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    Performance of a segmented 6Li-loaded liquid scintillator detector for the PROSPECT experiment

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    1805.09245v2.pdf
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    Genre
    Pre-print
    Date
    2018-06-29
    Author
    Ashenfelter, J
    Balantekin, AB
    Band, HR
    Bass, CD
    Bergeron, DE
    Berish, D
    Bowden, NS
    Brodsky, JP
    Bryan, CD
    Telles, AB
    Cherwinka, JJ
    Classen, T
    Commeford, K
    Conant, A
    Davee, D
    Deichert, G
    Diwan, MV
    Dolinski, MJ
    Erickson, A
    Foust, BT
    Gaison, JK
    Galindo-Uribarri, A
    Gilje, K
    Hackett, B
    Han, K
    Hans, S
    Hansell, A
    Heeger, KM
    Heffron, B
    Insler, J
    Jaffe, DE
    Jones, D
    Kyzylova, O
    Lane, CE
    Langford, TJ
    Larosa, J
    Littlejohn, BR
    Lopez, F
    Caicedo, DAM
    Matta, J
    McKeown, RD
    Mendenhall, MP
    Minock, J
    Mueller, PE
    Mumm, HP
    Napolitano, J
    Neilson, R
    Nikkel, JA
    Norcini, D
    Nour, S
    Pushin, DA
    Qian, X
    Romero-Romero, E
    Rosero, R
    Surukuchi, PT
    Trinh, C
    Tyra, MA
    Wagner, JM
    White, C
    Wilhelmi, J
    Wise, T
    Yeh, M
    Yen, YR
    Zhang, A
    Zhang, C
    Zhang, X
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    Subject
    Liquid detectors
    Neutrino detectors
    Neutron detectors (cold, thermal, fast neutrons)
    Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/4622
    
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    DOI
    10.1088/1748-0221/13/06/P06023
    Abstract
    © 2018 IOP Publishing Ltd and Sissa Medialab. This paper describes the design and performance of a 50 liter, two-segment 6Li-loaded liquid scintillator detector that was designed and operated as prototype for the PROSPECT (Precision Reactor Oscillation and Spectrum) Experiment. The two-segment detector was constructed according to the design specifications of the experiment. It features low-mass optical separators, an integrated source and optical calibration system, and materials that are compatible with the 6Li-doped scintillator developed by PROSPECT. We demonstrate a high light collection of 850±20 PE/MeV, an energy resolution of σ = 4.0±0.2% at 1 MeV, and efficient pulse-shape discrimination of low dE/dx (electronic recoil) and high dE/dx (nuclear recoil) energy depositions. An effective scintillation attenuation length of 85±3 cm is measured in each segment. The 0.1% by mass concentration of 6Li in the scintillator results in a measured neutron capture time of τ = 42.8±0.2 μs. The long-term stability of the scintillator is also discussed. The detector response meets the criteria necessary for achieving the PROSPECT physics goals and demonstrates features that may find application in fast neutron detection.
    Citation to related work
    IOP Publishing
    Has part
    Journal of Instrumentation
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    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.34944/dspace/4604
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