| Project/Area Number |
15H03672
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
SAKAI Hideyuki 国立研究開発法人理化学研究所, 仁科加速器研究センター, 部長 (90030030)
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| Co-Investigator(Renkei-kenkyūsha) |
YAKO Kentaro 東京大学, 理学系研究科・原子核科学研究センター, 准教授 (50361572)
MICHIMASA Shin'ichiro 東京大学, 理学系研究科・原子核科学研究センター, 助教 (80392140)
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| Research Collaborator |
OTA Shinsuke 東京大学, 理学系研究科・原子核科学研究センター, 助教
KAWATA Keita 東京大学, 理学系研究科・原子核科学研究センター, 大学院生
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
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| Keywords | 実験核物理 / アイソマービーム / 破砕核反応 / ダイヤモンド検出器 / 荷電交換核反応 / ガモフテラー遷移 / 荷電交換反応 |
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| Outline of Final Research Achievements |
The main aim of this research is to establish a technical method to discriminate an isomeric state via a TOF measurement in the beam line and to find a fragmentation reaction to have a large isomeric ratio.
We achieved the time resolution of 40 ps in FWHM by utilizing a diamond detector and a fast preamplifier system. This value is enough for the future isomer-(p,n) measurement. We searched for a fragmentation reaction which has a high isomer ratio R for 52Fe(12+). The systematic study was made for the primary beams of 58Ni, 59Co and 82Kr. We finally found that the fragmentation reaction of 82Kr->52Fe(12+)+10p20n has about R～35%. This R value is the minimum value that can be applied for the the future experiment.
Thus the initial aims are completely fulfilled.
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