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The effect of protons on the performance of second generation Swept Charge Devices
Gow, Jason P. D.; Holland, Andrew D.; Pool, Peter J. +1 more
The e2v technologies Swept Charge Device (SCD) was developed as a large area detector for X-ray Fluorescence (XRF) analysis, achieving near Fano-limited spectroscopy at -15 °C. The SCD was flown in the XRF instruments onboard the European Space Agency's SMART-1 and the Indian Space Research Organisation's Chandrayaan-1 lunar missions. The second g…
Calibration of the C1XS instrument on Chandrayaan-1
Howe, C. J.; Kellett, B. J.; Narendranath, S. +5 more
The Chandrayaan-1 X-ray spectrometer (C1XS) experiment on the Chandrayaan-1 mission was designed to carry out spectroscopic observations in the 1-10 keV range for deriving lunar chemistry. We present results from the ground calibration of the Swept Charge Devices (SCDs) on C1XS at the RESIK X-ray beam facility at Rutherford Appleton Laboratory, Ch…
Ground calibration of the Chandrayaan-1 X-ray Solar Monitor (XSM)
Andersson, H.; Grande, M.; Alha, L. +9 more
The Chandrayaan-1 XSM ground calibrations are introduced. The aim of these calibrations was to characterize the performance of XSM, which enables a reliable spectral analysis with the solar X-ray data. The calibrations followed an improved procedure based on our experience from the SMART-1 XSM. The most important tasks in the calibrations were det…
Characterization and selection of CZT detector modules for HEX experiment onboard Chandrayaan-1
Sreekumar, P.; Sudhakar, M.; Shanmugam, M. +4 more
We present the results of characterization of a large sample of Cadmium Zinc Telluride (CZT) detector modules planned to be used for the HEX (High Energy X-ray spectrometer) experiment onboard India's first mission to the Moon, Chandrayaan-1. We procured forty modules from Orbotech Medical Solutions Ltd. and carried out a detailed characterization…
The effect of protons on the performance of swept-charge devices
Smith, David R.; Gow, Jason
The e2v technologies CCD54, or swept-charge device (SCD) has been extensively radiation tested for use in the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument, to be launched as a part of the Indian Space Research Organisation (ISRO) Chandrayaan-1 payload in 2008. The principle use of the SCD is in X-ray fluorescence (XRF) applications, the devi…