Levels of the odd-odd nucleus /sup 118/Sb below 1200 KeV

Thesis/Dissertation · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6668736

Chaffee, W B

As part of a continued interest in exploring the residual p-n interaction by examining the properties of odd-odd nuclei in the region of the Z = 50 closed shell, a study was undertaken of the nucleus /sup 118/Sb. Two basic experimental approaches were used: the on line (p,n..gamma..) reaction on /sup 118/Sn using Ge(Li) detectors to study the emitted ..gamma.. rays; and the (/sup 3/He,t) reaction on /sup 118/sn usng the Enge splitpole spectrograph of the Michigan State University Cyclotron Laboratory. Curves of excitation and excitation thresholds were obtained for sixteen of the most prominent low-lying ..gamma.. rays by measuring ..gamma..-ray intensities as a function of increasing proton beam energy. Using (p,n..gamma gamma..) coincidence experiments with two Ge(Li) detectors, fifty-six ..gamma.. rays were identified as being in coincidence and associated with the energy levels of ..cap alpha../sup 18/Sb. Observing the excitations up to the highest proton beam energy used (6.20 MeV), one hundred and four ..gamma.. rays were identified as being associated with /sup 118/Sb. From the (/sup 3/He,t) reaction experiments, nine unambiguous states have been identified, with evidence for tentative angular momentum transfers for seven of them. By comparing the simple shell-model configurations, the Brennan and Bernstein coupling rules, and the angular momentum transfers from the (/sup 3/He,t) experiments, tentative spin assignments have been made for six of the lower lying levels.

• Research Organization: Michigan State Univ., East Lansing (USA)
• OSTI ID: 6668736
• Country of Publication: United States
• Language: English

Related Subjects

651723* -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
651725 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ANGULAR MOMENTUM TRANSFER
ANTIMONY 118
ANTIMONY 118 TARGET
ANTIMONY ISOTOPES
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
DATA
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
EXPERIMENTAL DATA
GAMMA SPECTRA
HADRON REACTIONS
HELIUM 3 REACTIONS
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
MEV RANGE
MEV RANGE 01-10
MINUTES LIVING RADIOISOTOPES
MOMENTUM TRANSFER
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
ODD-ODD NUCLEI
PARTICLE PROPERTIES
PROTON REACTIONS
RADIOISOTOPES
SPECTRA
SPIN
TARGETS