Two generations of a novel detector for high-resolution transmission imaging and spectrometry of fast-neutrons are presented. These devices are based on a hydrogenous fiber scintillator screen and single- or multiple-gated intensified camera systems (ICCD). This detector is designed for energy-selective neutron radiography with nanosecond-pulsed broad-energy (1 - 10 MeV) neutron beams. Utilizing the Time-of-Flight (TOF) method, such a detector is capable of simultaneously capturing several images, each at a different neutron energy (TOF). In addition, a gamma-ray image can also be simultaneously registered, allowing combined neutron/gamma inspection of objects. This permits combining the sensitivity of the fast-neutron resonance method to low-Z elements with that of gamma radiography to high-Z materials.
@article{arxiv.0905.4399,
title = {High Spatial Resolution Fast-Neutron Imaging Detectors for Pulsed Fast-Neutron Transmission Spectroscopy},
author = {I. Mor and D. Vartsky and D. Bar and G. Feldman and M. B. Goldberg and D. Katz and E. Sayag and I. Shmueli and Y. Cohen and A. Tal and Z. Vagish and B. Bromberger and V. Dangendorf and D. Mugai and K. Tittelmeier and M. Weierganz},
journal= {arXiv preprint arXiv:0905.4399},
year = {2009}
}
Comments
Also published in JINST: http://www.iop.org/EJ/abstract/1748-0221/4/05/P05016