SMILE

Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) SXI study

Role	Start date	End date	Funding source
Co-investigator	01 Jul 2015	31 Mar 2016	UKSA UK Space Agency
Study on Focal plane and Front End Electronics (FEE) optimisation & Lifetime/performance Assessment for SXI instrument on SMILE. SMILE is a joint CAS-ESA mission. 9 month initial study phase.

Publications

Journal articles

SMILE Soft X-ray Imager (SXI) CCD370 proton irradiation results (2024-09-01)
Parsons, Steven; Hall, David; Hetherington, Oliver; Buggey, Thomas; Arnold, Timothy; Hubbard, Michael and Holland, Andrew
Proceedings - SPIE the International Society for Optical Engineering, 13103, Article 131030E

Soft X-ray performance of an optimised charge-coupled device for astronomy (2024-09)
Buggey, T. W.; Randall, G.; Parsons, S.; Jones, L. S.; DeCaire, A. L.; Arnold, T.; Hetherington, O.; Holland, A. D. and Hall, D. J.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1066, Article 169636

Investigation of an irradiated CCD device: Building and testing a Charge Transfer Inefficiency correction pipeline using the Pyxel framework (2024-07-29)
Kelman, Bradley; Prod’homme, Thibaut; Skottfelt, Jesper; Hall, David; Lemmel, Frederic; Seibert, Constanze; Verhoeve, Peter and Hubbard, Michael
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1068, Article 169678

Non-ionizing radiation effects in a soft X-ray CMOS image sensor (2024-07)
Townsend-Rose, Charles; Buggey, Thomas; Ivory, James; Dazzazi, Imane; Stefanov, Konstantin and Hall, David
Journal of Astronomical Telescopes, Instruments, and Systems, 10, Article 36002(3)

Impact of particle passage and focusing from micro-pore optics for radiation damage estimates (2024)
Hubbard, Michael; Buggey, Thomas; Hall, David; Feldman, Charly; Keelan, Jonathan; Hetherington, Oliver; Parsons, Steven; Arnold, Timothy and Holland, Andrew
Journal of Astronomical Telescopes, Instruments, and Systems, 10, Article 34003(3)

SMILE soft X-ray Imager flight model CCD370 pre-flight device characterisation (2023-08-14)
Parsons, S.; Hall, D. J.; Hetherington, O.; Buggey, T. W.; Arnold, T.; Hubbard, M. W. J. and Holland, A.
Earth and Planetary Physics, 8(1) (pp. 1-14)

Impact of impurities in shielding material on simulations of instrument background in space (2023-07-26)
Hubbard, Michael W. J.; Hall, David; Hetherington, Oliver; Arnold, Timothy and Holland, Andrew
Journal of Astronomical Telescopes, Instruments, and Systems, 9, Article 34004(3)

Effectiveness of a dual solenoid magnetic shield at reducing x-ray-like background in silicon-based x-ray detectors (2023-06-27)
Davis, Christopher S.W. and Hall, David
Journal of Astronomical Telescopes, Instruments, and Systems, 9, Article 24008(2)

Flight photon counting electron multiplying charge coupled device development for the Roman Space Telescope coronagraph instrument (2023-03-19)
Morrissey, Patrick; Harding, Leon K.; Bush, Nathan L.; Bottom, Michael; Nemati, Bijan; Daniel, Andrew; Jun, Bongim; Martinez-Sierra, Luz Maria; Desai, Niyati; Barry, Dave; Davis, Rhonda-Topaz; Demers, Richard T.; Hall, David J.; Holland, Andrew; Turner, Pete and Shortt, Brian
Journal of Astronomical Telescopes, Instruments, and Systems, 9, Article 16003(1)

The CCD instrument background of the SMILE SXI (2023)
Hubbard, M.W. J.; Hetherington, O.; Hall, D. J.; Buggey, T. W.; Parsons, S.; Arnold, T.; Holland, A.; Pagani, C. and Sembay, S.
Earth and Planetary Physics, 8(1) (pp. 1-10)

The Soft X-ray Imager (SXI) on the SMILE Mission (2023)
Sembay, S.; Alme, A.L.; Agnolon, D.; Arnold, T.; Beardmore, A.; Belén Balado Margeli, A.; Bicknell, C.; Bouldin, C.; Branduardi-Raymont, G.; Breuer, J.P.; Buggey, T.; Butcher, G.; Canchal, R.; Carter, J.A.; Crawford, T.; Cheney, A.; Collado-Vega, Y.; Connor, H.; Crawford, T.; Eaton, N.; Feldman, C.; Forsyth, C.; Frantzen, T.; Galgóczi, G.; Garcia, J.; Genov, G.Y.; Gordillo, C.; Gröbelbauer, H-P.; Guedel, M.; Guo, Y.; Hailey, M.; Hall, D.; Hampson, R.; Hasiba, J.; Hetherington, O.; Holland, A.; Hsieh, S-Y; Hubbard, M.; Jeszenszky, H.; Jones, M.; Kennedy, T.; Koch-Mehrin, K.; Kögl, S.; Krucker, S.; Kuntz, K.D.; Lakin1, C.; Laky, G.; Lylund, O.; Martindale, A.; Miguel Mas Hesse, J.; Nakamura, R.; Oksavik, K.; Østgaard, N.; Ottacher, H.; Ottensamer, R.; Pagani, C.; Parsons, S.; Patel, P.; Pearson, J.; Peikert, G.; Porter, F.S.; Pouliantis, T.; Randall, G.; Qureshi, B.H; Raab, W.; Randall, G.; Read, A.M.; Roque, N.M.M.; Rostad, M.E.; Runciman, C.; Sachdev, S.; Samsonov, A.; Soman, M.; Sibeck, D.; Smit, S.; Søndergaard, J.; Speight, R.; Stavland, S.; Steller, M.; Sun, TianRan; Thornhill, J.; Thomas, W.; Ullaland, K.; Walsh, B.; Walton, D.; Wang, C. and Yang, S.
Earth and Planetary Physics, 8(1) (pp. 1-10)

