STUDY OF OXYGEN DIFFUSION IN QUARTZ BY USING THE NUCLEAR REACTION O-18(p,alpha)N-15

被引：65

作者：

Choudhury, A. ^{[1
]}

Palmer, Derek W. ^{[1
]}

Amsel, G. ^{[1
]}

Curien, H. ^{[1
]}

Baruch, P. ^{[1
]}

机构：

[1] Univ Paris, Lab Mineral Cristallog, F-75252 Paris, France

来源：

SOLID STATE COMMUNICATIONS | 1965年 / 3卷 / 06期

关键词：

D O I：

10.1016/0038-1098(65)90385-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new method is applied to the study of the diffusion of the stable isotope O-18 in a solid. It consists of measuring the spectrum of the alpha-particles produced by the nuclear reaction O-18(p,alpha)N-15 when the solid is bombarded by monoenergetic protons. This alpha-particle spectrum is closely related to the distribution of O-18 atoms in the solid. By this method we have studied diffusion in crystalline quartz heated in high-pressure O-18-enriched steam. The results indicate that the diffusion was strongly anisotropic. At 667 C and 820 bar pressure, the diffusion coefficients were similar to 8.10(-14) cm(2)/sec perpendicular to the c-axis and similar to 4.10(-12) cm(2)/sec parallel to the c-axis.

引用

页码：119 / 122

页数：4

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