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Title: Neutron scattering and models: Silver

Abstract

Differential neutron elastic-scattering cross sections of elemental silver were measured from 1.5 {r_arrow} 10 MeV at {approx} 100 keV intervals up to 3 MeV, at {approx} 200 keV intervals from 3 {r_arrow} 4 MeV, and at {approx} 500 keV intervals above 4 MeV. At {le} 4 MeV the angular range of the measurements was {approx} 20{sup 0} {r_arrow} 160{sup 0} with 10 measured values below 3 MeV and 20 from 3 {r_arrow} 4 MeV at each incident energy. Above 4 MeV {ge} 40 scattering angles were used distributed between {approx} 17{sup 0} and 16{sup 0} All of the measured elastic distributions included some contributions due to inelastic scattering. Below 4 MeV the measurements determined cross sections for ten inelastically-scattered neutron groups corresponding to observed excitations of 328 {+-} 13, 419 {+-} 50, 748 {+-} 25, 908 {+-} 26, 115 {+-} 38, 1286 {+-} 25, 1507 {+-} 20, 1632 {+-} 30, 1835 {+-} 20 and 1944 {+-} 26 keV. All of these inelastic groups probably were composites of contributions from the two isotopes {sup 107}Ag and {sup 109}Ag. The experimental results were interpreted in terms of the spherical optical model and of rotational and vibrational coupled-channels models, and physical implications aremore » discussed. In particular, the neutron-scattering results are consistent with a ground-state rotational band with a quadrupole deformation {Beta}{sub 2} = 0.20 {+-} {approx} 10% for both of the naturally-occurring silver isotopes.« less

Authors:
 [1]
  1. Argonne National Lab., IL (United States)|[Univ. of Arizona, Tucson, AZ (United States)
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
395613
Report Number(s):
ANL/NDM-137
ON: DE97000530; TRN: 97:000129
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jul 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; SILVER 107 TARGET; NEUTRON REACTIONS; SILVER 109 TARGET; SCATTERING; DIFFERENTIAL CROSS SECTIONS; COUPLED CHANNEL THEORY; ENERGY DEPENDENCE; NUCLEAR DATA COLLECTIONS

Citation Formats

Smith, A.B. Neutron scattering and models: Silver. United States: N. p., 1996. Web. doi:10.2172/395613.
Smith, A.B. Neutron scattering and models: Silver. United States. doi:10.2172/395613.
Smith, A.B. Mon . "Neutron scattering and models: Silver". United States. doi:10.2172/395613. https://www.osti.gov/servlets/purl/395613.
@article{osti_395613,
title = {Neutron scattering and models: Silver},
author = {Smith, A.B.},
abstractNote = {Differential neutron elastic-scattering cross sections of elemental silver were measured from 1.5 {r_arrow} 10 MeV at {approx} 100 keV intervals up to 3 MeV, at {approx} 200 keV intervals from 3 {r_arrow} 4 MeV, and at {approx} 500 keV intervals above 4 MeV. At {le} 4 MeV the angular range of the measurements was {approx} 20{sup 0} {r_arrow} 160{sup 0} with 10 measured values below 3 MeV and 20 from 3 {r_arrow} 4 MeV at each incident energy. Above 4 MeV {ge} 40 scattering angles were used distributed between {approx} 17{sup 0} and 16{sup 0} All of the measured elastic distributions included some contributions due to inelastic scattering. Below 4 MeV the measurements determined cross sections for ten inelastically-scattered neutron groups corresponding to observed excitations of 328 {+-} 13, 419 {+-} 50, 748 {+-} 25, 908 {+-} 26, 115 {+-} 38, 1286 {+-} 25, 1507 {+-} 20, 1632 {+-} 30, 1835 {+-} 20 and 1944 {+-} 26 keV. All of these inelastic groups probably were composites of contributions from the two isotopes {sup 107}Ag and {sup 109}Ag. The experimental results were interpreted in terms of the spherical optical model and of rotational and vibrational coupled-channels models, and physical implications are discussed. In particular, the neutron-scattering results are consistent with a ground-state rotational band with a quadrupole deformation {Beta}{sub 2} = 0.20 {+-} {approx} 10% for both of the naturally-occurring silver isotopes.},
doi = {10.2172/395613},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jul 01 00:00:00 EDT 1996},
month = {Mon Jul 01 00:00:00 EDT 1996}
}

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