Modelling the impact of radiation damage effects in in-flight and on-ground irradiated Gaia CCDs (2022-08)
Ahmed, S.; Hall, D. J.; Skottfelt, J. M.; Dryer, B.; Holland, A.; Crowley, C. and Hernandez, J.
Journal of Instrumentation, 17, Article C08010(8)

Mitigating the effects of particle background on the Athena Wide Field Imager (2022-02)
Miller, Eric D.; Grant, Catherine E.; Bautz, Marshall W.; Molendi, Silvano; Kraft, Ralph; Nulsen, Paul; Bulbul, Esra; Allen, Steven; Burrows, David N.; Eraerds, Tanja; Fioretti, Valentina; Gastaldello, Fabio; Hall, David; Hubbard, Michael W. J.; Keelan, Jonathan; Meidinger, Norbert; Perinati, Emanuele; Rau, Arne and Wilkins, Dan
Journal of Astronomical Telescopes, Instruments, and Systems, 8, Article 18001(1)

Understanding the evolution of radiation damage on the Gaia CCDs after 72 months at L2 (2022)
Ahmed, Saad; Hall, David; Crowley, Cian; Skottfelt, Jesper; Dryer, Benjamin; Seabroke, George; Hernandez, Jose and Holland, Andrew
Journal of Astronomical Telescopes, Instruments, and Systems, 8, Article 16003(1)

Developing the active trap model for charge-coupled device charge transfer optimization in large-scale space missions (2022)
Buggey, Thomas; Soman, Matthew; Hall, David; Bush, Nathan; Parsons, Steve; Hetherington, Oliver and Holland, Andrew
Journal of Astronomical Telescopes, Instruments, and Systems, 8(2)

Improving radiation hardness in space-based Charge-Coupled Devices: an experimental validation of a new pre-fabrication modelling technique (2022)
Parsons, Steven; Hall, David; Buggey, Thomas; Holland, Andrew and Verhoeve, Peter
Journal of Instrumentation, 17, Article P10025

Effects of temperature anneal cycling on a cryogenically proton irradiated CCD (2021-11)
Parsons, S.; Buggey, T.; Holland, A.; Sembay, S.; Randall, G.; Hetherington, O.; Yeoman, D.; Hall, D.; Verhoeve, P. and Soman, M.
Journal of Instrumentation, 16, Article P11005(11)

Proton-induced traps in electron multiplying charge-coupled devices (2021-03-09)
Bush, Nathan; Hall, David and Holland, Andrew
Journal of Astronomical Telescopes, Instruments, and Systems, 7, Article 16003(1)

Measurement and optimization of clock-induced charge in electron multiplying charge-coupled devices (2021)
Bush, Nathan; Heymes, Julian; Hall, David; Holland, Andrew and Jordan, Douglas
Journal of Astronomical Telescopes, Instruments, and Systems, 7, Article 16002(1)

Enhanced simulations on the Athena/Wide Field Imager instrumental background (2021)
Eraerds, Tanja; Antonelli, Valeria; Davis, Chris; Hall, David J.; Hetherington, Oliver; Holland, Andrew; Hubbard, Michael; Meidinger, Norbert; Miller, Eric D.; Molendi, Silvano; Perinati, Emanuele; Pietschner, Daniel and Rau, Arne
Journal of Astronomical Telescopes, Instruments, and Systems, 7, Article 34001(3)

Faint objects in motion: the new frontier of high precision astrometry (2021)
Malbet, Fabien; Boehm, Céline; Krone-Martins, Alberto; Amorim, Antonio; Anglada-Escudé, Guillem; Brandeker, Alexis; Courbin, Frédéric; Enßlin, Torsten; Falcão, Antonio; Freese, Katherine; Holl, Berry; Labadie, Lucas; Léger, Alain; Mamon, Gary A.; McArthur, Barbara; Mora, Alcione; Shao, Mike; Sozzetti, Alessandro; Spolyar, Douglas; Villaver, Eva; Abbas, Ummi; Albertus, Conrado; Alves, João; Barnes, Rory; Bonomo, Aldo Stefano; Bouy, Hervé; Brown, Warren R.; Cardoso, Vitor; Castellani, Marco; Chemin, Laurent; Clark, Hamish; Correia, Alexandre C. M.; Crosta, Mariateresa; Crouzier, Antoine; Damasso, Mario; Darling, Jeremy; Davies, Melvyn B.; Diaferio, Antonaldo; Fortin, Morgane; Fridlund, Malcolm; Gai, Mario; Garcia, Paulo; Gnedin, Oleg; Goobar, Ariel; Gordo, Paulo; Goullioud, Renaud; Hall, David; Hambly, Nigel; Harrison, Diana; Hobbs, David; Holland, Andrew; Høg, Erik; Jordi, Carme; Klioner, Sergei; Lançon, Ariane; Laskar, Jacques; Lattanzi, Mario; Le Poncin-Lafitte, Christophe; Luri, Xavier; Michalik, Daniel; de Almeida, André Moitinho; Mourão, Ana; Moustakas, Leonidas; Murray, Neil J.; Muterspaugh, Matthew; Oertel, Micaela; Ostorero, Luisa; Portell, Jordi; Prost, Jean-Pierre; Quirrenbach, Andreas; Schneider, Jean; Scott, Pat; Siebert, Arnaud; Silva, Antonio da; Silva, Manuel; Thébault, Philippe; Tomsick, John; Traub, Wesley; de Val-Borro, Miguel; Valluri, Monica; Walton, Nicholas A.; Watkins, Laura L.; White, Glenn; Wyrzykowski, Lukasz; Wyse, Rosemary and Yamada, Yoshiyuki
Experimental Astronomy, 51 (pp. 845-886)

Characterization of the Particle-induced Background of XMM-Newton EPIC-pn: Short- and Long-term Variability (2020-03)
Bulbul, Esra; Kraft, Ralph; Nulsen, Paul; Freyberg, Michael; Miller, Eric D.; Grant, Catherine; Bautz, Mark W.; Burrows, David N.; Allen, Steven; Eraerds, Tanja; Fioretti, Valentina; Gastaldello, Fabio; Ghirardini, Vittorio; Hall, David; Meidinger, Norbert; Molendi, Silvano; Rau, Arne; Wilkins, Dan and Wilms, Joern
The Astrophysical Journal, 891, Article 1(13)

