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Solar X-ray Monitor Onboard Chandrayaan-2 Orbiter


Affiliations
1 Physical Research Laboratory, Ahmedabad 380 009, India
2 Space Applications Centre, Ahmedabad 380 015, India
3 U. R. Rao Satellite Centre, Bengaluru 560 017, India
4 Laboratory for Electro Optics Systems, Bengaluru 560 058, India
 

Solar X-ray Monitor (XSM) is one of the scientific instruments onboard Chandrayaan-2 orbiter. The XSM along with instrument CLASS (Chandra’s Large Area soft X-ray Spectrometer) comprise the remote X-ray fluorescence spectroscopy experiment of Chandrayaan- 2 mission with an objective to determine the elemental composition of the lunar surface on a global scale. XSM instrument will measure the solar X-rays in the energy range of 1–15 keV using state-of-the-art silicon drift detector. The flight model of the XSM payload has been designed, realized and characterized for various operating parameters. XSM provides energy resolution of ~180 eV at 5.9 keV with high time cadence of one second. The X-ray spectra of the Sun observed with XSM will also contribute to the study of solar corona. The detailed description and the performance characteristics of the XSM instrument are presented in this article.

Keywords

Lunar X-Rays, Silicon Drift Detector, Solar X-Rays, X-Ray Spectrometer.
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  • Solar X-ray Monitor Onboard Chandrayaan-2 Orbiter

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Authors

M. Shanmugam
Physical Research Laboratory, Ahmedabad 380 009, India
S. V. Vadawale
Physical Research Laboratory, Ahmedabad 380 009, India
Arpit R. Patel
Physical Research Laboratory, Ahmedabad 380 009, India
Hitesh Kumar Adalaja
Physical Research Laboratory, Ahmedabad 380 009, India
N. P. S. Mithun
Physical Research Laboratory, Ahmedabad 380 009, India
Tinkal Ladiya
Physical Research Laboratory, Ahmedabad 380 009, India
Shiv Kumar Goyal
Physical Research Laboratory, Ahmedabad 380 009, India
Neeraj K. Tiwari
Physical Research Laboratory, Ahmedabad 380 009, India
Nishant Singh
Physical Research Laboratory, Ahmedabad 380 009, India
Sushil Kumar
Physical Research Laboratory, Ahmedabad 380 009, India
Deepak Kumar Painkra
Physical Research Laboratory, Ahmedabad 380 009, India
Y. B. Acharya
Physical Research Laboratory, Ahmedabad 380 009, India
Anil Bhardwaj
Physical Research Laboratory, Ahmedabad 380 009, India
A. K. Hait
Space Applications Centre, Ahmedabad 380 015, India
A. Patinge
Space Applications Centre, Ahmedabad 380 015, India
Abinandhan Kapoor
U. R. Rao Satellite Centre, Bengaluru 560 017, India
H. N. Suresh Kumar
U. R. Rao Satellite Centre, Bengaluru 560 017, India
Neeraj Satya
U. R. Rao Satellite Centre, Bengaluru 560 017, India
Gaurav Saxena
Laboratory for Electro Optics Systems, Bengaluru 560 058, India
Kalpana Arvind
Laboratory for Electro Optics Systems, Bengaluru 560 058, India

Abstract


Solar X-ray Monitor (XSM) is one of the scientific instruments onboard Chandrayaan-2 orbiter. The XSM along with instrument CLASS (Chandra’s Large Area soft X-ray Spectrometer) comprise the remote X-ray fluorescence spectroscopy experiment of Chandrayaan- 2 mission with an objective to determine the elemental composition of the lunar surface on a global scale. XSM instrument will measure the solar X-rays in the energy range of 1–15 keV using state-of-the-art silicon drift detector. The flight model of the XSM payload has been designed, realized and characterized for various operating parameters. XSM provides energy resolution of ~180 eV at 5.9 keV with high time cadence of one second. The X-ray spectra of the Sun observed with XSM will also contribute to the study of solar corona. The detailed description and the performance characteristics of the XSM instrument are presented in this article.

Keywords


Lunar X-Rays, Silicon Drift Detector, Solar X-Rays, X-Ray Spectrometer.

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DOI: https://doi.org/10.18520/cs%2Fv118%2Fi1%2F45-52