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Ionization and scintillation response of high-pressure xenon gas to alpha particles

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Ionization and scintillation response of high-pressure xenon gas to alpha particles

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dc.contributor.author	Álvarez Puerta, Vicente
dc.contributor.author	Cárcel García, Sara
dc.contributor.author	Cervera Villanueva, Anselmo
dc.contributor.author	Díaz Medina, José
dc.contributor.author	Ferrario, Paola
dc.contributor.author	Gil Ortiz, Alejandro
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Laing, Andrew
dc.contributor.author	Liubarsky, Igor
dc.contributor.author	Lorca Galindo, David
dc.contributor.author	Martín-Albo Simón, Justo
dc.contributor.author	Monrabal Capilla, Francesc
dc.contributor.author	Muñoz Vidal, J.
dc.contributor.author	Nebot Guinot, Miquel
dc.contributor.author	Rodríguez Samaniego, Javier
dc.contributor.author	Serra Díaz-Cano, Luis
dc.contributor.author	Simón Estévez, Ander
dc.contributor.author	Sorel, Michel
dc.contributor.author	Yahlali Haddou, Nadia
dc.date.accessioned	2013-11-18T12:26:04Z
dc.date.available	2013-11-18T12:26:04Z
dc.date.issued	2013
dc.identifier.citation	Álvarez Puerta, Vicente Cárcel García, Sara Cervera Villanueva, Anselmo Díaz Medina, José Ferrario, Paola Gil, A. Gómez Cadenas, Juan José Laing, Andrew Liubarsky, Igor Lorca Galindo, David Martín-Albo Simón, Justo Monrabal Capilla, Francesc Muñoz Vidal, J. Nebot Guinot, Miquel Rodríguez Samaniego, Javier Serra Díaz-Cano, Luis Simón Estevez, Ander Sorel, Michel Yahlali Haddou, Nadia 2013 Ionization and scintillation response of high-pressure xenon gas to alpha particles Journal Of Instrumentation 8 P05025
dc.identifier.uri	http://hdl.handle.net/10550/31110
dc.description.abstract	High-pressure xenon gas is an attractive detection medium for a variety of applications in fundamental and applied physics. In this paper we study the ionization and scintillation detection properties of xenon gas at 10 bar pressure. For this purpose, we use a source of alpha particles in the NEXT-DEMO time projection chamber, the large scale prototype of the NEXT-100 neutrinoless double beta decay experiment, in three different drift electric field configurations. We measure the ionization electron drift velocity and longitudinal diffusion, and compare our results to expectations based on available electron scattering cross sections on pure xenon. In addition, two types of measurements addressing the connection between the ionization and scintillation yields are performed. On the one hand we observe, for the first time in xenon gas, large event-by-event correlated fluctuations between the ionization and scintillation signals, similar to that already observed in liquid xenon. On the other hand, we study the field dependence of the average scintillation and ionization yields. Both types of measurements may shed light on the mechanism of electron-ion recombination in xenon gas for highly-ionizing particles. Finally, by comparing the response of alpha particles and electrons in NEXT-DEMO, we find no evidence for quenching of the primary scintillation light produced by alpha particles in the xenon gas.
dc.relation.ispartof	Journal Of Instrumentation, 2013, vol. 8, p. P05025
dc.subject	Física
dc.title	Ionization and scintillation response of high-pressure xenon gas to alpha particles
dc.type	journal article	es_ES
dc.date.updated	2013-11-18T12:26:04Z
dc.identifier.doi	10.1088/1748-0221/8/05/P05025
dc.identifier.idgrec	090842
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1088/1748-0221/8/05/P05025