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High-resolution neutron capture cross sections in /sup 63/Cu and /sup 65/Cu. II. [KeV region]

Journal Article · · Phys. Rev., C; (United States)
; ; ;
Neutron capture cross sections in separated isotopes of copper (/sup 63/Cu and /sup 65/Cu) from a few keV to a few hundreds of keV were measured. From these measurements the capture yields of resonances were accurately determined, giving precise values of gGAMMA/sub n/ and GAMMA/sub ..gamma../ GAMMA/sub lambda/ up to a maximum neutron energy of 50 keV. For /sup 63/Cu one obtains a value of = 490 +- 30 meV, p-wave average level spacing /sub l=V = 0.495+- 0.026 keV, and strength function S/sub 1/ =(0.44+-0.07) x10/sup -4/ eV/sup -1///sup 2/. For /sup 65/Cu, one obtains a value for = 385+-20 meV, /sub l=/sub 1// = 0.685+-0.060 keV, and S/sub 1/ =(0.47+-0.08) x10/sup -4/ eV/sup -1///sup 2/. The corresponding s-wave mean level spacings for /sup 63/Cu and /sup 65/Cu are 1.04+-0.11 and 1.47 +-0.19 keV, respectively. Some few of the narrowest levels have been assumed formed by d waves.
Research Organization:
State University of New York at Albany, Albany, New York 12222
OSTI ID:
7228617
Journal Information:
Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:2; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651623 -- Nuclear Properties & Reactions
A=59-89
Experimental-- Energy Levels & Transitions-- (-1987)
651625* -- Nuclear Properties & Reactions
A=59-89
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CAPTURE
COPPER 63 TARGET
COPPER 64
COPPER 65 TARGET
COPPER 66
COPPER ISOTOPES
CROSS SECTIONS
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY SPECTRA
FUNCTIONS
HADRON REACTIONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
KEV RANGE
KEV RANGE 10-100
LEVEL WIDTHS
MINUTES LIVING RADIOISOTOPES
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
P WAVES
PARTIAL WAVES
RADIOISOTOPES
RESONANCE
S WAVES
SPECTRA
STRENGTH FUNCTIONS
TARGETS