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Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements

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Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements

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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	Martínez Pérez, Alberto
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	2013-11-18T15:30:24Z
dc.date.available	2013-11-18T15:30:24Z
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 Martínez Pérez, Alberto Monrabal Capilla, Francesc Muñoz Vidal, J. Nebot Guinot, Miquel Rodriguez Samaniego, Javier Serra Diaz-Cano, Luis Simón Estevez, Ander Sorel, Michel Yahlali Haddou, Nadia 2013 Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements Journal Of Instrumentation 8 1 T01002
dc.identifier.uri	http://hdl.handle.net/10550/31133
dc.description.abstract	We have investigated the possibility of calibrating the PMTs of scintillation detectors, using the primary scintillation produced by X-rays to induce single photoelectron response of the PMT. The high-energy tail of this response, can be approximated to an exponential function, under some conditions. In these cases, it is possible to determine the average gain for each PMT biasing voltage from the inverse of the exponent of the exponential fit to the tail, which can be done even if the background and/or noise cover-up most of the distribution. We have compared our results with those obtained by the commonly used single electron response (SER) method, which uses a LED to induce a single photoelectron response of the PMT and determines the peak position of such response, relative to the pedestal peak (the electronic noise peak, which corresponds to 0 photoelectrons). The results of the exponential fit method agree with those obtained by the SER method when the average number of photoelectrons reaching the first dynode per light/scintillation pulse is around 1.0. The SER method has higher precision, while the exponential fit method has the advantage of being useful in situations where the PMT is already in situ, being difficult or even impossible to apply the SER method, e.g. in sealed scintillator/PMT devices.
dc.relation.ispartof	Journal Of Instrumentation, 2013, vol. 8, num. 1, p. T01002
dc.subject	Física
dc.title	Radiopurity control in the NEXT-100 double beta decay experiment: procedures and initial measurements
dc.type	journal article	es_ES
dc.date.updated	2013-11-18T15:30:24Z
dc.identifier.doi	10.1088/1748-0221/8/01/T01002
dc.identifier.idgrec	082887
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1088/1748-0221/8/01/T01002