2016 Fiscal Year Final Research Report
Search for dark matter with a Compton camera for line gamma rays
| Project/Area Number |
26610055
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Ibaraki University |
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Principal Investigator |
|
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | ガンマ線 / 暗黒物質 / コンプトンカメラ / シンチレータ― / 陽電子 |
|---|
| Outline of Final Research Achievements |
The origin of dark matter can be constrained by observation of 511keV line gamma rays produced by annihilation of positrons generated by dark-matter annihilation. The purpose of this study is to investigate the feasibility of scintillator-based sensitive Compton camera optimized for observation of 511keV gamma rays. The energy resolutions and the angular resolutions were measured by using various candidate scintillators and photon detectors. The detector simulation with the measurements of the scintillators was carried out, indicating large effective area with good angular resolution if a large number of readout channels are available.
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| Free Research Field |
宇宙物理学
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