A scintillation detector of pulsed soft X rays

Abstract

A pulsed soft-X-ray detector consisting of a high-current photomultiplier tube and a thin-film polystyrene-based plastic scintillator was developed. Its characteristics were investigated by detecting quasimonochromatic 0.84-keV X-ray pulses. The dependence of the scintillator light output on the photon energy flux density was obtained. The average effective thickness of the surface non-scintillating (“dead”) layer affecting the spectral response of this detector type was estimated.