2014 Fiscal Year Final Research Report
Prototype development of gamma-ray burst polarimeter for a small satellite
| Project/Area Number |
24340033
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KISHIMOTO Yuji 大学共同利用機関法人高エネルギー加速器研究機構, 助教 (50583481)
YONETOKU Daisuke 金沢大学, 理学部, 准教授 (40345608)
MIHARA Tatehiro 理化学研究所, MAXIチーム, 先任研究員 (20260200)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | ガンマ線バースト / 偏光 / 検出器 |
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| Outline of Final Research Achievements |
Since 1960', many gamma-ray bursts have been observed with various observation methods. However, the radiation mechanism has been not clarified, yet. Recently, it is recognized by the observations of polarization for a few gamma ray bursts that the measurements of the polarization are useful for the clarification of the radiation mechanism. So we are developing larger polarimeter with higher sensitivity. It consists of multianode photomultiplier with ultra bialkali photocathode and GAGG scintillator and we have constructed the bread board model. From basic experiments and computer simulation, we recognized that it can obtain both 10% detection efficiency and 36% modulation factor even for 30 keV.
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| Free Research Field |
宇宙物理学実験
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