Importance of charge capture in interphase regions during readout of charge-coupled devices (2018-03-28)
Skottfelt, Jesper; Hall, David J.; Dryer, Ben; Bush, Nathan; Gow, Jason P. D. and Holland, Andrew D.
Journal of Astronomical Telescopes, Instruments, and Systems, 4, Article 18005(1)

Development of in-situ trap characterisation techniques for EMCCDs (2018-02-19)
Bush, N.; Hall, D.; Holland, A.; Burgon, R.; Jordan, D.; Morrisey, P.; Demers, R.; Harding, L. K.; Nemati, B.; Effinger, R. and Bottom, M.
Journal of Instrumentation, 13, Article C02025(2)

Soft X-ray radiation damage in EM-CCDs used for Resonant Inelastic X-ray Scattering (2018-02)
Gopinath, D.; Soman, M.; Holland, A.; Keelan, J.; Hall, D.; Holland, K. and Colebrook, D.
Journal of Instrumentation, 13, Article C02027(2)

The SMILE Soft X-ray Imager (SXI) CCD design and development (2018-01-19)
Soman, M.R.; Hall, D.J.; Holland, A.D.; Burgon, R.; Buggey, T.; Skottfelt, J.; Sembay, S.; Drumm, P.; Thornhill, J.; Read, A.; Sykes, J.; Walton, D.; Branduardi-Raymont, G.; Kennedy, T.; Raab, W.; Verhoeve, P.; Agnolon, D. and Woffinden, C.
Journal of Instrumentation, 13, Article C01022(1)

Mitigation strategies against radiation-induced background for space astronomy missions (2018-01-15)
Davis, Chris; Hall, David; Keelan, Jonathan; Holland, Andrew; O'Farrell, James and Leese, Mark
Journal of Instrumentation, 13(1)

Trap pumping schemes for the Euclid CCD273 detector: characterisation of electrodes and defects (2017-12-15)
Skottfelt, J.; Hall, D.J.; Dryer, B.; Bush, N.; Campa, J.; Gow, J.P.D.; Holland, A.D.; Jordan, D. and Burt, D.
Journal of Instrumentation, 12, Article C12033

Improving radiation hardness in space-based Charge-Coupled Devices through the narrowing of the charge transfer channel (2017-12-12)
Hall, D. J.; Skottfelt, J.; Soman, M. R.; Bush, N. and Holland, A.
Journal of Instrumentation, 12, Article C12021

Evolution and impact of defects in a p-channel CCD after cryogenic proton-irradiation (2017-11)
Wood, Daniel; Hall, David J.; Gow, Jason; Skottfelt, Jesper; Murray, Neil J.; Stefanov, Konstantin and Holland, Andrew D.
IEEE Transactions on Nuclear Science, 64(11) (pp. 2814-2821)

Comparing simulations and test data of a radiation damaged charge-coupled device for the Euclid mission (2017-04-06)
Skottfelt, Jesper; Hall, David J.; Gow, Jason P. D.; Murray, Neil J.; Holland, Andrew D. and Prod’homme, Thibaut
Journal of Astronomical Telescopes, Instruments, and Systems, 3, Article 28001(2)

In situ trap properties in CCDs: the donor level of the silicon divacancy (2017-01-31)
Hall, D.J.; Wood, D.; Murray, N.J.; Gow, J.P.D.; Chroneos, A. and Holland, A.
Journal of Instrumentation, 12, Article P01025

A study of the double-acceptor level of the silicon divacancy in a proton irradiated n-channel CCD (2016-08-16)
Wood, D.; Hall, D.; Gow, J. P. D. and Holland, A.
SPIE Proceedings: High Energy, Optical, and Infrared Detectors for Astronomy VII, 9915

Postirradiation behavior of p-channel charge-coupled devices irradiated at 153 K (2016-06-09)
Gow, Jason P. D.; Wood, Daniel; Murray, Neil; Burt, David; Hall, David J.; Dryer, Ben and Holland, Andrew D.
Journal of Astronomical Telescopes, Instruments, and Systems, 2(2) (p 26001)

Technology advancement of the CCD201-20 EMCCD for the WFIRST coronagraph instrument: sensor characterization and radiation damage (2015-12-14)
Harding, Leon K.; Demers, Richard T.; Hoenk, Michael; Peddada, Pavani; Nemati, Bijan; Cherng, Michael; Michaels, Darren; Neat, Leo S.; Loc, Anthony; Bush, Nathan; Hall, David; Murray, Neil; Gow, Jason; Burgon, Ross; Holland, Andrew; Reinheimer, Alice; Jorden, Paul R. and Jordan, Douglas
Journal of Astronomical Telescopes, Instruments, and Systems, 2(1) (p 11007)

Proton irradiation of a swept charge device at cryogenic temperature and the subsequent annealing (2015-01-26)
Gow, J. P. D.; Smith, P. H.; Pool, P.; Hall, D. J.; Holland, A. D. and Murray, N. J.
Journal of Instrumentation, 10, Article C01037(1)

Studying charge-trapping defects within the silicon lattice of a p-channel CCD using a single-trap “pumping” technique. (2014-12-15)
Wood, D.; Hall, D.; Murray, N.; Gow, J. and Holland, A.
Journal of Instrumentation, 9, Article C12028

Studying defects in the silicon lattice using CCDs (2014-12-01)
Hall, D. J.; Murray, N. J.; Gow, J. P. D.; Wood, D. and Holland, A.
Journal of Instrumentation, 9, Article C12004(12)

Determination of in situ trap properties in CCDs using a "single-trap pumping" technique (2014-08-14)
Hall, David J.; Murray, Neil J.; Holland, Andrew D.; Gow, Jason; Clarke, Andrew and Burt, David
IEEE Transactions on Nuclear Science, 61(4) (pp. 1826-1833)

Development of EM-CCD-based X-ray detector for synchrotron applications (2014-08-14)
Tutt, J. H.; Hall, D. J.; Soman, M. R.; Holland, A. D.; Warren, A.; Connolley, T. and Evagora, A. M.
Electronics Letters, 50(17) (pp. 1224-1226)

