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The Basic Study for Atomic Hydrogen Gas

Research Project

Project/Area Number 61400004
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionNagoya University

Principal Investigator

HORIKAWA Naoaki  Nagoya Univ., Faculty of Sci., Dept. of Phys., Associate Professor, 理学部, 助教授 (70022697)

Co-Investigator(Kenkyū-buntansha) MIAKE Kazumasa  Osaka Univ., Faculty of Engineering Sci., Associate Porfessor, 基礎工学部, 助教授 (90109265)
HAYASHI Yoshikazu  Univ. of Osaka Pref., College of Integrated Arts and Sci., Professor, 総合科学部, 教授 (00022591)
FUKUI Syuuji  Sugiyama Jyogaku-en Univ., Professor, 教授 (60022505)
MORI Kunikazu  Nagoya Univ., College of Medical Tech., Professor, 医療技術短期大学部, 教授 (70022663)
NAKANISHI Tsutomu  Nagoya Univ., Faculty of Sci., Dept. of Phys., Associate Professor, 理学部, 助教授 (40022735)
Project Period (FY) 1986 – 1988
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥25,600,000 (Direct Cost: ¥25,600,000)
Fiscal Year 1988: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1987: ¥15,000,000 (Direct Cost: ¥15,000,000)
Fiscal Year 1986: ¥5,600,000 (Direct Cost: ¥5,600,000)
KeywordsAtomic Hydrogen Gas / Dilution Cryostat / polarization / Dissociation of Hydrogen Molecule / Recombination of Atomic Hydrogen / 水素原子再結合 / 強磁場
Research Abstract

This project aims at the production of the spin polarized atomic gydrogen gas and study the physical characteristics of the gas. To perform this research work, one must construct (I) the high magnetic field by a superconductive magnet, (2) low temperature by a dilution cryostat, (3) dissociation of hydrogen gas to atoms, (4) condensation of gas in a chamber (5) detection of the gas density, polarization etc. and (6) the ejection of stored gas by microwave.
Now, we have completed the high magnetic field by superconductive magnet. The magnetic field was excited up to 6.4 Tesla, and driven by constant current mode. The liq. ^4He consumption rate was 0.59, lh and 0.89. /h at constant and normal current modes, respectively. The dilution cryostat has been built at the workshop of our institute. The test by helium-3 mode showed fairly good performance, but it has been made clear that some improvements were necessary by the dilution mode operation. The improvement has been almost finished. The dissociation of hydrogen gas by RF oscillator was observed at room temperature. The chamber for the atomic hydrogen gas is made and the bolometer is installed in it. We are now testing the detection of the atomic hydrogen gas in a small superconducting magnet set in a glass dewar.
In order to complete this project, the following studies should be performed further.
(1) The cooling of the gas at several lomx by the dilution mode cryostat.
(2) The establishment of the gas detection method for the atomic hydrogen.
(3) The measurements of the gas density and polarization.
(4) The test of the ejection of the polarized atomic hydrogen gas.

Report

(4 results)
  • 1991 Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • 1986 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 松田 達郎: "偏極アンモニアタ-ゲットの開発と位相検波方形式NMRによる偏極度測定装置の開発" 原子核研究. 32. 51-88 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 坂中 章悟: "A highーspeed nuclearーmagneticーresonance dataーacquisition system with a personal computer for a polarized target in highーenergy physics" Rev.Sci.Instrum.62. 1859-1860 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 大森 千広: "Proton polarimeter for high energy experiment at KEK" Nucl.Instr.Methods. A278. 705-712 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 大森 千広: "Measurement of analyzing power in forward angle for elastic pdscattering at 3.5 Ge" Phys.Lett.230B. 27-30 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 大森 千広: "Analyzing power for quasiーelastic C(p,2p) and Cu(p,2p) scattering at 3.5 GeV" Phys.Lett.243B. 29-32 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] N.Hayashi;N.Horikawa;Y.Ishida;T.Matsuda;T.Nakanishi;S.Okumi;A.Wakai: Review of Scientific Instruments.

    • Related Report
      1988 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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