Correlated fission data measurements with DANCE and NEUANCE

Jandel, Marian; Baramsai, Baramsai; Bredeweg, Todd Allen; Couture, Aaron Joseph; Favalli, Andrea; Hayes, Anna Catherine; Ianakiev, Kiril Dimitrov; Iliev, Metodi L.; Kawano, Toshihiko; Mosby, Shea Morgan; Rusev, Gencho Yordanov; Stetcu, Ionel; Talou, Patrick; Ullmann, John Leonard; Vieira, David J.; Walker, Carrie Lynn; Wilhelmy, Jerry B.

doi:10.1016/j.nima.2017.10.097

Title: Correlated fission data measurements with DANCE and NEUANCE

Journal Article · Thu Nov 16 00:00:00 EST 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.10.097· OSTI ID:1417171

Jandel, Marian ^[1]; Baramsai, Baramsai ^[2];

^[3];

^[3]; Stetcu, Ionel ^[3]; Talou, Patrick ^[3]; Ullmann, John Leonard ^[3]; Vieira, David J. ^[3]; Walker, Carrie Lynn ^[3]; Wilhelmy, Jerry B. ^[3]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Massachusetts, Lowell, MA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); NASA Glenn Research Center, Brook Park, OH (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

To enhance the capabilities of the DANCE array, a new detector array NEUANCE was developed to enable simultaneous measurements of prompt fission neutrons and γ rays. NEUANCE was designed and constructed using 21 stilbene organic scintillator crystals. It was installed in the central cavity of the DANCE array. Signals from the 160 BaF₂ detectors of DANCE and the 21 detectors of NEUANCE were merged into a newly designed high-density high-throughput data acquisition system. The excellent pulse shape discrimination properties of stilbene enabled detection of neutrons with energy thresholds as low as 30–40 keVee. A fission reaction tagging method was developed using a NEUANCE γ-ray or neutron signal. The probability of detecting a neutron from the spontaneous fission of ²⁵²Cf using NEUANCE is 47%. New correlated data for prompt fission neutrons and prompt fission rays were obtained for ²⁵²Cf using this high detection efficiency experimental setup. In conclusion, average properties of prompt fission neutron emission as a function of prompt fission γ-ray quantities were also obtained, suggesting that neutron and γ-ray emission in fission are correlated.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC52-06NA25396; LANL20135009

OSTI ID:: 1417171

Alternate ID(s):: OSTI ID: 1549036

Report Number(s):: LA-UR-17-28463; TRN: US1801001

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 882, Issue C; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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References (16)

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Cited By (2)

Correlated prompt fission data in transport simulations Talou, P.; Vogt, R.; Randrup, J. The European Physical Journal A, Vol. 54, Issue 1 https://doi.org/10.1140/epja/i2018-12455-0	journal	January 2018
Correlated Prompt Fission Data in Transport Simulations Talou, P.; Vogt, R.; Randrup, J. arXiv https://doi.org/10.48550/arxiv.1710.00107	text	January 2017

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