Development of hard X-ray polarimeter for γ-ray bursts

Details Development of hard X-ray polarimeter for γ-ray bursts Development of hard X-ray polarimeter for γ-ray bursts

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..33.1771g&link_type=abstract

Advances in Space Research, Volume 33, Issue 10, p. 1771-1776.

Astronomy and Astrophysics

Astrophysics

3

Scientific Ballooning, Hard X-Ray Polarimeter, Γ-Ray Bursts

Scientific paper

The radiation mechanism of gamma-ray bursts (GRBs) is one of the most interesting topics in the field of astrophysics. According to the fireball model, the γ-rays from GRBs should be much polarized. So we have been developing a Compton scattering type hard X-ray polarimeter for GRBs using segmented scintillators and multianode photomultipliers. We carried out basic experiments and computer simulations to investigate the basic performance. As the results, it was recognized that the designed polarimeter can detect the polarization of hard X-rays from GRBs with both the flux 10 times more than that of Crab nebula and the duration of 10 s if the hard X-rays are 8.6% polarized.

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