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The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer

Publication ,  Conference
Walker, TE; Smith, DR; Howe, CJ; Kellett, BJ; Sreekumar, P; Grande, M
Published in: Proceedings of SPIE - The International Society for Optical Engineering
September 7, 2010

The Chandrayaan-1 X-ray Spectrometer (C1XS) was launched onboard the Indian Space Research Organisation (ISRO) Chandrayaan-1 lunar mission in October 2008. The instrument consisted of 24 swept-charge device silicon X-ray detectors providing a total collecting area of ~24 cm2, corresponding to a 14° field of view (FWHM), with the ability to measure X-rays from 0.8 - 10 keV. During the 10 months the spacecraft was located in orbit around the Moon a number of solar flare X-ray events were detected, along with calibration data from X-ray sources housed inside the movable door of the instrument. This paper presents a study of the degradation in spectral resolution of the measured X-ray calibration lines, comparing those recorded mid way through the mission lifetime with ground based calibration data collected prior to the launch of the instrument. The radiation environment the detectors were subjected to is discussed in light of the actual radiation damage effects on the spectral resolution observed in flight. © 2010 SPIE.

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Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

September 7, 2010

Volume

7742

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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Walker, T. E., Smith, D. R., Howe, C. J., Kellett, B. J., Sreekumar, P., & Grande, M. (2010). The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7742). https://doi.org/10.1117/12.858648
Walker, T. E., D. R. Smith, C. J. Howe, B. J. Kellett, P. Sreekumar, and M. Grande. “The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer.” In Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7742, 2010. https://doi.org/10.1117/12.858648.
Walker TE, Smith DR, Howe CJ, Kellett BJ, Sreekumar P, Grande M. The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer. In: Proceedings of SPIE - The International Society for Optical Engineering. 2010.
Walker, T. E., et al. “The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 7742, 2010. Scopus, doi:10.1117/12.858648.
Walker TE, Smith DR, Howe CJ, Kellett BJ, Sreekumar P, Grande M. The effects of radiation damage on the spectral resolution of the Chandrayaan-1 x-ray spectrometer. Proceedings of SPIE - The International Society for Optical Engineering. 2010.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

September 7, 2010

Volume

7742

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering