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.

Light yield in DarkSide-10 : a prototype two-phase argon TPC for dark matter searches / T. Alexander, D. Alton, K. Arisaka, H.O. Back, P. Beltrame, J. Benziger, G. Bonfini, A. Brigatti, J. Brodsky, L. Cadonati, F. Calaprice, A. Candela, H. Cao, P. Cavalcante, A. Chavarria, A. Chepurnov, D. Cline, A.G. Cocco, C. Condon, D. D’Angelo, S. Davini, E. De Haas, A. Derbin, G. Di Pietro, I. Dratchnev, D. Durben, A. Empl, A. Etenko, A. Fan, G. Fiorillo, K. Fomenko, F. Gabriele, C. Galbiati, S. Gazzana, C. Ghag, C. Ghiano, A. Goretti, L. Grandi, M. Gromov, M. Guan, C. Guo, G. Guray, E.V. Hungerford, Al. Ianni, An. Ianni, A. Kayunov, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, E. Shields, P. Li, B. Loer, P. Lombardi, C. Love, L. Ludhova, L. Lukyanchenko, A. Lund, K. Lung, Y. Ma, I. Machulin, J. Maricic, C.J. Martoff, Y. Meng, E. Meroni, P.D. Meyers, T. Mohayai, D. Montanari, M. Montuschi, P. Mosteiro, B. Mount, V. Muratova, A. Nelson, A. Nemtzow, N. Nurakhov, M. Orsini, F. Ortica, M. Pallavicini, E. Pantic, S. Parmeggiano, R. Parsells, N. Pelliccia, L. Perasso, F. Perfetto, L. Pinsky, A. Pocar, S. Pordes, G. Ranucci, A. Razeto, A. Romani, N. Rossi, P. Saggese, R. Saldanha, C. Salvo, W. Sands, M. Seigar, D. Semenov, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Teymourian, J. Thompson, E. Unzhakov, R.B. Vogelaar, H. Wang, S. Westerdale, M. Wojcik, A. Wright, J. Xu, C. Yang, S. Zavatarelli, M. Zehfus, W. Zhong, G. Zuzel. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - 49(2013 Sep), pp. 44-51.

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

D. D’Angelo;E. Meroni;
2013

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.
English
dark matter ; Argon ; time projection chamber ; light yield ; photoelectron yield
Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
Articolo
Esperti anonimi
set-2013
Elsevier
49
44
51
8
Pubblicato
Periodico con rilevanza internazionale
info:eu-repo/semantics/article
Light yield in DarkSide-10 : a prototype two-phase argon TPC for dark matter searches / T. Alexander, D. Alton, K. Arisaka, H.O. Back, P. Beltrame, J. Benziger, G. Bonfini, A. Brigatti, J. Brodsky, L. Cadonati, F. Calaprice, A. Candela, H. Cao, P. Cavalcante, A. Chavarria, A. Chepurnov, D. Cline, A.G. Cocco, C. Condon, D. D’Angelo, S. Davini, E. De Haas, A. Derbin, G. Di Pietro, I. Dratchnev, D. Durben, A. Empl, A. Etenko, A. Fan, G. Fiorillo, K. Fomenko, F. Gabriele, C. Galbiati, S. Gazzana, C. Ghag, C. Ghiano, A. Goretti, L. Grandi, M. Gromov, M. Guan, C. Guo, G. Guray, E.V. Hungerford, Al. Ianni, An. Ianni, A. Kayunov, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, E. Shields, P. Li, B. Loer, P. Lombardi, C. Love, L. Ludhova, L. Lukyanchenko, A. Lund, K. Lung, Y. Ma, I. Machulin, J. Maricic, C.J. Martoff, Y. Meng, E. Meroni, P.D. Meyers, T. Mohayai, D. Montanari, M. Montuschi, P. Mosteiro, B. Mount, V. Muratova, A. Nelson, A. Nemtzow, N. Nurakhov, M. Orsini, F. Ortica, M. Pallavicini, E. Pantic, S. Parmeggiano, R. Parsells, N. Pelliccia, L. Perasso, F. Perfetto, L. Pinsky, A. Pocar, S. Pordes, G. Ranucci, A. Razeto, A. Romani, N. Rossi, P. Saggese, R. Saldanha, C. Salvo, W. Sands, M. Seigar, D. Semenov, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Teymourian, J. Thompson, E. Unzhakov, R.B. Vogelaar, H. Wang, S. Westerdale, M. Wojcik, A. Wright, J. Xu, C. Yang, S. Zavatarelli, M. Zehfus, W. Zhong, G. Zuzel. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - 49(2013 Sep), pp. 44-51.
none
Prodotti della ricerca::01 - Articolo su periodico
122
262
Article (author)
si
T. Alexander, D. Alton, K. Arisaka, H.O. Back, P. Beltrame, J. Benziger, G. Bonfini, A. Brigatti, J. Brodsky, L. Cadonati, F. Calaprice, A. Candela, H. Cao, P. Cavalcante, A. Chavarria, A. Chepurnov, D. Cline, A.G. Cocco, C. Condon, D. D’Angelo, S. Davini, E. De Haas, A. Derbin, G. Di Pietro, I. Dratchnev, D. Durben, A. Empl, A. Etenko, A. Fan, G. Fiorillo, K. Fomenko, F. Gabriele, C. Galbiati, S. Gazzana, C. Ghag, C. Ghiano, A. Goretti, L. Grandi, M. Gromov, M. Guan, C. Guo, G. Guray, E.V. Hungerford, Al. Ianni, An. Ianni, A. Kayunov, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, E. Shields, P. Li, B. Loer, P. Lombardi, C. Love, L. Ludhova, L. Lukyanchenko, A. Lund, K. Lung, Y. Ma, I. Machulin, J. Maricic, C.J. Martoff, Y. Meng, E. Meroni, P.D. Meyers, T. Mohayai, D. Montanari, M. Montuschi, P. Mosteiro, B. Mount, V. Muratova, A. Nelson, A. Nemtzow, N. Nurakhov, M. Orsini, F. Ortica, M. Pallavicini, E. Pantic, S. Parmeggiano, R. Parsells, N. Pelliccia, L. Perasso, F. Perfetto, L. Pinsky, A. Pocar, S. Pordes, G. Ranucci, A. Razeto, A. Romani, N. Rossi, P. Saggese, R. Saldanha, C. Salvo, W. Sands, M. Seigar, D. Semenov, M. Skorokhvatov, O. Smirnov, A. Sotnikov, S. Sukhotin, Y. Suvorov, R. Tartaglia, J. Tatarowicz, G. Testera, A. Teymourian, J. Thompson, E. Unzhakov, R.B. Vogelaar, H. Wang, S. Westerdale, M. Wojcik, A. Wright, J. Xu, C. Yang, S. Zavatarelli, M. Zehfus, W. Zhong, G. Zuzel
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