Fission-fragment detector for DANCE based on thin scintillating films

Journal Article · Thu Oct 01 00:00:00 EDT 2015 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2015.09.078· OSTI ID:1457253

Rusev, Gencho Yordanov  ^[1]; Roman, Audrey Rae ^[1]; Daum, Jaimie Kay ^[2]; Springs, Rebecca Kristien ^[2]; Bond, Evelyn M.  ^[1]; Jandel, Marian ^[1]; Baramsai, Bayarbadrakh  ^[1]; Bredeweg, Todd Allen  ^[1]; Couture, Aaron Joseph  ^[1]; Favalli, Andrea  ^[1]; Ianakiev, Kiril Dimitrov  ^[1]; Iliev, Metodi  ^[1]; Mosby, Shea Morgan  ^[1]; Ullmann, John Leonard  ^[1]; Walker, Carrie Lynn ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Nevada, Las Vegas, NV (United States)

We report a fission-fragment detector based on thin scintillating films has been built to serve as a trigger/veto detector in neutron-induced fission measurements at DANCE. The fissile material is surrounded by scintillating films providing 4π detection of the fission fragments. The scintillation photons were registered with silicon photomultipliers. A measurement of the ²³⁵U (n,f) reaction with this detector at DANCE revealed a correct time-of-flight spectrum and provided an estimate for the efficiency of the prototype detector of 11.6(7)%. Finally, design and test measurements with the detector are described.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC52-06NA25396; LANL20135009
• OSTI ID: 1457253
• Alternate ID(s): OSTI ID: 1247191
• Report Number(s): LA-UR-15-25398; TRN: US1901336
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 804, Issue C; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
Thin scintillating films
Neutron-induced fission
Fission-fragment detector