We present the design, characterization, and testing of a laboratory prototype radiological search and localization system. The system, based on time-encoded imaging, uses the attenuation signature of neutrons in time, induced by the geometrical layout and motion of the system. We have demonstrated the ability to detect a ~1 mCi Cf-252 radiological source at 100 m standoff with 90% detection efficiency and 10% false positives against background in 12 min. This same detection efficiency is met at 15 s for a 40 m standoff, and 1.2 s for a 20 m standoff.
@article{arxiv.1706.04230,
title = {Source detection at 100 meter standoff with a time-encoded imaging system},
author = {J. Brennan and E. Brubaker and M. Gerling and P. Marleau and M. Monterial and A. Nowack and P. Schuster and B. Sturm and M. Sweany},
journal= {arXiv preprint arXiv:1706.04230},
year = {2017}
}
Comments
9 pages, 15 figures, submitted to Nuclear Inst. and Methods in Physics Research, A