INTENSITIES OF GAMMA RAYS FROM CALIBRATION SOURCE 56CO

被引:35
作者
SCOTT, HL
VANPATTE.DM
机构
[1] Bartol Research Foundation, Franklin Institute, Swarthmore
[2] Physics Department, University of Georgia, Athens, GA
来源
PHYSICAL REVIEW | 1969年 / 184卷 / 04期
关键词
D O I
10.1103/PhysRev.184.1111
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The intensities and energies of γ rays from 77.3-day Co56 are especially useful for calibration of Ge(Li) detectors in the range 0.8-3.5 MeV. We have reexamined the Co56 γ-ray spectrum using a Ge(Li)-NaI (Tl) coincidence-anticoincidence spectrometer. This study revealed five previously unreported γ rays with energies of 896, 1140.2, 1336, 1443.2, and 1461.9 keV, all of which could be assigned to transitions from levels already established in the Co56 decay. Other weak γ rays with energies of 2276.1, 2374.2, 2522.6, 3599.2, and 3612.5 keV have been confirmed and their intensities have been determined more accurately. A summary of the latest available data for the Co56 decay is presented in the form of weighted averages for γ-ray energies and intensities and an improved decay scheme. © 1969 The American Physical Society.
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页码:1111 / &
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