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Title: Radiation study of swept-charge devices for the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument
Authors: Gow, J
Smith, DR
Holland, AD
Maddison, B
Howe, C
Grande, M
Sreekumar, P
Huovelin, J
Keywords: Radiation damage;Swept-charge device;SCD;C1XS;Chandrayaan-1;D-CIXS;Moon;X-ray
Issue Date: 2007
Publisher: SPIE
Citation: Proceedings of SPIE, High Energy, Optical, and Infrared Detectors for Astronomy III, Marseille, France, 23 June 2008. vol. 7021
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-Kalpha. This paper presents a brief overview of the C1XS mission and a detailed study of the effects of proton irradiation on SCD operational performance.
Appears in Collections:Electronic and Computer Engineering
Dept of Electronic and Computer Engineering Research Papers

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