Artículo
First tests of the applicability of γ-ray imaging for background discrimination in time-of-flight neutron capture measurements
Autor/es | Lerendegui Marco, Jorge
Pérez Magán, D. L. Caballero-Ontanaya, L. Domingo Pardo, César Agramunt-Ros, J. Albiol, F. Casanovas, A. González, A. Guerrero Sánchez, Carlos Tarifeño-Saldivia, A. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2016 |
Fecha de depósito | 2017-09-27 |
Publicado en |
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Resumen | In this work we explore for the first time the applicability of using γ-ray imaging in neutron capture measurements to identify and suppress spatially localized background. For this aim, a pinhole gamma camera is assembled, ... In this work we explore for the first time the applicability of using γ-ray imaging in neutron capture measurements to identify and suppress spatially localized background. For this aim, a pinhole gamma camera is assembled, tested and characterized in terms of energy and spatial performance. It consists of a monolithic CeBr3 scintillating crystal coupled to a position-sensitive photomultiplier and readout through an integrated circuit AMIC2GR. The pinhole collimator is a massive carven block of lead. A series of dedicated measurements with calibrated sources and with a neutron beam incident on a 197Au sample have been carried out at n_TOF, achieving an enhancement of a factor of two in the signal-to-background ratio when selecting only those events coming from the direction of the sample. |
Identificador del proyecto | info:eu-repo/grantAgreement/MINECO/FPA2011-24553
info:eu-repo/grantAgreement/MINECO/FPA2013-45083-P info:eu-repo/grantAgreement/MINECO/SEV-2014-0398 |
Cita | Lerendegui Marco, J., Pérez Magán, D.L., Caballero-Ontanaya, L., Domingo Pardo, C., Agramunt-Ros, J., Albiol, F.,...,Tarifeño-Saldivia, A. (2016). First tests of the applicability of γ-ray imaging for background discrimination in time-of-flight neutron capture measurements. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 823, 107-119. |
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