Simulation study on the measurements of diffusion coefficients in solid materials by short-lived radiotracer beams

Sun Chan Jeong, Ichiro Katayama, Hirokane Kawakami, Hironobu Ishiyama, Hiroari Miyatake, Masao Sataka, Akihiro Iwase, Satosi Okayasu, Hiroyuki Sugai, Shinichi Ichikawa, Katsuhisa Nishio, Yasuharu Sugiyama, Masahito Yahagi, Kazunori Takada, Mamoru Watanabe

研究成果: Article査読

17 被引用数 (Scopus)

抄録

We have examined, by a computer simulation, an on-line measurement of diffusion coefficients by using a short-lived alpha particle emitter, 8Li (half life of 0.84s), as a radiotracer. The energy spectra of alpha particles emitted from diffusing 8Li primarily implanted in the sample of LiAl are simulated as a measure of the diffusion of 8Li in the sample. As a possible time sequence for the measurement, a time cycle of 6 s, i.e. the implantation of 8Li for 1.5 s and subsequent diffusion for 4.5 s, is supposed. The sample is primarily set on a given temperature for the measurement. The time-dependent yields of alpha particles during the time cycle reveal the possibility to measure the diffusion coefficient with an accuracy of 10% if larger than 1 × 10-9 cm2/s, by the comparison with the experimental spectra measured at the temperature, i.e. at a certain diffusion coefficient.

本文言語English
ページ(範囲)4576-4583
ページ数8
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
42
7 A
DOI
出版ステータスPublished - 2003 7月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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