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2020

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Saxena, Gaurav

Solar X-ray Monitor Onboard Chandrayaan-2 Orbiter

Abstract Views :452 | PDF Views:203

Authors

M. Shanmugam ¹, S. V. Vadawale ¹, Arpit R. Patel ¹, Hitesh Kumar Adalaja ¹, N. P. S. Mithun ¹, Tinkal Ladiya ¹, Shiv Kumar Goyal ¹, Neeraj K. Tiwari ¹, Nishant Singh ¹, Sushil Kumar ¹, Deepak Kumar Painkra ¹, Y. B. Acharya ¹, Anil Bhardwaj ¹, A. K. Hait ², A. Patinge ², Abinandhan Kapoor ³, H. N. Suresh Kumar ³, Neeraj Satya ³, Gaurav Saxena ⁴, Kalpana Arvind ⁴

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

Source

Current Science, Vol 118, No 1 (2020), Pagination: 45-52

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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References

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Instrument for Lunar Seismic Activity Studies on Chandrayaan-2 Lander

Abstract Views :3386 | PDF Views:239

Authors

J. John ¹, V. Thamarai ¹, M. M. Mehra ¹, Teena Choudhary ¹, M. S. Giridhar ¹, Ashwini Jambhalikar ¹, Gogulapati Supriya ¹, Gaurav Saxena ¹, K. V. Shila ¹, B. Ramesh ¹, T. K. Pratheek ¹, Deepak Kumar Sharma ¹, R. Islam ¹, P. Selvaraj ¹, A. Kalpana ¹, S. Ajith Kumar ¹, K. V. Sriram ¹, A. S. Laxmiprasad ¹

Affiliations
1 Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, IN

Source

Current Science, Vol 118, No 3 (2020), Pagination: 376-382

Abstract

Instrument for Lunar Seismic Activity Studies (ILSA) is a science payload with the objective of studying seismic activities at the landing site of Vikram, the Lander of Chandrayaan-2. ILSA will be deployed to the lunar surface by a specially built mechanism. It is an indigenously developed instrument based on microelectro mechanical systems technology. High sensitivity silicon micro-machined accelerometer is the heart of the instrument that measures ground acceleration due to lunar quakes. The instrument has the capability of resolving acceleration better than 100 nano-g Hz^–1/2 up to a range of 0.5 g over bandwidth of 40 Hz. This paper presents the basic concepts in the design, realization, characterization and the performance test results of the space qualified strong motion seismic sensors.

Keywords

Lunar Quakes, MEMS, Seismometer, Strong Motion Sensors.

Full Text

References

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Author Details

Saxena, Gaurav

Solar X-ray Monitor Onboard Chandrayaan-2 Orbiter

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Abstract

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References

Instrument for Lunar Seismic Activity Studies on Chandrayaan-2 Lander

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