An improved model of charge transfer inefficiency and correction algorithm for the Hubble Space Telescope (2014-03-21)
Massey, Richard; Schrabback, Tim; Cordes, Oliver; Marggraf, Ole; Miller, Lance; Hall, David; Cropper, Mark; Prod'homme, Thibaut and Matias Niemi, Sami
Monthly Notices of the Royal Astronomical Society, 439(1) (pp. 887-907)

Comparison of EM-CCD and scientific CMOS based camera systems for high resolution X-ray imaging and tomography applications (2014)
Tutt, J. H.; Hall, D. J.; Soman, M. R.; Holland, A. D.; Warren, A. J.; Connolley, T. and Evagora, A. M.
Journal of Instrumentation, 9, Article P06017(6)

Vacancy-oxygen defects in silicon: the impact of isovalent doping (2014)
Londos, C. A.; Sgourou, E. N.; Hall, D. and Chroneos, A.
Journal of Materials Science: Materials in Electronics, 25(6) (pp. 2395-2410)

Simulations of charge transfer in Electron Multiplying Charge Coupled Devices (2014)
Bush, N.; Stefanov, K.; Hall, D.; Jordan, D. and Holland, A.
Journal of Instrumentation, 9, Article C12042(12)

Developing a CCD camera with high spatial resolution for RIXS in the soft X-ray range (2013-12)
Soman, M. R.; Hall, D. J.; Tutt, J. H.; Murray, N. J.; Holland, A. D.; Schmitt, T.; Raabe, J. and Schmitt, B.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 731 (pp. 47-52)

Improving the spatial resolution of soft X-ray detection using an Electron-Multiplying Charge-Coupled Device (2013-01)
Soman, M. R.; Hall, D. J.; Tutt, J. H.; Murray, N. J.; Holland, A. D.; Schmitt, T.; Raabe, J. and Schmitt, B.
Journal of Instrumentation, 8, Article C01046(1)

Phosphorous-vacancy-oxygen defects in silicon (2013)
Wang, Hao; Chroneos, Alexander; Hall, David; Sgourou, Efi and Schwingenschlogl, Udo
Journal of Materials Chemistry A, 1(37) (pp. 11384-11388)

The noise performance of electron-multiplying charge-coupled devices at soft X-ray energy values (2012-08)
Tutt, James H.; Holland, Andrew D.; Murray, Neil J.; Hall, David J.; Harriss, Richard D.; Clarke, Andrew and Evagora, Anthony M.
IEEE Transactions on Electron Devices, 59(8) (pp. 2192-2198)

The influence of electron multiplication and internal X-ray fluorescence on the performance of a scintillator-based gamma camera (2012-06-21)
Hall, David; Holland, Andrew and Soman, Matthew
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 678 (64- 77)

Optimisation of device clocking schemes to minimise the effects of radiation damage in charge-coupled devices (2012-04)
Hall, David; Gow, Jason; Murray, Neil and Holland, Andrew
IEEE Transactions on Electron Devices, 59(4) (pp. 1099-1106)

Electron-multiplying CCDs for future soft X-ray spectrometers (2012-02)
Tutt, J. H.; Holland, A. D.; Murray, N. J.; Harriss, R. D.; Hall, D. J. and Soman, M.
Journal of Instrumentation, 7(2) (C02031)

Assessment of space proton radiation-induced charge transfer inefficiency in the CCD204 for the Euclid space observatory (2012-01-05)
Gow, J. P. D.; Murray, Neil; Holland, Andrew; Hall, D. J. Hall; Cropper, M.; Hopkinson, G. and Duvet, L.
Journal of Instrumentation, 7(C01030)

Modelling charge storage in Euclid CCD structures (2012-01)
Clarke, A. S.; Hall, D. J.; Holland, A. and Burt, D.
Journal of Instrumentation, 7(C0105)

The noise performance of electron-multiplying charge-coupled devices at X-ray energies (2012-01)
Tutt, James H.; Holland, Andrew D.; Hall, David J.; Harriss, Richard D. and Murray, Neil J.
IEEE Transactions on Electron Devices, 59(1) (pp. 167-175)

Improving the resolution in soft X-ray emission spectrometers through photon-counting using an Electron Multiplying CCD (2012)
Hall, David; Soman, Matthew; Tutt, James; Murray, Neil; Holland, Andrew; Schmitt, T; Raabe, J; Strocov, V N and Schmitt, B
Journal of Instrumentation, 7 (C01063)

Photon-counting imaging camera for high-resolution X-ray and γ-ray applications (2011-01-11)
Hall, D. J. and Holland, A.
Journal of Instrumentation, 6(C01022)

Improving the spatial resolution of a soft X-ray Charge Coupled Device used for Resonant Inelastic X-ray Scattering (2011)
Soman, M. R.; Hall, D. J.; Tutt, J. H.; Murray, N. J.; Holland, A. D.; Schmitt, T.; Raabe, J. and Schmitt, B.
Journal of Instrumentation, 6(11) (C11021)

A study of electron-multiplying CCDs for use on the International X-ray Observatory off-plane x-ray grating spectrometer (2010-07-20)
Tutt, James. H.; Holland, Andrew D.; Murray, Neil J.; Hall, David J.; McEntaffer, Randall L.; Endicott, James and Robbins, Mark
Proceedings - SPIE the International Society for Optical Engineering, 7742(774205)

Space radiation environment effects on X-ray CCD background (2010-01)
Hall, David J. and Holland, Andrew
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 612(2) (pp. 320-327)

Gaia spectroscopy: processing, performances and scientific returns (2010)
Katz, D.; Cropper, M.; Meynadier, F.; Jean-Antoine, A.; Allende Prieto, C.; Baker, S.; Benson, K.; Berthier, J.; Bigot, L.; Blomme, R.; Boudreault, S.; Chemin, L.; Crifo, F.; Damerdji, Y.; David, M.; David, P.; Delle Luche, C.; Dolding, C.; Frémat, Y.; Gerbier, N.; Gerssen, J.; Gómez, A.; Gosset, E.; Guerrier, A.; Guy, L.; Hall, D.; Hestroffer, D.; Huckle, H.; Jasniewicz, G.; Ludwig, H-G.; Martayan, C.; Morel, T.; Nguyen, A.-T.; Ocvirk, P.; Parr, C.; Royer, F.; Sartoretti, P.; Seabroke, G.; Simon, E.; Smith, M.; Soubiran, C.; Steinmetz, M.; Thévenin, F.; Turon, C.; Udry, S.; Veltz, L. and Viala, Y.
EAS Publications Series, 45 (pp. 189-194)

