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

Jesper Skottfelt; Chiaki Crews; Ben Dryer; David J. Hall; Oliver Hetherington; Michael W. J. Hubbard; Douglas Jordan; David Morris

doi:10.1117/12.3018390

21 August 2024 Evaluating UV detector enhancement technologies for the next generation of space telescopes: the path to CASTOR

Jesper Skottfelt, Chiaki Crews, Ben Dryer, David J. Hall, Oliver Hetherington, Michael W. J. Hubbard, Douglas Jordan, David Morris

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130933W (2024) https://doi.org/10.1117/12.3018390
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

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.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jesper Skottfelt, Chiaki Crews, Ben Dryer, David J. Hall, Oliver Hetherington, Michael W. J. Hubbard, Douglas Jordan, and David Morris "Evaluating UV detector enhancement technologies for the next generation of space telescopes: the path to CASTOR", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130933W (21 August 2024); https://doi.org/10.1117/12.3018390

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