Open AccessPreliminary studies for a high energy neutron area monitor
Author(s) -
R. T. Devine,
H.H. Hsu
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/296781
Subject(s) - dosimeter , neutron , materials science , monte carlo method , nuclear physics , cr 39 , neutron temperature , beam (structure) , irradiation , physics , radiation , optics , statistics , mathematics
Track etch detectors were exposed to neutrons produced by a spallation target struck by a beam of 800 MeV protons. The fields were filtered by 0, 10, and 40 centimeters of polyethylene. The track etch dosimeters were exposed on a polyethylene phantom. The dosimeters were exposed bare and behind lead filters of 0.25, 0.50, 0.75, 1.00, 1.25 and 1.50 cm of lead with the face of the dosimeter perpendicular to the beam and bare and behind lead filters of 0.50, 1.0, and 1.5 cm of lead with angle of incidence 45{degree} and 75{degree}. Monte Carlo calculations of these experimental configurations were done using MCNP and LAHET with input from the calculated spectra. These results are compared with the experimental results to understand the basic processes involved in the production of tracks with high energy neutrons and develop a high energy neutron area monitor