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

S. Gunji, T. Suzuki, F. Sato, H. Sakurai, F. Tokanai, Y. Saito, A. Kubota

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1771-1776
Number of pages6
JournalAdvances in Space Research
Issue number10
Publication statusPublished - 2004
Externally publishedYes


  • Hard X-ray polarimeter
  • Scientific ballooning
  • γ-ray bursts

ASJC Scopus subject areas

  • Aerospace Engineering
  • Astronomy and Astrophysics
  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science
  • General Earth and Planetary Sciences


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