Liquid-scintillator stabilization with an internal (sup 137)Cs source

摘要

A stabilization option has been examined for a prototype fast-neutron multiplicity counter that combines liquid scintillators and pulse-shape-discrimination circuitry. The fast-neutron counter has been found to exhibit long-term instability over the range of (plus minus)10%. A new liquid scintillator with an internal (sup 137)Cs source has been fabricated and tested to see if the source spectrum can be used for stabilization. This paper describes the design and testing of the new fast-neutron detector and scintillator.