Determination of hydrogen tunneling diffusion rate in solid hydrogen using muon relaxation method

2015 Fiscal Year Final Research Report

• Project/Area Number: 26620010
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Osaka University
• Principal Investigator: Shinohara Atsushi 大阪大学, 理学(系)研究科(研究院), 教授 (60183050)
• Co-Investigator(Kenkyū-buntansha): NINOMIYA Kazuhiko 大阪大学, 大学院理学研究科, 助教 (90512905)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: ミュー粒子 / エキゾチック原子 / ミュオニウム / 散乱断面積 / 拡散過程 / 固体水素

Outline of Final Research Achievements

In this study, we aim to determine hydrogen tunneling diffusion rate in solid hydrogen using muon relaxation method. For this purpose, in the first step of this study, we try to investigate the interaction between hydrogen and muon through total cross section measurement. The construction of experimental setup for cross section measurement was completed. This system was consisted of scattering gas cell, beam collimator, vacuum pumps and muon detecting counters. Because of accelerator trouble for J-PARC, the beam time was very limited and only feasibility study for cross section measurement was done. The experimental setup for muon relaxation method for solid hydrogen to determine hydrogen tunneling diffusion was also constructed.

Free Research Field

放射化学・核化学