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Anomalous electric dipole internal conversion

Citation

Hager, Ralph Stuart (1966) Anomalous electric dipole internal conversion. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:10052015-112145928

Abstract

Electric dipole internal conversion has been experimentally studied for several nuclei in the rare earth region. Anomalies in the conversion process have been interpreted in terms of nuclear structure effects. It was found that all the experimental results could be interpreted in terms of the j ∙ r type of penetration matrix element; the j ∙ ∇ type of penetration matrix element was not important. The ratio λ of the El j ∙ r penetration matrix element to the El gamma-ray matrix element was determined from the experiments to be:

Lu175,396 keV, λ = - 1000 ± 100;

282 keV, λ = 500 ± 100;

144 keV, λ = 500 ± 250;

Hf177, 321 keV λ = - 1400 ± 200;

208 keV λ = - 90 ± 40;

72 keV |λ| ≤ 650;

Gd155, 86 keV λ = - 150 ± 100;

Tm169, 63 keV λ = - 100 ± 100;

W182, 152 keV, λ = - 160 ±80;

67 keV, λ = - 100 ± 100.

Predictions for λ are made using the unified nuclear model.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Physics
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Boehm, Felix H.
Thesis Committee:
  • Unknown, Unknown
Defense Date:9 March 1966
Funders:
Funding AgencyGrant Number
CaltechUNSPECIFIED
Atomic Energy CommissionUNSPECIFIED
NSFUNSPECIFIED
Record Number:CaltechTHESIS:10052015-112145928
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:10052015-112145928
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9196
Collection:CaltechTHESIS
Deposited By: Leslie Granillo
Deposited On:07 Oct 2015 17:10
Last Modified:07 Oct 2015 17:10

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