Requirements and design considerations of UV and x-ray detectors for astronomical purposes

Melville P. Ulmer

doi:10.1117/12.271195

15 April 1997 Requirements and design considerations of UV and x-ray detectors for astronomical purposes

Melville P. Ulmer

Proceedings Volume 2999, Photodetectors: Materials and Devices II; (1997) https://doi.org/10.1117/12.271195
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

Since our previous review, new developments have occurred which make it interesting to compare wide bandgap semiconductors with low temperature detectors. We compare the strengths and weaknesses of each of these devices. We show that there is a need for both types of devices. Furthermore, single or small-array versions of the low temperature devices have been shown to work as single photon-counting devices. This gives the low temperature devices a distinct advantage over wide bandgap detectors. The ability to operate at room temperature and to be able to use standard indium bump bonding techniques to allow for relatively routine fabrication of 500 X 500 pixel formats should, however, provide impetus to further development of wide bandgap semiconductor devices.

Citation Download Citation

Melville P. Ulmer "Requirements and design considerations of UV and x-ray detectors for astronomical purposes", Proc. SPIE 2999, Photodetectors: Materials and Devices II, (15 April 1997); https://doi.org/10.1117/12.271195

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