Description of the UCam detector control system with a particular emphasis to a development of 4K X 4K camera systems

Nagaraja Bezawada; Stewart McLay; Derek Ives

doi:10.1117/12.856960

19 July 2010 Description of the UCam detector control system with a particular emphasis to a development of 4K×4K camera systems

Nagaraja Bezawada, Stewart McLay, Derek Ives

Author Affiliations +

Proceedings Volume 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV; 77421A (2010) https://doi.org/10.1117/12.856960
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

This paper describes the features and functionality of the UCam (UKATC Universal Camera Control and Data Acquisition) detector control system with a particular emphasis on development and testing of two 4K×4K CCD camera systems built recently at UKATC and delivered to a group of telescopes in India. These two camera systems use two variants of an e2v CCD203 device; a 4k×4k standard back-thinned device and a deep depleted silicon device. Apart from the expected differences with the spectral response of these devices, other performance differences have been observed between the two systems such as conversion gain non-linearity, electrical crosstalk between outputs, fringing etc. which are thought to be related to the silicon thickness. Both these detectors show charge trapping during device power on or when saturated. The effects of this charge trapping and a solution implemented to minimise it will be presented. The configuration of the UCAM system, custom built detector mount and fanout board and the overall performance of these camera systems will also be presented.

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Nagaraja Bezawada, Stewart McLay, and Derek Ives "Description of the UCam detector control system with a particular emphasis to a development of 4K×4K camera systems", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77421A (19 July 2010); https://doi.org/10.1117/12.856960

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KEYWORDS

Silicon

Charge-coupled devices

Imaging systems

Cameras

CCD cameras

Digital signal processing

Quantum efficiency

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