Instruments of RT-2 experiment onboard CORONAS-PHOTON and their test and evaluation. I. Ground calibration of RT-2/S and RT-2/G

Debnath, Dipak ; Nandi, Anuj ; Rao, A. R. ; Malkar, J. P. ; Hingar, M. K. ; Kotoch, T. B. ; Sreekumar, S. ; Madhav, V. P. ; Chakrabarti, Sandip K. (2011) Instruments of RT-2 experiment onboard CORONAS-PHOTON and their test and evaluation. I. Ground calibration of RT-2/S and RT-2/G Experimental Astronomy, 29 (1-2). pp. 1-25. ISSN 0922-6435

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Official URL: http://www.springerlink.com/content/tjv41872m521k1...

Related URL: http://dx.doi.org/10.1007/s10686-010-9205-2

Abstract

Phoswich detectors (RT-2/S & RT-2/G) are major scientific payloads of the RT-2 Experiment onboard the CORONAS-PHOTON mission, which was launched into a polar Low Earth Orbit of around 550 km on 2009 January 30. These RT-2 instruments are designed and developed to observe solar flares in hard X-rays and to understand the energy transport processes associated with these flares. Apart from this, these instruments are capable of observing Gamma Ray Bursts (GRBs) and Cosmic diffuse X-ray background (CDXRB). Both detectors consist of identical NaI(Tl) and CsI(Na) scintillation crystals in a Phoswich combination, having the same diameter (116 mm) but different thicknesses. The normal working energy range is from 15 keV to 150 keV, but may be extendable up to ~1 MeV. In this paper, we present the RT-2/S and RT-2/G instruments and discuss their testing and calibration results. We used different radio-active sources to calibrate both detectors. The radio-active source 57Co (122 keV) is used for onboard calibration of both instruments. During its lifetime (~3-5 years), RT-2 is expected to cover the peak of the 24th solar cycle.

Item Type:Article
Source:Copyright of this article belongs to Springer.
Keywords:Scintillation Detectors; X- and γ-ray Telescopes and Instrumentation; Laboratory Experiments; Solar Flares
ID Code:85590
Deposited On:03 Mar 2012 14:54
Last Modified:03 Mar 2012 14:54

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