Dr. Julian Heymes Profile

Dr. Julian Heymes

at Open Univ

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 29 August 2022 Presentation + Paper

A CMOS image sensor for soft x-ray astronomy

Konstantin Stefanov, Charles Townsend-Rose, Thomas Buggey, James Ivory, Oliver Hetherington, Andrew Holland, Julian Heymes, Jérôme Pratlong, Georgios Tsiolis, David Morris, Kyriaki Minoglou, Thibaut Prod'homme, Matthew Soman

Proceedings Volume 12191, 121910N (2022) https://doi.org/10.1117/12.2630733

KEYWORDS: Sensors, X-rays, CMOS sensors, X-ray imaging, X-ray astronomy, Silicon, Photodiodes

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SPIE Journal Paper | 8 January 2021

Measurement and optimization of clock-induced charge in electron multiplying charge-coupled devices

Nathan Bush, Julian Heymes, David Hall, Andrew Holland, Douglas Jordan

JATIS, Vol. 7, Issue 01, 016002, (January 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.1.016002

KEYWORDS: Clocks, Electron multiplying charge coupled devices, Temperature metrology, Interference (communication), Signal processing, Signal generators, Sensors, Photon counting, Charge-coupled devices, Calibration

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Proceedings Article | 13 December 2020 Presentation + Paper

Calibrating Teledyne-e2v’s ultraviolet image sensor quantum efficiency processes

Julian Heymes, Matthew Soman, Thomas Buggey, Chiaki Crews, George Randall, Alexander Gottwald, Andrew Harris, Andrew Kelt, Udo Kroth, Ian Moody, Xiao Meng, Oskar Ogor, Andrew Holland

Proceedings Volume 11454, 114541G (2020) https://doi.org/10.1117/12.2559711

KEYWORDS: Ultraviolet radiation, Image processing, Quantum efficiency, Calibration, Image sensors, Sensors, X-ray optics, X-rays, Wafer-level optics, Reflectivity

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Proceedings Article | 13 December 2020 Presentation + Paper

Development of a photon-counting near-fano-limited x-ray CMOS image sensor for THESEUS' SXI

Julian Heymes, Konstantin Stefanov, Matthew Soman, Davide Gorret, David Hall, Kyriaki Minoglou, David Morris, Jérôme Pratlong, Thibaut Prod'homme, Georgios Tsiolis, Andrew Holland

Proceedings Volume 11454, 114540I (2020) https://doi.org/10.1117/12.2560162

KEYWORDS: CMOS sensors, Spectroscopy, Space operations, X-ray imaging, X-ray telescopes, X-rays, Sensors, Space telescopes, X-ray optics, Telescopes

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