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    Light yield in DarkSide-10: A prototype two-phase argon TPC for dark matter searches

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    Genre
    Journal Article
    Date
    2013-09-30
    Author
    Alexander, T
    Alton, D
    Arisaka, K
    Back, HO
    Beltrame, P
    Benziger, J
    Bonfini, G
    Brigatti, A
    Brodsky, J
    Cadonati, L
    Calaprice, F
    Candela, A
    Cao, H
    Cavalcante, P
    Chavarria, A
    Chepurnov, A
    Cline, D
    Cocco, AG
    Condon, C
    D'Angelo, D
    Davini, S
    De Haas, E
    Derbin, A
    Di Pietro, G
    Dratchnev, I
    Durben, D
    Empl, A
    Etenko, A
    Fan, A
    Fiorillo, G
    Fomenko, K
    Gabriele, F
    Galbiati, C
    Gazzana, S
    Ghag, C
    Ghiano, C
    Goretti, A
    Grandi, L
    Gromov, M
    Guan, M
    Guo, C
    Guray, G
    Hungerford, EV
    Ianni, A
    Ianni, A
    Kayunov, A
    Keeter, K
    Kendziora, C
    Kidner, S
    Kobychev, V
    Koh, G
    Korablev, D
    Korga, G
    Shields, E
    Li, P
    Loer, B
    Lombardi, P
    Love, C
    Ludhova, L
    Lukyanchenko, L
    Lund, A
    Lung, K
    Ma, Y
    Machulin, I
    Maricic, J
    Martoff, CJ
    Meng, Y
    Meroni, E
    Meyers, PD
    Mohayai, T
    Montanari, D
    Montuschi, M
    Mosteiro, P
    Mount, B
    Muratova, V
    Nelson, A
    Nemtzow, A
    Nurakhov, N
    Orsini, M
    Ortica, F
    Pallavicini, M
    Pantic, E
    Parmeggiano, S
    Parsells, R
    Pelliccia, N
    Perasso, L
    Perfetto, F
    Pinsky, L
    Pocar, A
    Pordes, S
    Ranucci, G
    Razeto, A
    Romani, A
    Rossi, N
    Saggese, P
    Saldanha, R
    Salvo, C
    Sands, W
    Seigar, M
    Semenov, D
    Show allShow less
    Subject
    Dark matter
    Argon
    Time projection chamber
    Light yield
    Photoelectron yield
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/5937
    
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    DOI
    10.1016/j.astropartphys.2013.08.004
    Abstract
    As part of the DarkSide program of direct dark matter searches using two-phase argon TPCs, a prototype detector with an active volume containing 10 kg of liquid argon, DarkSide-10, was built and operated underground in the Gran Sasso National Laboratory in Italy. A critically important parameter for such devices is the scintillation light yield, as photon statistics limits the rejection of electron-recoil backgrounds by pulse shape discrimination. We have measured the light yield of DarkSide-10 using the readily-identifiable full-absorption peaks from gamma ray sources combined with single-photoelectron calibrations using low-occupancy laser pulses. For gamma lines of energies in the range 122-1275 keV, we get light yields averaging 8.887±0.003(stat) ±0.444(sys) p.e./keVee. With additional purification, the light yield measured at 511 keV increased to 9.142±0.006(stat) p.e./keVee.
    Citation to related work
    Elsevier BV
    Has part
    Astroparticle Physics
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    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.34944/dspace/5919
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