Light yield in DarkSide-10: A prototype two-phase argon TPC for dark matter searches
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Journal ArticleDate
2013-09-30Author
Alexander, TAlton, 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
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http://hdl.handle.net/20.500.12613/5937
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10.1016/j.astropartphys.2013.08.004Abstract
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
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http://dx.doi.org/10.34944/dspace/5919