Unrecognized Backscattering in Low Energy Beta Spectroscopy
arXiv:0708.3150 · doi:10.1016/j.nima.2007.11.016
Abstract
We present studies on electron backscattering from the surface of plastic scintillator beta detectors. By using a setup of two detectors coaxial with a strong external magnetic field - one detector serving as primary detector, the other as veto-detector to detect backscattering - we investigate amount and spectrum of unrecognized backscattering, i.e. events where only one detector recorded a trigger signal. The implications are important for low energy particle physics experiments.
5 pages, 8 figures; v2: published NIM A version