The CODEX sounding rocket payload

B. Zeiger, A. Shipley, W. Cash, T. Rogers, T. Schultz, R. McEntaffer, M. Kaiser

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

10 Scopus citations


We present the CODEX sounding rocket payload, a soft x-ray (0.1-1.0 keV) spectrometer designed to observe diffuse high-surface brightness astronomical sources. The payload is composed of two modules, each with a 3.25° x 3.25° field of view defined by a stack of wire grids that block light not coming to a 3.0 m focus and admit only nearly-collimated light onto an array of 67 diffraction gratings in an off-plane mount. After a 2.0 m throw, the spectrum is detected by offset large-format gaseous electron multiplier (GEM) detectors. CODEX will target the Vela supernova remnant later this year to measure the temperature and abundances and to determine the contributions of various soft x-ray emission mechanisms to the remnant's energy budget; resulting spectra will have resolution (E/ΔE) ranging from 50 to 100 across the band. CODEX is the third-generation of similar payloads from the University of Colorado, with an increased bandpass, higher throughput, and a more robust mechanical structure than its predecessors.

Original languageEnglish (US)
Title of host publicationEUV and X-Ray Optics
Subtitle of host publicationSynergy Between Laboratory and Space II
StatePublished - Jun 14 2011
EventEUV and X-Ray Optics: Synergy Between Laboratory and Space II - Prague, Czech Republic
Duration: Apr 20 2011Apr 21 2011

Publication series

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


OtherEUV and X-Ray Optics: Synergy Between Laboratory and Space II
Country/TerritoryCzech Republic

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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