| Project/Area Number |
23340078
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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 | High Energy Accelerator Research Organization |
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Principal Investigator |
ISHIMOTO Shigeru 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (50141974)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Shoji 高エネルギー加速器研究機構, 素粒子原子核研究所, 専門技師 (00391722)
SAWADA Shinya 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (70311123)
OZAWA Akira 筑波大学, 数理物質科学科(系), 教授 (80260214)
IMAI Nobuaki 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (80373273)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2013: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2012: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2011: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
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| Keywords | 原子核実験 / 固体水素標的 / 固体重水素標的 / 低温 / 個体重水素標的 / 原子核（実験） / 固体パラ水素標的 / 固体水素昇華圧 / 原子核(実験) |
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| Research Abstract |
The IRIS-experiment using the windowless solid hydrogen (deuteron) target was conducted at TRIUMF in Canada. The thickness of the solid hydrogen target was 50-100 micron. Hydrogen gas at room temperature was sprayed on the surface of pure silver foil (t=5 micron) at lower than 4 K cooled by the GM-Cryocooler in the vacuum, and the solid hydrogen thin film was created. During this experiment, the beam energy loss in the target was measured and the target thickness was always monitored. Since the target thickness was halved in 8-24 hours, the hydrogen target was re-created. In the case of solid deuterium, the reduction of target thickness could not be observed by the energy loss method.
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