2017-09-272017-09-272016Lerendegui 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, 107-119.0168-9002 (impreso)1872-9576 (electrónico)http://hdl.handle.net/11441/64772In 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.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Neutron capture cross-sectionsγ-ray imagingTotal energy detectorsPulse-height weighting techniqueTime-of-flight methodMSC: 00-01; 99-00info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1016/j.nima.2016.03.073