Radiation Study of Swept-Charge Devices for the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument

J. Gow, D. R. Smith, A. D. Holland, B. J. Maddison, C. J. Howe, M. Grande, P. Sreekumar, J. Huovelin

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

6 Citations (SciVal)

Abstract

The Chandrayaan-1 X-ray Spectrometer (C1XS) will be launched as part of the Indian Space Research Organisation (ISRO) Chandrayaan-1 payload in September 2008, arriving at the Moon within 7 days to begin a two year mission in lunar orbit conducting mineralogical surface mapping over the range of 1 - 10 keV. The detector plane of the instrument consists of twenty four e2v technologies CCD54 swept-charge devices (SCDs). Such devices were first flown in the Demonstration of a Compact Imaging X-ray Spectrometer (D-CIXS) instrument onboard SMART-1 [4, 5]. The detector plane in each case provides a total X-ray collection area of 26.4 cm2. The SCD is capable of providing near Fano-limited spectroscopy at -10 °C, and at -20 °C, near the Chandrayaan-1 mission average temperature, it achieves a total system noise of 6.2 electrons r.m.s. and a FWHM of 134 eV at Mn-K?. This paper presents a brief overview of the C1XS mission and a detailed study of the effects of proton irradiation on SCD operational performance.
Original languageEnglish
Title of host publicationProceedings of SPIE
Subtitle of host publicationHigh Energy, Optical, and Infrared Detectors for Astronomy III
Pages789-789
Number of pages1
Volume7021
DOIs
Publication statusPublished - 22 Jul 2008
EventSPIE: High Energy, Optical, and Infrared Detectors for Astronomy III - Marseille, Italy
Duration: 23 Jun 200827 Jun 2008

Conference

ConferenceSPIE: High Energy, Optical, and Infrared Detectors for Astronomy III
Country/TerritoryItaly
CityMarseille
Period23 Jun 200827 Jun 2008

Keywords

  • Radiation damage
  • Swept-charge device
  • SCD
  • C1XS
  • Chandrayaan-1
  • D-CIXS
  • Moon
  • X-ray

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