Taylor, G. C. and Hawkes, Nigel and Shippen, Alan (2015) Accurate simulations of TEPC neutron spectra using Geant4. Radiation Physics and Chemistry, 116. pp. 186-188. ISSN 0969-806X
Full text not available from this repository.Abstract
A Geant4 model of a tissue-equivalent proportional counter (TEPC) has been developed in which the calculated output spectrum exhibits unparalleled agreement with experiment for monoenergetic neutron fields at several energies below 20 MeV. The model uses the standard release of the Geant4 9.6 p2 code, but with a non-standard neutron cross section file as provided by Mendoza et al., and with the environment variable options recommended by the same authors. This configuration was found to produce significant improvements in the alpha-dominated region of the calculated response. In this paper, these improvements are presented, and the post-processing required to convert deposited energy into the number of ion pairs (which is the quantity actually measured experimentally) is discussed.