Simulations of the cosmic-ray-induced neutron background

Marc F. Becchetti, Kiyo Ide, Alexis Poitrasson-Riviere, Michael C. Hamel, J. Kyle Polack, Matthew L. Scarpelli, Shaun D. Clarke, Marek Flaska, Sara A. Pozzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A method for simulating the cosmic-ray-induced neutron background at ground level has been developed. This method was used to obtain the expected pulse height distributions, net neutron rates, and angular distribution using EJ-309 liquid scintillators, and has been validated using outdoor measurements. The simulations were carried out using the Monte Carlo transport code MCNPX-PoliMi combined with the source subroutine CRY. The absolute count rates for neutrons were then obtained from the simulations using an empirical scaling formula from literature. Preliminary measurements of the angular distribution of background neutrons were done using a collimated EJ-309 liquid scintillator, showing fair agreement with simulations.

Original languageEnglish (US)
Title of host publication2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
Pages211-214
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 - Anaheim, CA, United States
Duration: Oct 29 2012Nov 3 2012

Publication series

NameIEEE Nuclear Science Symposium Conference Record
ISSN (Print)1095-7863

Other

Other2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012
CountryUnited States
CityAnaheim, CA
Period10/29/1211/3/12

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Becchetti, M. F., Ide, K., Poitrasson-Riviere, A., Hamel, M. C., Polack, J. K., Scarpelli, M. L., Clarke, S. D., Flaska, M., & Pozzi, S. A. (2012). Simulations of the cosmic-ray-induced neutron background. In 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, NSS/MIC 2012 (pp. 211-214). [6551095] (IEEE Nuclear Science Symposium Conference Record). https://doi.org/10.1109/NSSMIC.2012.6551095