16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-148
Paper 13093-148

Evaluating UV detector enhancement technologies for the next generation of space telescopes: the path to CASTOR

On demand | Presented live 17 June 2024

Abstract

As space agencies consider the next generation of large space telescopes, it is becoming clear that high performance Ultraviolet (UV) imaging will be a key requirement. High-performing CMOS image sensors that are optimised for UV detection performance will therefore be essential for these missions to be able to fulfil their science requirements. The CASTOR mission, a 1m UV space telescope project, will be utilising the large format CIS303 and CIS120 detectors from Teledyne e2v for three large focal planes covering the UV , u ′ and g ′ bands, respectively. Typically, silicon sensors have a very low quantum efficiency (QE) in the UV band between 150- 300 nm, and the 2d-doping technology from NASA/JPL will therefore be utilised to improve the quantum efficiency. The Open University will perform electro-optical testing and space qualification of the CIS303 and CIS120 detectors, including a comparison of different UV coating and enhancement technologies. This paper covers the specification of radiation testing of the CIS303 and CIS120 detectors at the Open University, and characterisation of the QE-enhancing surface treatments.

Presenter

The Open Univ. (United Kingdom)
Dr. Jesper Skottfelt is a Research Fellow at the Centre for Electronic Imaging (CEI) at the Open University in the UK. He is primarily involved in detector simulation, characterization, and development for the UV, optical, and NIR wavelength range. He has been working on the radiation damage testing of the Euclid VIS detectors since 2015 with an emphasis on developing and defining the trap pumping method and is now leading the analysis of the trap pumping data that is being obtained as part of the in-orbit calibration routines for Euclid VIS. Additionally, Dr. Skottfelt is leading the work at the CEI to characterise and space-qualify the UV optimised detectors to be used for the Canadian CASTOR mission.
Presenter/Author
The Open Univ. (United Kingdom)
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The Open Univ. (United Kingdom)
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The Open Univ. (United Kingdom)
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The Open Univ. (United Kingdom)
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The Open Univ. (United Kingdom)
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The Open Univ. (United Kingdom)
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Teledyne e2v UK Ltd. (United Kingdom)
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David Morris
Teledyne e2v UK Ltd. (United Kingdom)