The aCORN Backscatter-Suppressed Beta Spectrometer
arXiv:1701.04820 · doi:10.1016/j.nima.2017.05.029
Abstract
Backscatter of electrons from a beta spectrometer, with incomplete energy deposition, can lead to undesirable effects in many types of experiments. We present and discuss the design and operation of a backscatter-suppressed beta spectrometer that was developed as part of a program to measure the electron-antineutrino correlation coefficient in neutron beta decay (aCORN). An array of backscatter veto detectors surrounds a plastic scintillator beta energy detector. The spectrometer contains an axial magnetic field gradient, so electrons are efficiently admitted but have a low probability for escaping back through the entrance after backscattering. The design, construction, calibration, and performance of the spectrometer are discussed.
arXiv comment15 figures
References in corpus (4)
Cited by in corpus (4)
- Measurement of the neutron decay electron-antineutrino angular correlation by the aCORN experiment
- aCORN: an experiment to measure the electron-antineutrino correlation coefficient in free neutron decay
- Neutron Polarimetry Using a Polarized 3He Cell for the aCORN Experiment
- Study of silicon photomultipliers for use in neutron decay experiments