The measurement of the neutron capture cross-section as a function of energy in the thermal range requires a precise knowledge of the absolute neutron flux. In this paper a new method of calibrating a thermal neutron beam using the controlled activation of sodium is described. The method is applied to the FP-14 Time Of Flight neutron beam line at the Los Alamos Neutron Science Center to calibrate the beam to a precision of ±5%.
@article{arxiv.1902.01347,
title = {Absolute Calibration of the DANCE Thermal Neutron Beam using Sodium Activation},
author = {V. Fischer and L. Pagani and L. Pickard and C. Grant and J. He and E. Pantic and R. Svoboda and J. Ullmann and J. Wang},
journal= {arXiv preprint arXiv:1902.01347},
year = {2019}
}
Comments
12 pages, 3 figures, v2 is the version accepted for publication in NIM A