2013年12月
Pulsed neutron powder diffraction at high pressure by a capacity-increased sapphire anvil cell
HIGH PRESSURE RESEARCH
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- 巻
- 33
- 号
- 4
- 開始ページ
- 777
- 終了ページ
- 786
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1080/08957959.2013.852190
- 出版者・発行元
- TAYLOR & FRANCIS LTD
A new design of opposed anvil cell for time-of-flight neutron powder diffraction was prepared for use at advanced pulsed sources. A couple of single-crystal sapphire sphere anvils and a gasket of fully hardened Ti-Zr null alloy were combined to compress 35 mm(3) of sample volume to 1 GPa and 11 mm(3) to 2 GPa of pressures, respectively. A very high-quality powder diffraction pattern was obtained at Japan Proton Accelerator Research Complex for a controversial high pressure phase of methane hydrate. The counting statistics, resolution, absolute accuracy and d-value range of the pattern were all improved to be best suitable for precise structure refinement. The sample is optically accessible to be measured by Raman and fluorescence spectroscopy during and after compression. The current cell will be an alternative choice to study hydrogenous materials of complex structures that are stable at the described pressure regime.
- リンク情報
- ID情報
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- DOI : 10.1080/08957959.2013.852190
- ISSN : 0895-7959
- eISSN : 1477-2299
- ORCIDのPut Code : 25091110
- Web of Science ID : WOS:000327931000009
- ORCIDで取得されたその他外部ID : a:1:{i:0;a:1:{s:8:"other-id";s:19:"WOS:000327931000009";}}