Published June 1930
| public
Journal Article
Open
The absorption coefficient of hard gamma-rays
- Creators
- Chao, C. Y.
Chicago
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Abstract
The relation between the frequency of hard radiations and the absorption coefficient is not experimentally well established at the present time. In order to obtain definite information it is necessary to use a radiation with high homogeneity. γ-Rays from ThC" are found to fulfill this requirement. Investigations of the absorption coefficient of these rays have been made by Russell and Soddy,(1) and Rutherford and Richardson,(2) almost 20 years ago before the modem technique of sensitive current measurement was developed.
Additional Information
Copyright © 1930 by the National Academy of Sciences. Communicated May 15, 1930. I should like to express my gratitude to Professor R. A. Millikan and Professor I. S. Bowen for the suggestion of this experiment and their help in carrying it through, and also to Dr. H. N. McCoy who helped with the preparation of the Radio-Thorium.Files
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Additional details
- Eprint ID
- 5756
- Resolver ID
- CaltechAUTHORS:CHApnas30
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2006-11-01Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field