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Technical notes. Measurement of cross sections for the /sup 7/Li(n, n'. gamma. )/sup 7/Li reaction from 0. 57 to 4 MeV

Journal Article · · Nucl. Sci. Eng.; (United States)
OSTI ID:7342197
Cross section ratios for production of the 0.478-MeV gamma ray by the /sup 7/Li(n,n'gamma)/sup 7/Li reaction relative to fast-neutron fission of /sup 235/U have been measured from 0.57 to 4 MeV with an estimated error of +-8 percent. The measurements were made using a shielded Ge(Li) detector, a fission detector, and time-of-flight techniques. The measured ratios and ENDF/B-IV fission cross sections were used to compute cross sections for the /sup 7/Li(n,n'gamma)/sup 7/Li reaction. These values are compared with corresponding reported experimental values and with the ENDF/B-IV evaluation for this reaction. The available data tend to fall into two distinct groups that disagree by as much as 25 percent at some energies. The results of the present work are consistent with the group that favors smaller cross sections at most energies.
Research Organization:
Argonne National Lab., IL
OSTI ID:
7342197
Journal Information:
Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 61:4; ISSN NSENA
Country of Publication:
United States
Language:
English