Pulse-shape discrimination with PbWO$_4$ crystal scintillators
arXiv:0706.2422 · doi:10.1016/j.nima.2007.10.021
Abstract
The light output, $α/β$ ratio, and pulse shape have been investigated at $-25^\circ$ C with PbWO$_4$ crystal scintillators undoped, and doped by F, Eu, Mo, Gd and S. The fast $0.01-0.06 μ$s and middle $0.1-0.5 μ$s components of scintillation decay were observed for all the samples. Slow components of scintillation signal with the decay times $1-3 μ$s and $13-28 μ$s with the total intensity up to $\approx50%$ have been recognized for several samples doped by Molybdenum. We found some indications of a pulse-shape discrimination between $α$ particles and $γ$ quanta with PbWO$_4$ (Mo doped) crystal scintillators.
12 pages, 5 figures, submitted to NIM A