Time evolution calculation of muon catalysed fusion: Emission of recycling muons from a two-layer hydrogen film
| Autor: | Yasushi Kino, Kenichi Okutsu, Koichiro Shimomura, Kazuhiro Yasuda, Shoichiro Nishimura, Yukinori Nagatani, Katsuhiko Ishida, Patrick Strasser, Hiroaki Natori, Naritoshi Kawamura, Motoyasu Sato, Soshi Takeshita, Shinji Okada, S. Kanda, Motonobu Tampo, Amba Datt Pant, Takuma Yamashita, Toshitaka Oka, Yasuhiro Miyake, Shogo Doiuchi, Konan Miyashita, Ryota Nakashima |
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| Rok vydání: | 2021 |
| Předmět: |
Muon-catalyzed fusion
Materials science Muon Hydrogen Physics::Instrumentation and Detectors Mechanical Engineering Time evolution chemistry.chemical_element Rate equation Kinetic energy 01 natural sciences 010305 fluids & plasmas Nuclear Energy and Engineering Deuterium chemistry Solid hydrogen 0103 physical sciences Physics::Accelerator Physics General Materials Science Physics::Atomic Physics Atomic physics 010306 general physics Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 169:112580 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2021.112580 |
| Popis: | Recycling muon having approximately 10 keV kinetic energy produced in a muon catalysed fusion ( μ CF) cycle is expected to be a source of negative muon beam with high-spatial/time coherence. We report a time evolution calculation of μ CF cycle with a particular focus on the emission of recycling muons from a hydrogen film target. Rate equations for the μ CF reactions are solved using the 4th-order Runge-Kutta method. Considering a two-layer solid hydrogen film target composed of 1 mm hydrogen-deuterium layer and 2 µm deuterium-tritium layer, we have numerically simulated the time evolution of the muonic states and their populations in these layers. The muon atomic and molecular processes in the layers are solved simultaneously by introducing a probability of muonic deuterium atoms traveling between the layers via the Ramsauer-Townsend effect. The use of T 2 amplifies the recycling muon emission. A weak dependence of the emission fraction of the recycling muons on the T 2 concentration is predicted, which can be utilized to minimize the usage of tritium. |
| Databáze: | OpenAIRE |
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