Unrecognized Backscattering in Low Energy Beta Spectroscopy

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

References in corpus (6)

• Is the Unitarity of the quark-mixing-CKM-matrix violated in neutron $\beta$-decay?
• Experiments in Fundamental Neutron Physics
• Measurement of the Neutrino Asymmetry Parameter B in Neutron Decay
• Measurement of Electron Backscattering in the Energy Range of Neutron $\beta$-Decay
• New Measurements and Quantitative Analysis of Electron Backscattering in the Energy Range of Neutron Beta-Decay
• A Backscatter-Suppressed Beta Spectrometer for Neutron Decay Studies

Cited by in corpus (8)

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• A clean, bright, and versatile source of neutron decay products
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• Constraints on the Dark Matter Interpretation $n\to \chi +e^{+}{e}^{-}$ of the Neutron Decay Anomaly with the PERKEO II experiment
• A solenoidal electron spectrometer for a precision measurement of the neutron $\beta$-asymmetry with ultracold neutrons
• Undetected Electron Backscattering in PERKEO III
• Characterization of electron detectors by time-of-flight in neutron \b{eta} decay experiments