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Title: Capture and fission with DANCE and NEUANCE

A summary of the current and future experimental program at DANCE is presented. Measurements of neutron capture cross sections are planned for many actinide isotopes with the goal to reduce the present uncertainties in nuclear data libraries. Detailed studies of capture gamma rays in the neutron resonance region will be performed in order to derive correlated data on the de-excitation of the compound nucleus. New approaches on how to remove the DANCE detector response from experimental data and retain the correlations between the cascade gamma rays are presented. Studies on 235U are focused on quantifying the population of short-lived isomeric states in 236U after neutron capture. For this purpose, a new neutron detector array NEUANCE is under construction. It will be installed in the central cavity of the DANCE array and enable the highly efficient tagging of fission and capture events. In addition, developments of fission fragment detectors are also underway to expand DANCE capabilities to measurements of fully correlated data on fission observables.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-14-28167
Journal ID: ISSN 1434-6001; PII: 347
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 51; Journal Issue: 12; Journal ID: ISSN 1434-6001
Publisher:
Springer
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1239289

Jandel, M., Baramsai, B., Bond, E., Rusev, G., Walker, C., Bredeweg, T. A., Chadwick, M. B., Couture, A., Fowler, M. M., Hayes, A., Kawano, T., Mosby, S., Stetcu, I., Taddeucci, T. N., Talou, P., Ullmann, J. L., Vieira, D. J., and Wilhelmy, J. B.. Capture and fission with DANCE and NEUANCE. United States: N. p., Web. doi:10.1140/epja/i2015-15179-7.
Jandel, M., Baramsai, B., Bond, E., Rusev, G., Walker, C., Bredeweg, T. A., Chadwick, M. B., Couture, A., Fowler, M. M., Hayes, A., Kawano, T., Mosby, S., Stetcu, I., Taddeucci, T. N., Talou, P., Ullmann, J. L., Vieira, D. J., & Wilhelmy, J. B.. Capture and fission with DANCE and NEUANCE. United States. doi:10.1140/epja/i2015-15179-7.
Jandel, M., Baramsai, B., Bond, E., Rusev, G., Walker, C., Bredeweg, T. A., Chadwick, M. B., Couture, A., Fowler, M. M., Hayes, A., Kawano, T., Mosby, S., Stetcu, I., Taddeucci, T. N., Talou, P., Ullmann, J. L., Vieira, D. J., and Wilhelmy, J. B.. 2015. "Capture and fission with DANCE and NEUANCE". United States. doi:10.1140/epja/i2015-15179-7. https://www.osti.gov/servlets/purl/1239289.
@article{osti_1239289,
title = {Capture and fission with DANCE and NEUANCE},
author = {Jandel, M. and Baramsai, B. and Bond, E. and Rusev, G. and Walker, C. and Bredeweg, T. A. and Chadwick, M. B. and Couture, A. and Fowler, M. M. and Hayes, A. and Kawano, T. and Mosby, S. and Stetcu, I. and Taddeucci, T. N. and Talou, P. and Ullmann, J. L. and Vieira, D. J. and Wilhelmy, J. B.},
abstractNote = {A summary of the current and future experimental program at DANCE is presented. Measurements of neutron capture cross sections are planned for many actinide isotopes with the goal to reduce the present uncertainties in nuclear data libraries. Detailed studies of capture gamma rays in the neutron resonance region will be performed in order to derive correlated data on the de-excitation of the compound nucleus. New approaches on how to remove the DANCE detector response from experimental data and retain the correlations between the cascade gamma rays are presented. Studies on 235U are focused on quantifying the population of short-lived isomeric states in 236U after neutron capture. For this purpose, a new neutron detector array NEUANCE is under construction. It will be installed in the central cavity of the DANCE array and enable the highly efficient tagging of fission and capture events. In addition, developments of fission fragment detectors are also underway to expand DANCE capabilities to measurements of fully correlated data on fission observables.},
doi = {10.1140/epja/i2015-15179-7},
journal = {European Physical Journal. A},
number = 12,
volume = 51,
place = {United States},
year = {2015},
month = {12}
}