Systematic Measurements of the Life of Neutron-Rich Nuclei and Improvement of its Data Acquisition
| Project/Area Number |
21340065
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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 | Tokyo University of Science |
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Principal Investigator |
CHIBA Junsei 東京理科大学, 理工学部, 教授 (50126124)
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| Co-Investigator(Kenkyū-buntansha) |
SUMIKAMA Toshiyuki 東京理科大学, 理工学部, 助教 (20392003)
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2009: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | 不安定核 / 加速器実験 / ベータ崩壊 / 寿命測定 / 元素合成 / データ収集 / データ収集効率化 / 理化学研究所 / 放射線医学総合研究所 / Zr-110 |
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| Research Abstract |
ssr spectroscopy of the nuclei with mass number A= 100-120 has been carried out at the RIBF accelerator (RIKEN). Among the results, the following two points should be emphasized; (1) The life of nuclei are about 2 times shorter than those obtained by theoretical models. This fact is urging reexamination of the nucleosynthesis scenario. (2) Some excitation states including isomers are first measured, and new knowledge was brought to nuclear shape and structure. Electronics including data acquisition for gamma ray measurements have been improved which makes vary efficient data acqusition possible
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Report
(5 results)
Research Products
(40 results)
