Technological developments of the OGRE focal plane array

James H. Tutt, Randall L. McEntaffer, Casey DeRoo, Ted Schultz, Thomas Rogers, Neil Murray, Andrew Holland, Daniel Weatherill, Karen Holland, David Colebrook, David Farn

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish (US)
Title of host publicationUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX
EditorsOswald H. W. Siegmund, Oswald H. W. Siegmund
ISBN (Electronic)9781628417678, 9781628417678
StatePublished - 2015
EventUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX - San Diego, United States
Duration: Aug 9 2015Aug 10 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX
Country/TerritoryUnited States
CitySan Diego

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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