High resolution x-ray and γ-ray imaging using a scintillator-coupled electron-multiplying CCD (2009-09)
Hall, David and Holland, Andrew
Proceedings of SPIE, 7449, (74491G)

The use of automatic scale selection to improve the spatial and spectral resolution of a scintillator-coupled EMCCD (2009-06)
Hall, David J.; Holland, Andrew and Smith, David R.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 604(1-2) (pp. 207-210)

Modelling instrument background for CCD x-ray spectrometers in space (2007)
Hall, David; Holland, Andrew and Turner, Martin
Proceedings of SPIE, 6686

Conference items

Tracking radiation damage of Euclid VIS detectors after 1 year in space (2024-08-23)
Skottfelt, Jesper; Wander, Matt; Cropper, Mark S.; Dryer, Benjamin; Hall, David J.; Hayes, Richard; Kelman, Bradley; Kitching, Thomas; Kohley, Ralf; Lagattuta, David J.; Lee-Payne, Zoe; Liebing, Patricia; Massey, Richard J.; McCracken, Henry J.; Nakajima, Reiko and Nightingale, James W.
In : Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave (16-20 Jun 2024, Yokohama, Japan)

Evaluating UV detector enhancement technologies for the next generation of space telescopes: the path to CASTOR (2024-08-21)
Skottfelt, Jesper; Crews, Chiaki; Dryer, Benjamin; Hall, David J.; Hetherington, Oliver; Hubbard, Michael W.; Jordan, Doug and Morris, David
In : Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray (16-20 Jun 2024, Yokohama, Japan)

Non-ionising radiation effects in a soft X-ray CMOS image sensor (2024)
Townsend-Rose, Charles; Buggey, Thomas W.; Ivory, James M.; Dazzazi, Imane; Stefanov, Konstantin D. and Hall, David J.
In : SPIE Astronomical Telescopes + Instrumentation, 2024 (16-22 Jun 2024, Yokohama, Japan)

Assessing the suitability of CIS220 for low light astronomy (2024)
Ivory, James M.; Smith, Phillipa; Skottfelt, Jesper M.; Stefanov, Konstantin D.; Buggey, Thomas W.; Prod'Homme, Thibaut and Hall, David J.
In : Proc. SPIE 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI, 131031I (16-19 Jun 2024, Yokohama, Japan)

Short-term trap decay in a cryogenically irradiated charge-coupled device (2022-10)
Buggey, Thomas; Bush, Nathan; Soman, Matthew; Hall, David; Parsons, Steven and Holland, Andrew
In : RADECs 2022 (3-7 Oct 2022, Venice, Italy)

Predicting the performance benefit of multi-level clocking in CCDs using the active trap model (2022)
Buggey, T. W.; Hall, D. J.; Soman, M. R.; Verhoeve, P. and Holland, A. D.
In : SPIE Astronomical Telescopes and Instrumentation (17 Jul - 22 Jul 2022, Montreal)

Modelling charge transfer inefficiency in Gaia CCDs with in-flight and on-ground data (2022)
Ahmed, Saad; Hall, David; Skottfelt, Jesper; Dryer, Benjamin; Holland, Andrew; Crowley, Cian and Hernandez, Jose
In : SPIE Astronomical Telescopes + Instrumentation (17-23 Jul 2022, Montreal, Canada) (p 51)

Calibrating and correcting charge transfer inefficiency in CCDs using Pyxel (2022)
Kelman, Bradley; Prod'homme, Thibaut; Skottfelt, Jesper; Lemmel, Frederic; Arko, Matej; Liebing, Patricia; Verhoeve, Peter; Dryer, Benjamin; Hall, David and Hubbard, Michael
In : SPIE Astronomical Telescopes + Instrumentation (17-23 Jul 2022, Montreal, Canada) (12191F)

Gaia CCDs: charge transfer inefficiency measurements between five years of flight (2020-12-13)
Ahmed, Saad; Hall, David; Crowley, Cian; Skottfelt, Jesper; Dryer, Benjamin; Seabroke, George; Hernandez, Jose and Holland, Andrew
In : X-Ray, Optical, and Infrared Detectors for Astronomy IX (14-18 Dec 2020, Online)

Processing x-ray data on board the SMILE SXI (2020-12-13)
Randall, George; Parsons, Steven; Hall, David; Buggey, Thomas; Hetherington, Oliver; Leese, Mark; Holland, Andrew; Yeoman, Dean and Soman, Matthew
In : SPIE Astronomical Telescopes + Instrumentation 2020 (14-18 Dec 2020, Online only)

Radiation damage testing status of the CCDs for the SMILE SXI (2020)
Parsons, Steven; Hall, David; Holland, Andrew; Verhoeve, Peter; Sembay, Steven; Randall, George; Hetherington, Oliver; Yeoman, Dean; Buggey, Thomas and Soman, Matthew
In : SPIE Astronomical Telescopes + Instrumentation (14-18 Dec 2020, Online)

Development of a photon-counting near-fano-limited x-ray CMOS image sensor for THESEUS' SXI (2020)
Heymes, Julian; Stefanov, Konstantin; Soman, Matthew; Gorret, Davide; Hall, David; Minoglou, Kyriaki; Morris, David; Pratlong, Jérôme; Prod'homme, Thibaut; Tsiolis, Georgios and Holland, Andrew
In : SPIE Astronomical Telescopes + Instrumentation 2020 (14-18 Dec 2020, Online only)

Monte Carlo simulations of hyper-velocity particulate mechanics within silicon micropore optics (2020)
Buggey, T.W.; Soman, Matthew R.; Keelan, Jonathan; Hall, D.J. and Holland, A.D.
In : SPIE Astronomical Telescopes + Instrumentation 2020 (14-18 Dec 2020, Online only) (p 102)

