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ISOMERIC STATE OF Sn$sup 115$ EXCITED BY THE In$sup 115$(p,n) REACTION

Technical Report ·
OSTI ID:4108269
; ; ; ;
Using a pulsed beam technique, a short-lived isomeric state of Sn/sup 115/(T/sub 1/2/, = 159 plus or minus 1 mu sec) was excited; and its decay properties were investigated. Three gamma-rays of 107-, 120-, and 500-kev energy of the same half life were found, indicating that the isomeric state decays by a triple cascade. The last two gamma rays were coincident. K-shell and total internal conversion coefficients were determined for the 107- and 120-kev transitions by measuring the yields of both singles and gamma-gamma coincidence spectra. The values obtained are consistent with an M2 transition of 107-kev and an E2 transition of l20-kev energy. A scheme for the first excited states of Sn/ sup 115/ is proposed, and a comparison with the pairing plus quadrupole force calculation of Kisslinger and Sorensen is made. (auth)
Research Organization:
Academia R.P.R. Institutual de Fizica Atomica, Bucharest
NSA Number:
NSA-18-007681
OSTI ID:
4108269
Report Number(s):
NP-13415
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

BINDING ENERGY
COINCIDENCE METHODS
DECAY
ENERGY LEVELS
EXCITATION
GAMMA RADIATION
INTERNAL CONVERSION
ISOMERS
LIFETIME
MEASURED VALUES
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUMERICALS
PHYSICS
PROTON BEAMS
PULSES
QUADRUPOLES
SCATTERING
SHELL MODELS
SPECTRA
TIN 115