Investigation of fission mechanism using RI beam and direct reaction
| Project/Area Number |
17H04843
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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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 |
Sasano Masaki 国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (10515802)
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| Project Period (FY) |
2017-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
Fiscal Year 2020: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
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| Keywords | 核分裂 / 元素合成 / 原子核（実験） |
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| Outline of Final Research Achievements |
We have developed an experimental setup to measure a complete set of the information on nuclear fission via the (p,2p) reaction by using RIKEN RIBF and the SAMURAI spectrometer. In this setup, one can measure the excitation energy of pre-fission nucleus and the fission products simultaneously. In particular, by measuring the nuclear fission barrier energy in the order of 1 MeV resolution, one can investigate the nuclear shell structure effect on the fission. In addition, by using RI beams, systematic studies of fission in unstable nuclei become possible. The first experiment in RIBF is already approved and the preparation is in progress. Obtained information will be used for the nuclear power industry as well as the undestanding of the r-process nucleo-synthesis.
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| Academic Significance and Societal Importance of the Research Achievements |
核分裂は1938年の発見以来、長らく原子力エネルギーの元として使われてきたが、その詳細な機構は、今だ記述することが難しい。この一つの原因は、核分裂に関する完全なデータが測定されていなかったことにある。また、近年核分裂は、重元素の起源であるr過程において、重要な役割を果たすと考えられており、その理解がますます重要になっている。このような社会的、学術的な要請を満たすためには、核分裂現象を系統的に、かつ、情報の完備性を担保しつつ、測定する必要がある。本研究ではそのためのものである。
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Report
(5 results)
Research Products
(1 results)
