Neutron and gamma fields at neutron spallation sources for single-event-effects testing

Author

Platt, S.P. ; Hong, Q. ; Mein, S.J. ; Zhang, L.H.

Author_Institution

Sch. of Comput., Eng. & Phys. Sci., Univ. of Central Lancashire, Preston, UK

fYear

2013

fDate

23-27 Sept. 2013

Firstpage

1

Lastpage

4

Abstract

Monte-Carlo simulations of spallation fields are used to determine neutron and gamma spectra in beams used for single-event-effects testing. Spectra at LANSCE (ICE House) and TSL (ANITA) are calculated using Geant4 with Bertini and binary intranuclear cascade (INC) models. Results with the binary INC model give a good representation of neutron spectra obtained from measurements and independent calculations in each case, and predict gamma dose rates consistent with measured data where these are available. The gamma field in each beam is dominated by a continuum between about 100 keV and about 10 MeV. Integral gamma yields are approximately 0.26 γ p^-1 sr^-1 and 0.046 γ p^-1 sr^-1 at the ICE House and ANITA, respectively.

Keywords

Monte Carlo methods; gamma-ray spectra; neutron spectra; radiation hardening (electronics); ANITA; Bertini; Geant4; ICE House; INC models; LANSCE; Monte Carlo simulations; TSL; binary intranuclear cascade models; gamma dose rates; gamma fields; gamma spectra; integral gamma yields; neutron fields; neutron spallation sources; neutron spectra; single-event-effects testing; spallation fields; Atmospheric modeling; Ice; Neutrons; Particle beams; Photonics; Testing; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Radiation and Its Effects on Components and Systems (RADECS), 2013 14th European Conference on

Conference_Location

Oxford

Type

conf

DOI

10.1109/RADECS.2013.6937365

Filename

6937365