A high-rate 10B-loaded liquid scintillation detector for parity-violation studies in neutron resonances

Abstract We have developed a large-area 10 B -loaded liquid scintillation detector for parity-violation studies in neutron resonances with high instantaneous neutron fluxes from the LANSCE short-pulse spallation source. The detector has an efficiency of 95%, 85% and 71% at neutron energies of 10, 100 and 1000 eV, respectively. The neutron mean capture time in the detector is (416±5) ns . We describe the detector and the current-mode signal processing system, that can handle neutron rates up to 500 MHz.