| Project/Area Number |
24654052
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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 |
Astronomy
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| Research Institution | Japan Aerospace Exploration Agency |
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Principal Investigator |
MASANOBU Ozaki 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (90300699)
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| Research Collaborator |
DOTANI Tadayasu
NATSUKARI Chikara
FUJINAGA Takahisa
IZAWA Masaharu
IWAI Masachika
KONDO Keisuke
KAI Shinji
NAKAJIMA Hiroshi
ANABUKI Naohisa
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | CCD / 放射線 / バックグラウンド除去 / 撮像素子 / 荷電粒子 / 雑音除去 / モンテカルロシミュレーション / モンテカルロ・シミュレーション |
|---|
| Outline of Final Research Achievements |
A research to exclude charged-particle events from X-ray CCD detector output was carried out. Two full-depletion CCD of 200um thickness are stacked with 125 um gap, and events on a chip that have counterparts in a few pixel distance on the other chip are regarded as of charged-particle origin. The chips are mounted on the both sides of a ceramic board with a central hole. We tested the charged-particle descrimination with 230 MeV proton beam, and confirmed that significant part of the events are recognized as the charged-particle origin. The recognition efficiency is, however, significantly lower than our Monte Carlo simulation prediction. Thus further study about the detail of the incident particles and development of the optimal chip alignment and signal processing scheme are required for a practical use.
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