Patent ID: 8664612
Filing Date: 2014-03-04
Classification: G01T

Abstract:
1. A scintillator detector of high-energy radiation generating scintillation light in response to an ionization event resulted from interaction by a high energy particle, said scintillator detector comprising: a semiconductor slab having alternating layers of barrier and well material, said barrier and well material layers are direct bandgap semiconductors with high radiative efficiency of minority carriers; a bandgap of said well material is smaller than a bandgap of said barrier material so that the barrier layers are substantially transparent to photons produced by carrier recombination in the well material; combined thickness of the well layers being substantially smaller than a total thickness of said semiconductor slab; thickness of the barrier layers being substantially greater than a diffusion length of the minority carriers; and thickness of the well layers being sufficiently large to absorb most of incident scintillating radiation generated in the barrier layers in response to the ionization event resulted from interaction by the incident high-energy particle.