Developing the active trap model for CCD charge transfer optimisation in large-scale space missions (2020)
Buggey, T. W.; Soman, M. R.; Hall, D. J.; Parsons, S.; Bush, N.; Hetherington, O.; Randall, G.; Leese, M. and Holland, A. D.
In : SPIE Astronomical Telescopes and Instrumentation 2020 (14-18 Dec 2020, Online only)

Enhanced simulations on the ATHENA/WFI instrumental background (2020)
Eraerds, Tanja; Antonelli, Valeria; Davis, Chris; Hall, David; Hetherington, Oliver; Holland, Andrew; Keelan, Jonathan; Meidinger, Norbert; Miller, Eric D.; Molendi, Silvano; Perinati, Emanuele; pietschner@mpe.mpg.de, Daniel; Rau, Arne; den Herder, Jan-Willem A.; Nakazawa, Kazuhiro and Nikzad, Shouleh
In : Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray (2020, Online) (p 49)

Reducing the Athena WFI charged particle background: results from Geant4 simulations (2020)
Grant, Catherine E.; Miller, Eric D.; Bautz, Marshall W.; Eraerds, Tanja; Molendi, Silvano; Keelan, Jonathan; Hall, David; Holland, Andrew; Kraft, Ralph; Bulbul, Esra; Nulsen, Paul; Allen, Steven; den Herder, Jan-Willem A.; Nakazawa, Kazuhiro and Nikzad, Shouleh
In : Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ra (2020, Online) (p 53)

The silicon lattice defects in proton and gamma irradiated n-channel CCDs (2019)
Lindley-Decaire, Anton; Hall, D.; Bush, N.; Dryer, B. and Holland, A.
In : SPIE Optical Engineering + Applications (11-15 Aug 2019, San Diego, California, United States)

C3TM: CEI CCD charge transfer model for radiation damage analysis and testing (2018-07-20)
Skottfelt, Jesper; Hall, David J.; Dryer, Benjamin; Burgon, Ross and Holland, Andrew D.
In : SPIE Astronomical Telescopes + Instrumentation, 2018 (10-13 Jun 2018, Austin, Texas, US)

VIS: the visible imager for Euclid (2018-07-12)
Cropper, Mark; Pottinger, S.; Azzollini, R.; Szafraniec, M.; Awan, S.; Mellier, Y.; Berthé, M.; Martignac, J.; Cara, C.; Di Giorgio, A.-M.; Sciortino, A.; Bozzo, E.; Genolet, L.; Philippon, A.; Hailey, M.; Hunt, T.; Swindells, I.; Holland, A.; Gow, J.; Murray, N.; Hall, D.; Skottfelt, J.; Amiaux, J.; Laureijs, R.; Racca, G.; Salvignol, J.-C.; Short, A.; Lorenzo Alvarez, J.; Kitching, T.; Hoekstra, H.; Galli, E.; Willis, G.; Hu, H.; Candini, G.-P.; Boucher, J.; Al-Bahlawan, A.; Chaudery, R.; de Lacy, C.; Pendem, A.; Smit, S.; Dubois, J.-P.; Horeau, B.; Carty, M.; Fontignie, J.; Doumayrou, E.; Larchevêque, C.; Castelli, M.; Cole, R.; Niemi, S.; Denniston, J.; Massey, R.; Kohley, R.; Ferrando, P.; Conversi, L. and The Euclid Collaboration,
In : SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave (10-15 Jun 2018, Austin, Texas, US)

WFIRST coronagraph detector trap modeling results and improvements (2018-07-06)
Effinger, Robert; Nemati, Bijan; Rizzo, Maxime; Morrissey, Patrick; Harding, Leon; Bottom, Michael; Pontrelli, Donald; Demers, Richard T.; Bush, Nathan; Hall, David; Clarke, Andrew and Holland, Andrew
In : SPIE Astronomical Telescopes + Instrumentation, 2018 (10-13 Jun 2018, Austin, Texas, US) (p 44)

Predicting the particle-induced background for future x-ray astronomy missions: the importance of experimental validation for GEANT4 simulations (2018)
Hall, David; Keelan, Jonathan; Davis, Chris; Hetherington, Oliver; Leese, Mark and Holland, Andrew
In : SPIE Astronomical Telescopes and Instrumentation. (10-15 Jun 2018, Austin, Texas, United States) (p 124)

Evaluation of the ATHENA/WFI instrumental background (2018)
von Kienlin, Andreas; Eraerds, Tanja; Bulbul, Esra; Fioretti, Valentine; Gastaldello, Fabio; Grant, Catherine E.; Hall, David; Holland, Andrew; Keelan, Jonathan; Meidinger, Norbert; Molendi, Silvano; Perinati, Emanuele and Rau, Arne
In : Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray (2018) (351 - 367)

Evolution of proton-induced defects in a cryogenically irradiated p-channel CCD (2017-11-02)
Wood, Daniel; Hall, David; Gow, Jason; Murray, Neil; Stefanov, Konstantin and Holland, Andrew
In : 16th European Conference on Radiation and Its Effects on Components and Systems (RADECS 2016) (19-23 Sep 2016, Bremen)

Development of the X-ray camera for the OGRE sub-orbital rocket (2016-08-05)
Lewis, Matthew R. F.; Soman, Matthew R.; Holland, Andrew D.; Murray, Neil J.; Hall, David; Weatherill, Daniel P.; Tutt, James H.; McEntaffer, Randall L.; DeRoo, Casey T.; Schultz, Ted B. and Holland, Karen
In : SPIE High Energy, Optical, and Infrared Detectors for Astronomy VII (26-29 Jun 2016, Edinburgh, United Kingdom)

Validation of NIEL for >1MeV electrons in silicon using the CCD47-20 (2016-08-05)
Dryer, B.; Smith, P.; Nuns, T.; Murray, N.; Stefanov, K. D.; Gow, J. P. D.; Burgon, R.; Hall, D. J. and Holland, A. D.
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (26 Jun - 1 Jul 2016, Edinburgh, United Kingdom)

Mapping radiation-induced defects in CCDs through space and time (2016-08-01)
Hall, David; Wood, Daniel; Bush, Nathan; Murray, Neil; Gow, Jason; Skottfelt, Jesper and Holland, Andrew
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (26 Jun 2016, Edinburgh, United Kingdom)

