The Time-Resolved Integrative Optical Neutron (TRION) detector was developed for Fast Neutron Resonance Radiography (FNRR), a fast-neutron transmission imaging method that exploits characteristic energy-variations of the total scattering cross-section in the En = 1-10 MeV range to detect specific elements within a radiographed object. As opposed to classical event-counting time of flight (ECTOF), it integrates the detector signal during a well-defined neutron Time of Flight window corresponding to a pre-selected energy bin, e.g., the energy-interval spanning a cross-section resonance of an element such as C, O and N. The integrative characteristic of the detector permits loss-free operation at very intense, pulsed neutron fluxes, at a cost however, of recorded temporal resolution degradation. This work presents a theoretical and experimental evaluation of detector related parameters which affect temporal resolution of the TRION system.
@article{arxiv.1311.2701,
title = {Parameters Affecting Temporal Resolution of Time Resolved Integrative Optical Neutron Detector (TRION)},
author = {I. Mor and D. Vartsky and V. Dangendorf and D. Bar and G. Feldman and M. B. Goldberg and K. Tittelmeier and B. Bromberger and M. Brandis and M. Weierganz},
journal= {arXiv preprint arXiv:1311.2701},
year = {2015}
}
Comments
Pre-print, also appears at JINST KEYWORDS: Fast neutron detectors; Plastic scintillator; Neutron radiography; Time-of-flight spectroscopy; Detection of explosives; Image intensifier; Pulsed Fast Neutron Transmission Spectroscopy (PFNTS); Fast Neutron Resonance Radiography (FNRR); Simulation