Application of Silicon Photomultipliers to Compton-scattering-type Polarimeters for Gamma Ray Bursts

Y. Saito, S. Gunji, T. Nakamori, T. Mihara, D. Yonetoku, T. Sawano, S. Kurosawa, S. Kodaira, J. Gaskin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Gamma-ray bursts (GRBs) are the most energetic phenomena in the universe. To elucidate the radiation mechanism of GRBs, we are developing a Compton-scattering-type polarimeter using a plastic scintillator and CsI(Tl) scintillator attached to a silicon photomultiplier (SiPM). We constructed a small test model and investigated the basic performance. Moreover, irradiating the SiPM with protons, the radiation hardness has been also investigated. From these experiments, we have recognized that the Compton-scattering-type polarimeter will obtain the sensitivity to the energy above approximately 30 keV if the radiation damage to the SiPM is not serious. On the other hand, the dark current of the SiPM becomes several thousand times higher for a few krad of irradiation and can be accumulated in the space environment in a few years. This means that the polarimeter will work well in balloon-borne experiments for a few weeks.

Original languageEnglish
Title of host publication2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538684948
DOIs
Publication statusPublished - 2018 Nov
Externally publishedYes
Event2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Sydney, Australia
Duration: 2018 Nov 102018 Nov 17

Publication series

Name2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings

Conference

Conference2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018
CountryAustralia
CitySydney
Period18/11/1018/11/17

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Nuclear and High Energy Physics

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