Ground calibration of Solar X-ray Monitor on board the Chandrayaan-2 orbiter
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Ground calibration of Solar X-ray Monitor on board the Chandrayaan-2 orbiter N. P. S. Mithun1 · Santosh V. Vadawale1 · M. Shanmugam1 · Arpit R. Patel1 · Neeraj Kumar Tiwari1 · Hiteshkumar L. Adalja1 · Shiv Kumar Goyal1 · Tinkal Ladiya1 · Nishant Singh1 · Sushil Kumar1 · Manoj K. Tiwari2 · M. H. Modi2 · Biswajit Mondal1 · Aveek Sarkar1 · Bhuwan Joshi1 · P. Janardhan1 · Anil Bhardwaj1 Received: 4 July 2020 / Accepted: 10 November 2020 / © Springer Nature B.V. 2020
Abstract Chandrayaan-2, the second Indian mission to the Moon, carries a spectrometer called the Solar X-ray Monitor (XSM) to perform soft X-ray spectral measurements of the Sun while a companion payload, CLASS, measures the fluorescence emission from the Moon. Together these two payloads will provide quantitative estimates of elemental abundances on the lunar surface. The XSM with its high time cadence and high energy resolution spectral measurements, is also expected to provide significant contributions to solar X-ray studies. For this purpose, the XSM employs a Silicon Drift Detector and carries out energy measurements of incident photons in the 1 – 15 keV range with a resolution of
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