First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements

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dc.contributor	Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.contributor	Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia
dc.contributor.author	Perez Magan, D. L.
dc.contributor.author	Caballero Ontanaya, L.
dc.contributor.author	Domingo Pardo, César
dc.contributor.author	Agramunt Ros, Jorge
dc.contributor.author	Albiol, F.
dc.contributor.author	Casanovas Grau, Albert
dc.contributor.author	Gonzalez, A.
dc.contributor.author	Guerrero, C.
dc.contributor.author	Lerendegui Marco, J.
dc.contributor.author	Tarifeño Saldivia, Ariel Esteban
dc.date	2016-07-01
dc.identifier.citation	Perez, D., Caballero Ontanaya, L., Domingo-Pardo, C., Agramunt, J., Albiol, F., Casanovas, A., Gonzalez, A., Guerrero, C., Lerendegui, J., Tarifeño, A. First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements. "Nuclear instruments and methods in physics research. Section A, accelerators SP", 1 Juliol 2016, vol. 823, p. 107-119.
dc.identifier.citation	0168-9002
dc.identifier.citation	10.1016/j.nima.2016.03.073
dc.identifier.uri	http://hdl.handle.net/2117/90017
dc.language.iso	eng
dc.relation	http://www.sciencedirect.com/science/article/pii/S0168900216300961
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Física::Física molecular
dc.subject	Neutrons
dc.subject	Nuclear physics
dc.subject	Neutron capture cross-sections
dc.subject	gamma-ray imaging
dc.subject	Total energy detectors
dc.subject	Pulse-height weighting technique
dc.subject	Time-of-flight method
dc.subject	Data-acquisition system
dc.subject	Facility n-tof
dc.subject	Simulation
dc.subject	Cern
dc.subject	Neutrons
dc.subject	Raigs gamma
dc.subject	Física nuclear
dc.title	First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	In this work we explore for the first time the applicability of using gamma-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 Au-197 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. (C) 2016 Elsevier B.V. All rights reserved.

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