高圧力の科学と技術
Online ISSN : 1348-1940
Print ISSN : 0917-639X
特集:高圧下における中性子散乱実験の実際と展望
開口角の広い対向型アンビルの開発とCa(OD)2 の圧力誘起相転移
飯塚 理子
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ジャーナル フリー

2016 年 26 巻 2 号 p. 128-139

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Newly designed opposed-type anvil assemblies were developed for acquiring high signal intensity of neutron diffraction data and ruby fluorescence spectra. Ni-binded WC anvils with a wide aperture angle, which were combined with a hybrid gasket made of TiZr and Al-alloy, achieved nearly ~15 GPa at room temperature. The neutron diffraction intensity was 2.5-3.0 times greater than that using the conventional toroidal anvil assemblies. The performance test of these new anvil assemblies confirms that sufficient quality diffraction data can be obtained. Using these assemblies, high-pressure behavior of hydrogen bond in Ca(OD)2 was investigated at PLANET beamline, J-PARC.

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© 2016 日本高圧力学会
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