Charge transfer efficiency in a p-channel CCD irradiated cryogenically and the impact of room temperature annealing (2016-08-01)
Gow, J.P.D.; Murray, N.J.; Wood, D.; Burt, D.; Hall, D.J.; Dryer, B. and Holland, A.D.
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (26 Jun - 1 Jul 2016, Edinburgh, United Kingdom) (99150L)

Comparing simulations and test data of a radiation damaged CCD for the Euclid mission (2016-07-27)
Skottfelt, Jesper; Gow, Jason; Hall, David; Murray, Neil; Holland, Andrew and Prod'homme, Thibaut
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (26 Jun - 01 Jul 2016, Edinburgh, UK) (p 991529)

VIS: the visible imager for Euclid (2016-07-19)
Cropper, M.; Pottinger, S.; Niemi, S.; Azzollini, R.; Denniston, J.; Szafraniec, M.; Awan, S.; Mellier, Y.; Berthe, M.; Martignac, J.; Cara, C.; Di Giorgio, A.-M.; Sciortino, A.; Bozzo, E.; Genolet, L.; Cole, R.; Philippon, A.; Hailey, M.; Hunt, T.; Swindells, I.; Holland, A.; Gow, J.; Murray, N.; Hall, D.; Skottfelt, J.; Amiaux, J.; Laureijs, R.; Racca, G.; Salvignol, J.-C.; Short, A.; Lorenzo Alvarez, J.; Kitching, T.; Hoekstra, H.; Massey, R. and Israel, H.
In : Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave conference (26 Jun - 1 Jul 2016) (99040Q)

Cryogenic irradiation of an EMCCD for the WFIRST coronagraph: preliminary performance analysis (2016)
Bush, Nathan; Hall, David; Holland, Andrew; Burgon, Ross; Murray, Neil; Gow, Jason; Jordan, Douglas; Demers, Richard; Harding, Leon K.; Nemati, Bijan; Hoenk, Michael; Michaels, Darren and Peddada, Pavani
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (26 Jun - 1 Jul 2016, Edinburgh, United Kingdom)

The effect of radiation-induced traps on the WFIRST coronagraph detectors (2016)
Nemati, Bijan; Effinger, Robert; Demers, Richard; Harding, Leon; Morrissey, Patrick; Bush, Nathan; Hall, David and Skottfelt, Jesper
In : High Energy, Optical, and Infrared Detectors for Astronomy VII (1 Aug 2016, Edinburgh, UK) (229 - 240)

Electron multiplication CCD detector technology advancement for the WFIRST-AFTA coronagraph (2015-10-30)
Harding, Leon K.; Demers, Richard T.; Hoenk, Michael; Peddada, Pavani; Nemati, Bijan; Cherng, Michael; Michaels, Darren; Loc, Anthony; Bush, Nathan; Hall, David; Murray, Neil; Gow, Jason; Burgon, Ross; Holland, Andrew; Reinheimer, Alice; Jorden, Paul R. and Jordan, Douglas
In : SPIE Optics and Photonics 2015 (9-13 Aug 2015, San Diego, California, USA)

A global shutter CMOS image sensor for hyperspectral imaging (2015-09-22)
Stefanov, Konstantin D.; Dryer, Ben. J.; Hall, David J.; Holland, Andrew D.; Pratlong, Jérôme; Fryer, Martin and Pike, Andrew
In : UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII (9 Aug 2015, San Diego, CA)

Challenges in photon-starved space astronomy in a harsh radiation environment using CCDs (2015-09-22)
Hall, David J.; Bush, Nathan; Murray, Neil; Gow, Jason; Clarke, Andrew; Burgon, Ross and Holland, Andrew
In : UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII (9 Aug 2015, San Diego, CA)

The impact of radiation damage on photon counting with an EMCCD for the WFIRST-AFTA coronagraph (2015-09-11)
Bush, Nathan; Hall, David; Holland, Andrew; Burgon, Ross; Murray, Neil; Gow, Jason; Soman, Matthew; Jordan, Doug; Demers, Richard; Harding, Leon K.; Hoenk, Michael; Michaels, Darren; Nemati, Bijan and Peddada, Pavani
In : SPIE Optics and Photonics 2015 (16-20 Aug 2015, San Diego, CA)

Initial results from a cryogenic proton irradiation of a p-channel CCD (2015)
Gow, J. P. D.; Wood, D.; Burt, D.; Hall, D. J.; Dryer, B. J.; Holland, A. D. and Murray, N. J.
In : UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX (9-13 Aug 2015, San Diego CA)

In situ trap parameter studies in CCDs for space applications (2014)
Hall, David J.; Murray, Neil; Gow, Jason; Wood, Daniel and Holland, Andrew
In : High Energy, Optical, and Infrared Detectors for Astronomy VI (22-27 Jun 2014, Montréal, Quebec) (p 915408)

Assessment of the performance and radiation damage effects under cryogenic temperatures of a P-channel CCD204s (2014)
Murray, Neil J.; Holland, Andrew D.; Gow, Jason P. D.; Hall, David J.; Stefanov, Konstantin D.; Dryer, Ben J.; Barber, Simeon and Burt, David J.
In : High Energy, Optical, and Infrared Detectors for Astronomy VI (22-27 Jul 2014, Montréal, Quebec)

VIS: the visible imager for Euclid (2014)
Cropper, Mark; Pottinger, S.; Niemi, S.-M.; Denniston, J.; Cole, R.; Szafraniec, M.; Mellier, Y.; Berthé, M.; Martignac, J.; Cara, C.; di Giorgio, A. M.; Sciortino, A.; Paltani, S.; Genolet, L.; Fourmand, J.-J.; Charra, M.; Guttridge, P.; Winter, B.; Endicott, J.; Holland, A.; Gow, J.; Murray, N.; Hall, D.; Amiaux, J.; Laureijs, R.; Racca, G.; Salvignol, J.-C.; Short, A.; Lorenzo Alvarez, J.; Kitching, T.; Hoekstra, H. and Massey, R.
In : Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave (22-27 Jul 2014, Montréal, Quebec)

