A simple method for measuring transition efficiencies of weak-field radio frequency transition units for polarized atomic hydrogen sources

Hidehiko Arima, Mitsuhiro Takada, Yoshito Shimosaki, Keisuke Maehata, Kenji Ishibashi

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

A weak magnetic field radio frequency transition unit (RFT) was developed and installed in a compact atomic-beam type polarized ion source. A simple experimental method was devised to determine the transition efficiency of the RFT without ionizing and/or accelerating of the atomic beam. This method is based on the switching operation of the RFT generating the difference in the atomic beam intensity. The measurement of the atomic beam intensity and the calculation of the acceptance for each state of the atom in the atomic beam system allow us to determine the transition efficiency of the RFT. The experimental transition efficiency of the RFT for hydrogen atoms was 0.88. For studying the validity of this method, the transition efficiency was calculated by solving a time-dependent Schrodinger equation by considering the actual magnetic field distribution in the RFT. The calculation results reproduced the experimental data within about 10% error.

元の言語英語
ページ(範囲)646-652
ページ数7
ジャーナルjournal of nuclear science and technology
36
発行部数8
DOI
出版物ステータス出版済み - 8 1999

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Atomic beams
radio frequencies
Hydrogen
atomic beams
hydrogen
Magnetic fields
Schrodinger equation
Atoms
Ion sources
magnetic fields
acceptability
ion sources
hydrogen atoms

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

これを引用

A simple method for measuring transition efficiencies of weak-field radio frequency transition units for polarized atomic hydrogen sources. / Arima, Hidehiko; Takada, Mitsuhiro; Shimosaki, Yoshito; Maehata, Keisuke; Ishibashi, Kenji.

:: journal of nuclear science and technology, 巻 36, 番号 8, 08.1999, p. 646-652.

研究成果: ジャーナルへの寄稿記事

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