NUCLEAR ORIENTATION AND REORIENTATION STUDIES WITH ND147

被引：7

作者：

BARRETT, PH

SHIRLEY, DA

机构：

[1] Department of Chemistry, Lawrence Radiation Laboratory, University of California, Berkeley

[2] Department of Physics, University of California, Santa Barbara, CA

来源：

PHYSICAL REVIEW | 1969年 / 184卷 / 04期

关键词：

D O I：

10.1103/PhysRev.184.1181

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The results of new nuclear orientation measurements on Nd147 and reanalysis of old data in light of the revised temperature scale for neodymium ethylsulfate (NES) are presented. Previously assigned spins in Pm147 are confirmed, while several γ-ray mixing ratios are altered somewhat, and the previously reported L=0 character of several β branches is found to be incorrect. Auxiliary experiments in cerium magnesium nitrate (CMN) give further support to the new NES temperature scale. The attenuation factors of the 91-keV level in Pm147 were determined for the two lattices to be G2(91)NES=0.89±0.11 and G2(91)CMN=0.42±0.12. The latter is in poor agreement with Daniels and Misra's theoretical values. Available data on reorientation following decay of oriented nuclei in paramagnetic salts are summarized, and are interpreted as indicating dependences on both evironment and intermediate-state lifetime. © 1969 The American Physical Society.

引用

页码：1181 / &

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