N Floyd, Md T Hassan, Z Tang, M Krivoš, M Blatnik, C Cude-Woods, S M Clayton, A T Holley, T M Ito, B A Johnson, C-Y Liu, M Makela, C L Morris, A S C Navazo, C M O'Shaughnessy, E L Renner, R W Pattie, A R Young
A study of the dead layer thickness and quenching factor of a plastic scintillator for use in ultracold neutron (UCN) experiments is described. Alpha spectroscopy was used to determine the thickness of a thin surface dead layer to be 630 ± 110 nm. The relative light outputs from the decay of 241Am and Compton scattering of electrons were used to extract Birks' law coefficient, yielding a kB value of 0.087 ± 0.003 mm/MeV, consistent with some previous reports for other polystyrene-based scintillators...
April 1, 2024: Review of Scientific Instruments