Fast neutron capture by /sup 13/C

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5983615

Jensen, M J

The /sup 13/C(n,..gamma../sup 0/)/sup 14/C reaction yield was measured at 90/sup 0/ for neutron lab (excitation) energies from 5.6 (13.4) to 14 (21.2) MeV. Angular distributions of cross section and analyzing power were measured at five energies, E/sub n/ = 7.75, 9.2, 10.2, 11 and 12 MeV. The cross section was measured over an angular range of 30/sup 0/ to 35/sup 0/ to 150/sup 0/. The analyzing power was measured over an angular range of 45 to 140/sup 0/. The target sample consisted of 32.4 g of 96.4% isotopically enriched /sup 13/C powder. The finite-geometry corrections were applied to the data. The angular distributions were expanded in terms of Legendre functions. They were also analyzed in terms of E1-E2 and E1-E2-M1 transition matrix elements. Existing shell model calculations are in good agreement with the mean energy and standard deviation of the T = 0 component of the dipole absorptive strength distribution. A direct-semidirect model fit to the data suggests the presence of an isoscalar E2 resonance.

• Research Organization: North Carolina State Univ., Raleigh (USA)
• OSTI ID: 5983615
• Country of Publication: United States
• Language: English

Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CAPTURE
CARBON 13 TARGET
CARBON 14
CARBON ISOTOPES
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
MASSLESS PARTICLES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NEUTRON REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PHOTONS
RADIOISOTOPES
SHELL MODELS
TARGETS
YEARS LIVING RADIOISOTOPES