J-PARCパルス中性子回折装置の高度化と物質研究への適用

• 川崎 卓郎

  日本原子力研究開発機構J-PARCセンター

書誌事項

タイトル別名

• Upgrading of Pulsed Neutron Diffractometers and Materials Research at J-PARC
• 受賞記事 J-PARCパルス中性子回折装置の高度化と物質研究への適用
• ジュショウ キジ J-PARC パルス チュウセイシ カイセツ ソウチ ノ コウドカ ト ブッシツ ケンキュウ エ ノ テキヨウ

抄録

  The data correction and the experimental procedures were upgraded in order to enhance the capability of the pulsed neutron diffractometers at the Materials and Life Science Experimental Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC), and adopted for materials research. The magnetic structure of the intermetallic compound EuGa₄ was investigated using the single-crystal pulsed neutron diffractometer SENJU. The diffraction spots from EuGa₄ single crystal were clearly observed despite of extremely high neutron absorption of Eu. By adopting a wavelength-dependent absorption collection, the antiferromagnetic structure of EuGa₄ with a nearly full magnetic moment of 6.4 μ_B of Eu was revealed. Further, the stroboscopic neutron diffraction system using the event data recording was developed for the engineering material diffractometer TAKUMI. The domain switching and the lattice strain induced by the intergranular stress in the piezoelectric material in the multilayer actuator under a cyclic electric field were observed with the nominal time resolution of 77 ms.

収録刊行物

• 波紋

  波紋 29 (2), 77-81, 2019-05-10

  日本中性子科学会

キーワード

• pulsed neutron diffraction
• SENJU
• TAKUMI
• magnetic structure
• absorption correction
• piezoelectric material
• stroboscopic measurement

詳細情報

• CRID: 1390003825184703616
• NII論文ID: 130007850435
• NII書誌ID: AA11905115
• DOI: 10.5611/hamon.29.2_77
• ISSN: 1884636X
• ISSN: 1349046X
• NDL書誌ID: 029739851
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029739851
• Web Site: https://www.jstage.jst.go.jp/article/hamon/29/2/29_77/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可