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Some studies in Beta-Gamma and Gamma-Gamma-Angular correlation Darby, Edsel Kenneth
Abstract
The beta-gamma angular correlation for Sb¹²⁴ has been measured as a function of the beta particle energy in the range from 0.82 Mev to the end of the beta particle spectrum (2.4 Mev). As a beta particle spectrometer, use was made of a twelve channel kicksorter and a thick crystal beta particle scintillation counter. This was connected in coincidence with a gamma ray scintillation counter. Accordingly, the beta gamma coincidence counting rate W(θ,E), as a function of the angle θ between the counters, and the energy E of the beta particles, was observed. The differential angular correlation coefficient: a(E)=[formula omitted] was found to vary smoothly from -0.17 at 1.0 Mev to -0.44 at the end of the beta particle spectrum. When a(E) is integrated, numerically, over all beta particle energies greater than 0.82 Mev., the value of the integrated angular correlation coefficient a = -0.24 ± 0.02 was found. Direct measurements of the value of the integrated angular correlation coefficient were also performed, and the relation to the above value of a considered. An attempt has been made to interpret these results in terms of the angular momenta of the particles emitted, using the theory developed by Falkoff and Uhlenbeck. Experiments on the gamma-gamma angular correlation of Co⁶⁰ and Sc⁴⁶ performed with the same apparatus are in agreement with the previous results of other workers.
Item Metadata
Title |
Some studies in Beta-Gamma and Gamma-Gamma-Angular correlation
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1952
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Description |
The beta-gamma angular correlation for Sb¹²⁴ has been measured as a function of the beta particle energy in the range from 0.82 Mev to the end of the beta particle spectrum (2.4 Mev). As a beta particle spectrometer, use was made of a twelve channel kicksorter and a thick crystal beta particle scintillation counter. This was connected in coincidence with a gamma ray scintillation counter. Accordingly, the beta gamma coincidence counting rate W(θ,E), as a function of the angle θ between the counters, and the energy E of the beta particles, was observed. The differential angular correlation coefficient:
a(E)=[formula omitted] was found to vary smoothly from -0.17 at 1.0 Mev to -0.44 at the end of the beta particle spectrum. When a(E) is integrated, numerically, over all beta particle energies greater than 0.82 Mev., the value of the integrated angular correlation coefficient a = -0.24 ± 0.02 was found. Direct measurements of the value of the integrated angular correlation coefficient were also performed, and the relation to the above value of a considered.
An attempt has been made to interpret these results in terms of the angular momenta of the particles emitted, using the theory developed by Falkoff and Uhlenbeck. Experiments on the gamma-gamma angular correlation of Co⁶⁰ and Sc⁴⁶ performed with the same apparatus are in agreement with the previous results of other workers.
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Genre | |
Type | |
Language |
eng
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Date Available |
2012-03-05
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0085825
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.