SHAPE OF BETA SPECTRA OF ONCE FORBIDDEN TRANSITIONS IN THE DECAYS OF Ga$sup 72$, La$sup 140$, Eu$sup 152$, Eu$sup 154$, AND Sb$sup 12$$sup 4$
Abstract
Magnetic spectrometer studies were made on the beta spectra of Ga/sup 72/ , La/sup 140/, E/sup 152/, Eu/sup 154/, and Sb/sup 124/. Th e highest energy beta group of each of these transitions has an abnormally long comparative half life and probably is a once forbidden decay from a 3-- initial state to a 2+ final state. The highest energy beta spectrum was found to have a nonstatistical, nonunique shape. On the assumption that the B/sub ij/ matrix element dominates the decay, the experimental shape factors were fitted empirically by C = q/sup 2/ + to 15, 10, 5, 20, and 15 for Ga/sup 72/, La/sup 140/ , Eu/sup 152/, Eu/sup 154/, and Sb/sup 124/, respectively. (auth)
- Authors:
- Publication Date:
- Research Org.:
- Indiana Univ., Bloomington
- OSTI Identifier:
- 4149173
- NSA Number:
- NSA-14-023611
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
- Additional Journal Information:
- Journal Volume: Vol: 119; Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
- Subject:
- PHYSICS; ANTIMONY 124; BETA DECAY; BETA SPECTROMETERS; ENERGY LEVELS; EUROPIUM 152; EUROPIUM 154; GALLIUM 72; HALF-LIFE; LANTHANUM 140; MAGNETS; MATRICES; MEASURED VALUES; NUMERICALS; PARITY; SPECTRA; SPIN; TRANSIENTS
Citation Formats
Langer, L M, and Smith, D R. SHAPE OF BETA SPECTRA OF ONCE FORBIDDEN TRANSITIONS IN THE DECAYS OF Ga$sup 72$, La$sup 140$, Eu$sup 152$, Eu$sup 154$, AND Sb$sup 12$$sup 4$. Country unknown/Code not available: N. p., 1960.
Web. doi:10.1103/PhysRev.119.1308.
Langer, L M, & Smith, D R. SHAPE OF BETA SPECTRA OF ONCE FORBIDDEN TRANSITIONS IN THE DECAYS OF Ga$sup 72$, La$sup 140$, Eu$sup 152$, Eu$sup 154$, AND Sb$sup 12$$sup 4$. Country unknown/Code not available. https://doi.org/10.1103/PhysRev.119.1308
Langer, L M, and Smith, D R. 1960.
"SHAPE OF BETA SPECTRA OF ONCE FORBIDDEN TRANSITIONS IN THE DECAYS OF Ga$sup 72$, La$sup 140$, Eu$sup 152$, Eu$sup 154$, AND Sb$sup 12$$sup 4$". Country unknown/Code not available. https://doi.org/10.1103/PhysRev.119.1308.
@article{osti_4149173,
title = {SHAPE OF BETA SPECTRA OF ONCE FORBIDDEN TRANSITIONS IN THE DECAYS OF Ga$sup 72$, La$sup 140$, Eu$sup 152$, Eu$sup 154$, AND Sb$sup 12$$sup 4$},
author = {Langer, L M and Smith, D R},
abstractNote = {Magnetic spectrometer studies were made on the beta spectra of Ga/sup 72/ , La/sup 140/, E/sup 152/, Eu/sup 154/, and Sb/sup 124/. Th e highest energy beta group of each of these transitions has an abnormally long comparative half life and probably is a once forbidden decay from a 3-- initial state to a 2+ final state. The highest energy beta spectrum was found to have a nonstatistical, nonunique shape. On the assumption that the B/sub ij/ matrix element dominates the decay, the experimental shape factors were fitted empirically by C = q/sup 2/ + to 15, 10, 5, 20, and 15 for Ga/sup 72/, La/sup 140/ , Eu/sup 152/, Eu/sup 154/, and Sb/sup 124/, respectively. (auth)},
doi = {10.1103/PhysRev.119.1308},
url = {https://www.osti.gov/biblio/4149173},
journal = {Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D},
number = ,
volume = Vol: 119,
place = {Country unknown/Code not available},
year = {Mon Aug 15 00:00:00 EDT 1960},
month = {Mon Aug 15 00:00:00 EDT 1960}
}
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