Freitas, EDC.; Fernandes, LMP.; Yahlali, N.; Perez, J.; Alvarez, V.; Borges, FIG.; Camargo, M.... (2015). PMT calibration of a scintillation detector using primary scintillation. Journal of Instrumentation. 10:1-9. https://doi.org/10.1088/1748-0221/10/02/C02039
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/71899
Título:
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PMT calibration of a scintillation detector using primary scintillation
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Autor:
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Freitas, E. D. C.
Fernandes, L. M. P.
Yahlali, N.
Perez, J.
Alvarez, V.
Borges, F. I. G.
Camargo, M.
Carcel, S.
Cebrian, S.
Esteve Bosch, Raul
Marí Romero, Antonio Francisco
Mora Mas, Francisco José
Pérez Aparicio, José Luis
Rodríguez Samaniego, Javier
Toledo Alarcón, José Francisco
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica
Universitat Politècnica de València. Instituto de Instrumentación para Imagen Molecular - Institut d'Instrumentació per a Imatge Molecular
Universitat Politècnica de València. Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras - Departament de Mecànica dels Medis Continus i Teoria d'Estructures
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Fecha difusión:
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Resumen:
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We have studied the calibration of PMTs in scintillation detectors, inducing single electron response on the PMT from primary scintillation produced by x-ray interaction. The results agree with those obtained by the commonly ...[+]
We have studied the calibration of PMTs in scintillation detectors, inducing single electron response on the PMT from primary scintillation produced by x-ray interaction. The results agree with those obtained by the commonly used single electron response (SER) method, which uses LED light pulses to induce the PMT SER. The use of the primary scintillation for PMT calibration will be convenient in situations where the PMT is already in situ, when it becomes difficult or even impossible to apply the SER method, e.g. in commercial sealed scintillator/PMT devices.
Furthermore, we have experimentally investigated the possibility of fitting the high-charge tail of the PMT SER pulse-height distribution to an exponential function, inferring the PMT gain from the inverse of the exponent. The results of the exponential fit method agree with those obtained by the SER method for pulse-height distributions resulting from an average number of around 1.0 photoelectrons reaching the first dynode per light/scintillation pulse. The SER method has higher precision and, therefore, is used in a larger number of applications. Nevertheless, the exponential fit method will be useful in situations where the single photoelectron peak is under the background or noise peak and it may present an alternative, simple way, for relative gain calibration of PMT arrays as well as for monitoring the PMT gain variations.
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Palabras clave:
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Photon detectors for UV
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Visible and IR photons
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Scintillators
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Scintillation and light emission processes
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Derechos de uso:
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Cerrado |
Fuente:
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Journal of Instrumentation. (issn:
1748-0221
)
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DOI:
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10.1088/1748-0221/10/02/C02039
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Editorial:
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IOP Publishing
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Versión del editor:
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http://dx.doi.org/10.1088/1748-0221/10/02/C02039
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Código del Proyecto:
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info:eu-repo/grantAgreement/MICINN//CSD2008-00037/ES/Canfranc Underground Physics/
...[+]
info:eu-repo/grantAgreement/MICINN//CSD2008-00037/ES/Canfranc Underground Physics/
info:eu-repo/grantAgreement/J4FCT/5876-PPCDTI/103860/PT/
info:eu-repo/grantAgreement/MICINN//FPA2009-13697-C04-04/ES/Fisica Experimental De Neutrinos En El Ific/
info:eu-repo/grantAgreement/J4FCT/SFRH/SFRH/BPD/76842/2011/PT/
info:eu-repo/grantAgreement/MINECO//FIS2012-37947-C04-04/ES/ADQUISICION DE DATOS Y DISEÑO MECANICO PARA EL EXPERIMENTO NEXT/
info:eu-repo/grantAgreement/MINECO//FIS2012-37947-C04-03/ES/PROYECTO NEXT- MEDIDA DE ENERGIA Y TRAYECTORIAS/
info:eu-repo/grantAgreement/MINECO//FIS2012-37947-C04-01/ES/CONSTRUCCION DEL EXPERIMENTO NEXT EN EL LSC DE CANFRANC/
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Agradecimientos:
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The NEXT experiment is supported by the following agencies and institutions: the European Research Funding through an ERC Advanced Grant (NEXT 2013); Ministerio de Economia y Competitividad of Spain under grants ...[+]
The NEXT experiment is supported by the following agencies and institutions: the European Research Funding through an ERC Advanced Grant (NEXT 2013); Ministerio de Economia y Competitividad of Spain under grants CONSOLIDER-Ingenio 2010 CSD2008- 0037 (CUP), FPA2009-13697-C04-04 and FIS2012-37947-C04; the Portuguese FCT and FEDER through program COMPETE, project PTDC/FIS/103860/2008. C.M.B. Monteiro acknowledges grant SFRH/BPD/76842/2011 from FCT.
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Tipo:
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Artículo
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