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ANGULAR DISTRIBUTION OF PROTONS FROM THE Co$sup 59$(d,p)Co$sup 60$ REACTION (thesis)

Technical Report ·
OSTI ID:4244423
;

The MIT-ONR electrostatic accelerator and broadrange magnetic spectrograph were used to investigate the Co/sup 59/(d,p)Co/sup 60/ reaction by bombarding a thin target of cobalt on Formvar with 6.0-Mev deuterons. An analysis of the proton groups for sixteen reaction angles between l0 and 110 degrees determined the angular distribution of the cross section and the Q-values for aixty levels of Co/sup 60/ up to 3.7-Mev excitation. The ground-level Q- value was determined to be 5.262 plus or minus 0.011 Mev. Some of the levels observed have not been previously reported, and the Q-values of the other levels are in agreement with those previously observed by (d,p) and (n, gamma ) reactions. One previously reported level at a Q of 2.659 Mev was not observed. The present values remove some small discrepancies between those of the (d,p) and (n, gamma ) reactions. From the angular distributions, the reaction was observed 10 proceed predominantly by stripping. They were compared with the predictions of Butier's stripping theory in order to assign values of l/sub n/, the orbital angular momentum of the captured neutron, to thirty-seven levels. It was observed that most of the distributions required superposition of curves corresponding to two values of 1/sub n/. Results obtained endorse the recenliy assigned values of J = 5/sup +/ for the ground level and J = 2/sup +/ for the metastable state, instead of the previously reported values of 4/sup +/ and 1/sup +/, respectively. (auth)

Research Organization:
Massachusetts Inst. of Tech., Cambridge
NSA Number:
NSA-13-020520
OSTI ID:
4244423
Report Number(s):
NP-7766
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ACCELERATORS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BUTLER THEORY
CAPTURE
COBALT
COBALT 59
COBALT 60
CROSS SECTIONS
DEUTERON BEAMS
ELECTROSTATIC GENERATORS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
IONIZATION
MAGNETIC FIELDS
MEASURED VALUES
METASTABLE STATES
MEV RANGE
MOMENTUM
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
ORBITS
PARITY
PHYSICS AND MATHEMATICS
PROTONS
Q- VALUE
SPECTRA
SPECTROMETERS
SPIN
STRIPPING
TARGETS