Isotope Fluctuation in Indium-Lead Alloy Induced by Solid Centrifugation

被引：1

作者：

Ono, Masao ^{[1
]}

Iguchi, Yusuke ^{[2
]}

Okayasu, Satoru ^{[1
]}

Esaka, Fumitaka ^{[3
]}

Kobayashi, Katsura ^{[4
]}

Hao, Ting ^{[1
]}

Bagum, Rabaya ^{[2
]}

Osawa, Takahito ^{[3
]}

Fujii, Kimio ^{[1
]}

Nakamura, Eizo ^{[4
]}

Mashimo, Tsutomu ^{[1
,2
]}

机构：

[1] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[2] Kumamoto Univ, Shock Wave & Condensed Matter Res Ctr, Kumamoto 8608555, Japan

[3] Japan Atom Energy Agcy, Nucl Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan

[4] Okayama Univ, Inst Study Earths Interior, Misasa, Tottri 6820193, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2008年

关键词：

ultracentrifuge; gravitational field; In-Pb; indium-lead; graded structure; sedimentation; isotope separation; isotope fluctuation; isotope fractionation effect; In isotope;

D O I：

10.1080/00223131.2008.10875989

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The atomic-scale graded structure of In-Pb alloy was formed by an ultracentrifuge experiment under conditions that a gravitational field of 0.81 x 10(6)G for 100 hours at 150 degrees C (solid state) in our previous study. The isotope fluctuation on this sample was measured using secondary ion mass spectrometer (SIMS). The In-115/In-113 isotope ratio changed with positive gradient in the direction of centrifugal force approximately 1.2%. The isotope ratio fluctuation of centrifuged sample was 4 times larger than that of starting sample (<0.3%). This showed that the isotope fractionation effect was induced by solid centrifugation in this alloy, although achieved concentration gradients were small.

引用

页码：108 / 110

页数：3

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