Characterisation of swept-charge devices for the Chandrayaan-1 x-ray spectrometer (C1XS) instrument

Gow, J.; Smith, D. R.; Holland, A. D.; Maddison, B.; Howe, C.; Sreekumar, P.; Huovelind, J. and Grande, M. (2007). Characterisation of swept-charge devices for the Chandrayaan-1 x-ray spectrometer (C1XS) instrument. In: SPIE Optics+Photonics 2007: Astronomical Optics and Instrumentation, 26-30 Aug 2007, San Diego, California, USA.




The Indian Space Research Organisation (ISRO) Chandrayaan-1 mission is India’s first lunar spacecraft, containing a suite of instruments to carry out high-resolution remote sensing of the Moon at visible, near infrared and X-ray wavelengths. Due for launch in early 2008, the spacecraft will carry out its two year mission in a polar orbit around the Moon at an altitude of 100 km. One of the eleven instruments in the spacecraft payload is the Chandrayaan-1 X-ray Spectrometer (C1XS), a descendant of the successful D-CIXS instrument that flew on the European Space Agency SMART-1 lunar mission launched in 2003. C1XS consists of 24 swept-charge device (SCD) silicon X-ray detectors arranged in 6 modules that will carry out high quality X-ray spectroscopic mapping of the Moon using the technique of X-ray fluorescence. This paper presents an overview of the Chandrayaan-1 mission and specifically the C1XS instrument and describes the development of an SCD test facility, proton irradiation characterisation and screening of candidate SCD devices for the mission.

Viewing alternatives

Download history


Public Attention

Altmetrics from Altmetric

Number of Citations

Citations from Dimensions

Item Actions