%0 Journal Article
%T First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements
%A Magan, D. L. P.
%A Caballero, L.
%A Domingo-Pardo, C.
%A Agramunt-Ros, J.
%A Albiol, F.
%A Casanovas, A.
%A Gonzalez, A.
%A Guerrero, C.
%A Lerendegui-Marco, J.
%A Tarifeño-Saldivia, A.
%J Nuclear Instruments & Methods in Physics Research A
%D 2016
%V 823
%I Elsevier Science Bv
%@ 0168-9002
%G English
%F Magan_etal2016
%O WOS:000374661600015
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2665), last updated on Tue, 13 Oct 2020 12:51:57 +0000
%X 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.
%K Neutron capture cross-sections
%K gamma-ray imaging
%K Total energy detectors
%K Pulse-height weighting technique
%K Time-of-flight method
%R 10.1016/j.nima.2016.03.073
%U http://arxiv.org/abs/1510.02344
%U https://doi.org/10.1016/j.nima.2016.03.073
%P 107-119