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Title: Determination of (n,{gamma}) cross sections in the rare-earth region using the surrogate ratio method

Abstract

The surrogate ratio method was used to convert experimentally determined relative {gamma}-decay probabilities for excited {sup 171}Yb and {sup 161}Dy nuclei, populated using ({sup 3}He, {sup 3}He{sup '}) and ({sup 3}He, {alpha}) reactions, into neutron-induced {gamma}-decay cross sections in an equivalent neutron energy range of 165-465 keV. The relative {gamma}-decay probabilities were measured using the CACTUS array at the Oslo Cyclotron Laboratory and were found to agree with the ratio of neutron-induced {gamma}-decay cross sections for the same compound nuclei over the range of excitation energies measured. No significant entrance-channel effects on the extracted (n,{gamma}) cross sections were observed. The cross sections obtained using the surrogate ratio method were compared to directly measured neutron-capture cross sections and found to agree within the total estimated uncertainty over the range of equivalent neutron energies measured.

Authors:
; ; ; ; ; ;  [1]
  1. University of California, Berkeley, Department of Nuclear Engineering, Berkeley, California 94720-1730 (United States)
Publication Date:
OSTI Identifier:
21199435
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 78; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevC.78.064606; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CAPTURE; COMPOUND NUCLEI; CROSS SECTIONS; DYSPROSIUM 161; EXCITATION; GAMMA DECAY; HELIUM 3; KEV RANGE 100-1000; NEUTRON REACTIONS; NEUTRONS; NUCLEAR REACTIONS; OSLO CYCLOTRON; PROBABILITY; RARE EARTHS; YTTERBIUM 171

Citation Formats

Goldblum, B L, Prussin, S G, Agvaanluvsan, U, Bernstein, L A, Bleuel, D L, Younes, W, Guttormsen, M, Lawrence Livermore National Laboratory, Livermore, California 94551, and Department of Physics, University of Oslo, N-0316 Oslo. Determination of (n,{gamma}) cross sections in the rare-earth region using the surrogate ratio method. United States: N. p., 2008. Web. doi:10.1103/PHYSREVC.78.064606.
Goldblum, B L, Prussin, S G, Agvaanluvsan, U, Bernstein, L A, Bleuel, D L, Younes, W, Guttormsen, M, Lawrence Livermore National Laboratory, Livermore, California 94551, & Department of Physics, University of Oslo, N-0316 Oslo. Determination of (n,{gamma}) cross sections in the rare-earth region using the surrogate ratio method. United States. https://doi.org/10.1103/PHYSREVC.78.064606
Goldblum, B L, Prussin, S G, Agvaanluvsan, U, Bernstein, L A, Bleuel, D L, Younes, W, Guttormsen, M, Lawrence Livermore National Laboratory, Livermore, California 94551, and Department of Physics, University of Oslo, N-0316 Oslo. 2008. "Determination of (n,{gamma}) cross sections in the rare-earth region using the surrogate ratio method". United States. https://doi.org/10.1103/PHYSREVC.78.064606.
@article{osti_21199435,
title = {Determination of (n,{gamma}) cross sections in the rare-earth region using the surrogate ratio method},
author = {Goldblum, B L and Prussin, S G and Agvaanluvsan, U and Bernstein, L A and Bleuel, D L and Younes, W and Guttormsen, M and Lawrence Livermore National Laboratory, Livermore, California 94551 and Department of Physics, University of Oslo, N-0316 Oslo},
abstractNote = {The surrogate ratio method was used to convert experimentally determined relative {gamma}-decay probabilities for excited {sup 171}Yb and {sup 161}Dy nuclei, populated using ({sup 3}He, {sup 3}He{sup '}) and ({sup 3}He, {alpha}) reactions, into neutron-induced {gamma}-decay cross sections in an equivalent neutron energy range of 165-465 keV. The relative {gamma}-decay probabilities were measured using the CACTUS array at the Oslo Cyclotron Laboratory and were found to agree with the ratio of neutron-induced {gamma}-decay cross sections for the same compound nuclei over the range of excitation energies measured. No significant entrance-channel effects on the extracted (n,{gamma}) cross sections were observed. The cross sections obtained using the surrogate ratio method were compared to directly measured neutron-capture cross sections and found to agree within the total estimated uncertainty over the range of equivalent neutron energies measured.},
doi = {10.1103/PHYSREVC.78.064606},
url = {https://www.osti.gov/biblio/21199435}, journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 6,
volume = 78,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2008},
month = {Mon Dec 15 00:00:00 EST 2008}
}