The Euclid VIS CCD detector design, development, and programme status (2014)
Short, A. D.; Barry, D.; Berthe, M.; Boudin, N.; Boulade, O.; Cole, R.; Cropper, M.; Duvet, L.; Endicott, J.; Gaspar Venancio, L.; Gow, J.; Guttridge, P.; Hall, D.; Holland, A.; Israel, H.; Kohley, R.; Laureijs, R.; Lorenzo Alvarez, J.; Martignac, J.; Maskell, J.; Massey, R.; Murray, N.; Niemi, S.-M.; Pool, P.; Pottinger, S.; Prod'homme, T.; Racca, G.; Salvignol, J-C; Suske, W.; Szafraniec, M.; Verhoeve, P.; Walton, D. and Wheeler, R.
In : High Energy, Optical, and Infrared Detectors for Astronomy VI (22-27 Jun 2014, Montréal, Quebec)

Pixel-level modelling and verification for the EUCLID VIS CCD (2013-10-24)
Clarke, A.; Hall, D.; Murray, N.; Gow, J.; Holland, A. and Burt, D.
In : UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VI (25-26 Aug 2013, San Diego)

The relationship between pumped traps and signal loss in buried channel CCDs (2013-10-24)
Murray, Neil J.; Burt, David J.; Hall, David and Holland, Andrew D.
In : UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VI, (25-26 Aug 2013, San Diego)

High-resolution soft x-ray spectrometry using the electron-multiplying charge-coupled device (EM-CCD) (2013-08-26)
Hall, David J.; Tutt, James H.; Soman, Matthew; Holland, Andrew D.; Murray, Neil J.; Schmitt, Bernd and Schmitt, Thorsten
In : UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy (25-26 Aug 2013, San Diego)

Developing a high-resolution x-ray imager using electron-multiplying (EM) CCDs (2013)
Tutt, James H.; Hall, David J.; Holland, Andrew D.; Murray, Neil J. and Endicott, James
In : Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XV (26-28 Aug 2013, San Diego)

Device modelling and model verification for the Euclid CCD273 detector (2012-09-25)
Clarke, A.; Hall, D.; Murray, N.; Holland, A. and Burt, D.
In : High Energy, Optical, and Infrared Detectors for Astronomy V (1-6 Jul 2012, Amsterdam)

Mitigating radiation-induced charge transfer inefficiency in full-frame CCD applications by ‘pumping’ traps (2012-09-25)
Murray, N. J.; Holland, A. D.; Gow, J. P. D.; Hall, D. J.; Tutt, James H.; Burt, D. and Endicott, J.
In : High Energy, Optical, and Infrared Detectors for Astronomy V (1-6 Jul 2012, Amsterdam)

The use of CCDs and EM-CCDs for future soft x-ray spectrometers (2012-09-17)
Tutt, James H.; Holland, Andrew D.; Murray, Neil J.; Hall, David J.; Endicott, James and McEntaffer, Randall L.
In : Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray (1-6 Jul 2012, Amsterdam)

Modelling charge transfer in a radiation damaged charge coupled device for Euclid (2012)
Hall, David J.; Holland, Andrew; Murray, Neil; Gow, Jason and Clarke, Andrew
In : High Energy, Optical, and Infrared Detectors for Astronomy V (01-06 Jul 2012, Amsterdam)

Assessment of proton radiation-induced charge transfer inefficiency in the CCD273 detector for the Euclid Dark Energy Mission (2012)
Gow, J. P. D.; Murray, N. J.; Hall, D. J.; Clarke, A. S.; Burt, D.; Endicott, J. and Holland, A. D.
In : High Energy, Optical, and Infrared Detectors for Astronomy V (1-6 Jul 2012, Amsterdam)

The use of EM-CCDs on high resolution soft x-ray spectrometers (2011-09)
Tutt, James; Holland, Andrew; Murray, Neil; Harriss, Richard; Hall, David; Soman, Matthew; McEntaffer, Randall L. and ,
In : UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVII (21-24 Aug 2011, San Diego)

Compact CMOS camera demonstrator (C3D) for Ukube-1 (2011-09)
Harriss, R. D.; Holland, A. D.; Barber, S. J.; Karout, S.; Burgon, R.; Dryer, B. J.; Murray, N. J.; Hall, D. J.; Smith, P. H.; Greig, T.; Tutt, J. H.; Endicott, J.; Jerram, P.; Morris, D.; Robbins, M.; Prevost, V. and Holland, K.
In : UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts V (8 Sep 2011, San Diego)

Simulating and reproducing instrument background for x-ray CCD spectrometers in space (2008-06-22)
Hall, David; Holland, Andrew and Turner, Martin
In : Proceedings of SPIE: High Energy, Optical, and Infrared Detectors for Astronomy III (23-27 Jun 2008, Marseille)

Imaging and spectroscopy using a scintillator-coupled EMCCD (2008-06-22)
Hall, David J.; Holland, Andrew and Smith, David R.
In : Proceedings of SPIE: High Energy, Optical, and Infrared Detectors for Astronomy III (23-27 Jun 2008, Marseille)

Thesis

Exploring the impact of detection physics in X-ray CCD imagers and spectrometers (2010-06-22)
Hall, David
PhD thesis The Open University

Other

RVS Radiation Campaign 4 data II - Data Calibration (2014-01)
Dryer, Benjamin and Hall, David
GAIA LiveLink

RVS Radiation Campaign 4 data III - Parameter Measurement (2014-01)
Dryer, Benjamin and Hall, David
GAIA LiveLink

RVS Radiation Campaign 4 data: Initial assessment (2012-08-24)
Hall, David
Gaia DPAC, Gaia DPAC Livelink.

Data preparation for the RVS tests in the 3rd Astrium Radiation Campaign (2010-10-27)
Hall, David
Gaia DPAC, Gaia Livelink.

Analysis of the RVS tests in the 3rd Astrium Radiation Campaign II: Charge injection delay variation (2010-10-27)
Hall, David
Gaia DPAC, Gaia Livelink.

Analysis of the RVS tests in the 3rd Astrium Radiation Campaign I: Low-level and varying background level analysis (2010-10-27)
Hall, David
Gaia DPAC, Gaia Livelink.

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