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SCATTERING OF FAST NEUTRONS FROM C$sup 12$ AND F$sup 1$$sup 9$

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
; ; ;
High-resolution totsl cross-section measurements were made in the vicinity of the neutron scattering resonance occurring in C/sup 12/ at (2.076 plus or minus 0.008)-Mev bombarding energy with a total width of 7 kev. These data, coupled with differential cross-section measurements in the same energy range, lead to the assignment of D/sub 5/2 to this state in C/sup 13/. Angular distributions of neutrons scattered from C/sup 12/ measured between 1.15 and 1.10 Mev were analyzed in terms of partial waves. The resulting phase shifts indicate that the D/sub 3/2 state occurring at 2.95 Mev has a width of 80 kev, while the D/ sub 3/2 state at 3.67 Mev has a width of 1.69 Mev. Total cross-section measurements for fluorine, having resolutions of 20 and70 kev, indicate the presence of resonances at 1.10 and 2.25 Mev, as well as some structure above 3 Mev not previously reported. Angular distributions were measured between 0.66 and 2.82 Mev. (auth)
Research Organization:
Oak Ridge National Lab., Tenn.
NSA Number:
NSA-12-006267
OSTI ID:
4331774
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 109; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ANGULAR DISTRIBUTION
CARBON 12
CARBON 13
CROSS SECTIONS
ENERGY LEVELS
ENERGY RANGE
FAST NEUTRONS
FLUORINE 19
MEASURED VALUES
NUCLEAR STRUCTURE
NUCLEAR THEORY
PHYSICS
QUANTUM MECHANICS
RESONANCE
SCATTERING
SPECTRAL SHIFT