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A Rn220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the Pb212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn222. Using the delayed coincidence of Rn220-Po216, we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po212, t1/2=(293.9±(1.0)stat±(0.6)sys) ns.

Results from a calibration of XENON100 using a source of dissolved radon-220

Aprile, E.;Aalbers, J.;Agostini, F.;Alfonsi, M.;Amaro, F. D.;Anthony, M.;Arneodo, F.;Barrow, P.;Baudis, L.;Bauermeister, B.;Benabderrahmane, M. L.;Berger, T.;Breur, P. A.;Brown, A.;Brown, E.;Bruenner, S.;Bruno, G.;Budnik, R.;Bütikofer, L.;Calvén, J.;Cardoso, J. M. R.;Cervantes, M.;Cichon, D.;Coderre, D.;Colijn, A. P.;Conrad, J.;Cussonneau, J. P.;Decowski, M. P.;De Perio, P.;Di Gangi, P.;Di Giovanni, A.;Diglio, S.;Duchovni, E.;Eurin, G.;Fei, J.;Ferella, A. D.;Fieguth, A.;Franco, D.;Fulgione, W.;Gallo Rosso, A.;Galloway, M.;Gao, F.;Garbini, M.;Geis, C.;Goetzke, L. W.;Grandi, L.;Greene, Z.;Grignon, C.;Hasterok, C.;Hogenbirk, E.;Itay, R.;Kaminsky, B.;Kessler, G.;Kish, A.;Landsman, H.;Lang, R. F.;Lellouch, D.;Levinson, L.;Le Calloch, M.;Lin, Q.;Lindemann, S.;Lindner, M.;Lopes, J. A. M.;Manfredini, A.;Maris, I.;Marrodán Undagoitia, T.;Masbou, J.;MASSOLI, FABIO VALERIO;Masson, D.;Mayani, D.;Meng, Y.;Messina, M.;Micheneau, K.;Miguez, B.;Molinario, A.;Murra, M.;Naganoma, J.;Ni, K.;Oberlack, U.;Orrigo, S. E. A.;Pakarha, P.;Pelssers, B.;Persiani, R.;Piastra, F.;Pienaar, J.;Piro, M. C.;Plante, G.;Priel, N.;Rauch, L.;Reichard, S.;Reuter, C.;Rizzo, A.;Rosendahl, S.;Rupp, N.;Saldanha, R.;Dos Santos, J. M. F.;SARTORELLI, GABRIELLA;Scheibelhut, M.;Schindler, S.;Schreiner, J.;Schumann, M.;Scotto Lavina, L.;SELVI, MARCO;Shagin, P.;Shockley, E.;Silva, M.;Simgen, H.;Sivers, M. V.;Stein, A.;Thers, D.;Tiseni, A.;Trinchero, G.;Tunnell, C.;Upole, N.;Wang, H.;Wei, Y.;Weinheimer, C.;Wulf, J.;Ye, J.;Zhang, Y.

2017

Abstract

A Rn220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the Pb212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn222. Using the delayed coincidence of Rn220-Po216, we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po212, t1/2=(293.9±(1.0)stat±(0.6)sys) ns.

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Scheda completa (DC)

	Anno
	
			2017
		
	Rivista
	
			PHYSICAL REVIEW D
		
	Codice DOI
	
			https://dx.doi.org/10.1103/PhysRevD.95.072008
		
	Tutti gli autori
	
			Aprile, E.; Aalbers, J.; Agostini, F.; Alfonsi, M.; Amaro, F.D.; Anthony, M.; Arneodo, F.; Barrow, P.; Baudis, L.; Bauermeister, B.; Benabderrahmane, M.L.; Berger, T.; Breur, P.A.; Brown, A.; Brown, E.; Bruenner, S.; Bruno, G.; Budnik, R.; Bütikofer, L.; Calvén, J.; Cardoso, J.M.R.; Cervantes, M.; Cichon, D.; Coderre, D.; Colijn, A.P.; Conrad, J.; Cussonneau, J.P.; Decowski, M.P.; De Perio, P.; Di Gangi, P.; Di Giovanni, A.; Diglio, S.; Duchovni, E.; Eurin, G.; Fei, J.; Ferella, A.D.; Fieguth, A.; Franco, D.; Fulgione, W.; Gallo Rosso, A.; Galloway, M.; Gao, F.; Garbini, M.; Geis, C.; Goetzke, L.W.; Grandi, L.; Greene, Z.; Grignon, C.; Hasterok, C.; Hogenbirk, E.; Itay, R.; Kaminsky, B.; Kessler, G.; Kish, A.; Landsman, H.; Lang, R.F.; Lellouch, D.; Levinson, L.; Le Calloch, M.; Lin, Q.; Lindemann, S.; Lindner, M.; Lopes, J.A.M.; Manfredini, A.; Maris, I.; Marrodán Undagoitia, T.; Masbou, J.; Massoli, F.V.; Masson, D.; Mayani, D.; Meng, Y.; Messina, M.; Micheneau, K.; Miguez, B.; Molinario, A.; Murra, M.; Naganoma, J.; Ni, K.; Oberlack, U.; Orrigo, S.E.A.; Pakarha, P.; Pelssers, B.; Persiani, R.; Piastra, F.; Pienaar, J.; Piro, M.-C.; Plante, G.; Priel, N.; Rauch, L.; Reichard, S.; Reuter, C.; Rizzo, A.; Rosendahl, S.; Rupp, N.; Saldanha, R.; Dos Santos, J.M.F.; Sartorelli, G.; Scheibelhut, M.; Schindler, S.; Schreiner, J.; Schumann, M.; Scotto Lavina, L.; Selvi, M.; Shagin, P.; Shockley, E.; Silva, M.; Simgen, H.; Sivers, M.V.; Stein, A.; Thers, D.; Tiseni, A.; Trinchero, G.; Tunnell, C.; Upole, N.; Wang, H.; Wei, Y.; Weinheimer, C.; Wulf, J.; Ye, J.; Zhang, Y.
		
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/599371

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