Half-lives of isomeric levels of Sr-87m, Cd-111m, In-113m and In-115m activated by Co-60 gamma-ray irradiation

被引：8

作者：

Wen, XQ

Shizuma, K

Hamanaka, S

Iwatani, K

Hasai, H

机构：

[1] HIROSHIMA UNIV,FAC ENGN,HIGASHIHIROSHIMA 739,JAPAN

[2] YUGE NATL COLL MARITIME TECHNOL,YUGE,EHIME 79425,JAPAN

[3] HIROSHIMA DENKI INST TECHNOL,DEPT ELECT ENGN,AKI KU,HIROSHIMA 73903,JAPAN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 397卷 / 2-3期

关键词：

half-life; isomer; Co-60; photoactivation; gamma-ray spectroscopy;

D O I：

10.1016/S0168-9002(97)00757-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Isomers having half-lives of a few hours have been photoactivated by Co-60 gamma-ray irradiation. The gamma-rays emitted from isomers were measured with a low-background Ge detector. The decay data were analyzed by both least-squares method and maximum likelihood method and the suitability of the latter method is discussed. The obtained half-lives are: Sr-87m: 2.811 +/- 0.027 h, Cd-111m: 48.30 +/- 0.15 min, In-113m: 1.663 +/- 0.011 h and In-115m: 4.483 +/- 0.005 h.

引用

页码：478 / 482

页数：5

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