Feasibility of spectro-photometry in X-rays (SPHINX) from the moon

Details Feasibility of spectro-photometry in X-rays (SPHINX) from the moon Feasibility of spectro-photometry in X-rays (SPHINX) from the moon

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010exa....28...61s&link_type=abstract

Experimental Astronomy, Volume 28, Issue 1, pp.61-77

Astronomy and Astrophysics

Astronomy

Scientific paper

Doing space Astronomy on lunar surface has several advantages. We present here feasibility of an All Sky Monitoring Payload for Spectro-photometry in X-rays (SPHINX) which can be placed on a lander on the moon or in a space craft orbiting around the moon. The Si-PIN photo-diodes and CdTe crystals are used to detect solar flares, bright gamma bursts, soft gamma-ray repeaters from space and also X-ray fluorescence (XRF) from lunar surface. We present the complete Geant4 simulation to study the feasibility of such an instrument in presence of Cosmic Diffused X-Ray Background (CDXRB). We find that the signal to noise ratio is sufficient for moderate to bright GRBs (above 5 keV), for the quiet sun (up to 100 keV), solar flares, soft gamma-ray repeaters, X-ray Fluorescence (XRF) of lunar surface etc. This is a low-cost system which is capable of performing multiple tasks while stationed at the natural satellite of our planet.

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