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Proceedings Paper

Technological developments of the OGRE focal plane array
Author(s): James H. Tutt; Randall L. McEntaffer; Casey DeRoo; Ted Schultz; Thomas Rogers; Neil Murray; Andrew Holland; Daniel Weatherill; Karen Holland; David Colebrook; David Farn
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Paper Abstract

The Off-plane Grating Rocket Experiment (OGRE) is a high resolution soft X-ray spectrometer sub-orbital rocket payload designed as a technology development platform for three low Technology Readiness Level (TRL) components. The incident photons will be focused using a light-weight, high resolution, single-crystal silicon optic. They are then dispersed conically according to wavelength by an array of off-plane gratings before being detected in a focal plane camera comprised of four Electron Multiplying Charge-Coupled Devices (EM-CCDs). While CCDs have been extensively used in space applications; EM-CCDs are seldom used in this environment and even more rarely for X-ray photon counting applications, making them a potential technology risk for larger scale X-ray observatories. This paper will discuss the reasons behind choosing EM-CCDs for the focal plane detector and the developments that have been recently made in the prototype camera electronics and thermal control system.

Paper Details

Date Published: 18 September 2015
PDF: 11 pages
Proc. SPIE 9601, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX, 960105 (18 September 2015); doi: 10.1117/12.2186630
Show Author Affiliations
James H. Tutt, The Univ. of Iowa (United States)
Randall L. McEntaffer, The Univ. of Iowa (United States)
Casey DeRoo, The Univ. of Iowa (United States)
Ted Schultz, The Univ. of Iowa (United States)
Thomas Rogers, Univ. of Colorado at Boulder (United States)
Neil Murray, The Open Univ. (United Kingdom)
Andrew Holland, The Open Univ. (United Kingdom)
Daniel Weatherill, The Open Univ. (United Kingdom)
Karen Holland, XCAM Ltd. (United Kingdom)
David Colebrook, XCAM Ltd. (United Kingdom)
David Farn, XCAM Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 9601:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX
Oswald H. Siegmund, Editor(s)

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