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GAMMA TRANSITION PROBABILITIES AND THE AUGER EFFECT IN THE /cap beta/-DECAY OF Xe$sup 13$$sup 3$

Journal Article · · Arkiv Fysik
OSTI ID:4827766
;
Decay of Xe/sup 133/ is studied in detail using scintillation beta - spectrometric techniques. The 81.0, 160.5, 302, and 382 kev gamma transitions in Cs/sup 133/ are detected in the gamma spectrum and their intensity ratios determined to be 1, 1.09 x 10/sup -3/ 1.23 x 10/sup -4/, and 6.2 x 10/sup -5/. In addition the 79.6-kev transition from the second excited level of Cs/sup 133/ is observed in the internal conversion spectrum, as well as in the gamma - coincidence spectrum, and the total branching ratio to this level is determined. The K/L/sub I/L/sub II//L/sub III//M/N conversion ratios of the 8l.0-kev transition are determined. The K conversion coefficient of this transition is remeasured and found to be 1.39 plus or minus 0.06. The half life of Xe/sup 133m/ is determined to be 54.24 plus or minus 0.40 hours. The decay scheme of Xe/sup 133/ is discussed. Nuclear structure effects on the conversion of the M1 lforbidden 81-kev transition are considered according to the theory of Church and Weneser. The KLL, KLX and KXY Auger spectra of Cs are studied and the results are compared to the theory of Asaad and Burhop. A brief discussion of the post- acceleration technique used for the detection of low energy electrons is given in an appendix in connection with the measured L Auger spectrum. (auth)
Research Organization:
Nobel Inst. of Physics, Stockholm
NSA Number:
NSA-16-003678
OSTI ID:
4827766
Journal Information:
Arkiv Fysik, Journal Name: Arkiv Fysik Vol. Vol: 20
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

AUGER EFFECT
BETA DECAY
BETA SPECTROMETERS
BRANCHING RATIO
CESIUM 133
DECAY
ELECTRONS
ENERGY LEVELS
EXCITATION
GAMMA RADIATION
HALF-LIFE
INTERNAL CONVERSION
ISOMERS
MEASURED VALUES
NUCLEAR MODELS
NUCLEAR STRUCTURE
PHYSICS
PROBABILITY
SCINTILLATION COUNTERS
SPECTRA
STATISTICS
TRANSIENTS
XENON 133