Response of a Liquid ${}^3$He Neutron Detector

Abstract

The ${}^3$He(n,p) process is excellent for neutron detection between thermal and $\sim$4\,MeV because of the high cross section and near-complete energy transfer from the neutron to the proton. This process is typically used in gaseous forms with ionization readout detectors. Here we study the response of a liquid ${}^3$He neutron detector with a scintillation readout. We anticipate an efficiency boost of around a factor of 64 compared to 10\,atm gaseous detectors, given similar detector volumes.

10 pages, 1 table, 8 figures

References in corpus (4)

• Systematic study of trace radioactive impurities in candidate construction materials for EXO-200
• Direct measurement of the 13C(α,n)16O cross section into the s-process Gamow peak
• Scintillation yield from electronic and nuclear recoils in superfluid ${}^4$He
• Study of neutron-induced background and its effect on the search of 0$\nu \beta \beta$ decay in ${}^{124}\mathrm{Sn}$

Cited by in corpus (1)

• Liquid ${}^3$He Detectors for Neutrons