TY  - JOUR
AU  - Magan, D. L. P.
AU  - Caballero, L.
AU  - Domingo-Pardo, C.
AU  - Agramunt-Ros, J.
AU  - Albiol, F.
AU  - Casanovas, A.
AU  - Gonzalez, A.
AU  - Guerrero, C.
AU  - Lerendegui-Marco, J.
AU  - Tarifeño-Saldivia, A.
PY  - 2016
DA  - 2016//
TI  - First tests of the applicability of gamma-ray imaging for background discrimination in time-of-flight neutron capture measurements
T2  - Nucl. Instrum. Methods Phys. Res. A
JO  - Nuclear Instruments & Methods in Physics Research A
SP  - 107
EP  - 119
VL  - 823
PB  - Elsevier Science Bv
KW  - Neutron capture cross-sections
KW  - gamma-ray imaging
KW  - Total energy detectors
KW  - Pulse-height weighting technique
KW  - Time-of-flight method
AB  - 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.
SN  - 0168-9002
UR  - http://arxiv.org/abs/1510.02344
UR  - https://doi.org/10.1016/j.nima.2016.03.073
DO  - 10.1016/j.nima.2016.03.073
LA  - English
N1  - WOS:000374661600015
ID  - Magan_etal2016
ER  -