Patent ID: 7180070
Filing Date: 2007-02-20
Classification: G01T

Abstract:
1. A radiation detector for imaging a sheet-shaped beam of ionizing radiation, comprising an entrance window structure, through which said sheet-shaped beam of ionizing radiation is entered; an electron multiplication chamber filled with a medium for electron multiplication; a solid mechanical structure arranged in the path of said sheet-shaped beam of ionizing radiation within said electron multiplication chamber, and provided to liberate electrons in response to being exposed to said sheet-shaped beam of ionizing radiation, said solid mechanical structure including multiple channels extending in a direction generally orthogonal to the plane of said sheet-shaped beam of ionizing radiation and being filled with said medium for electron multiplication, so that electrons liberated from solid mechanical structure can produce multiple electrons in said multiple channels; an electrode arrangement for drifting, and optionally avalanche amplifying, said multiple electrons in said direction generally orthogonal to the plane of said sheet-shaped beam of ionizing radiation; and first electron detecting means for detecting said multiple electrons spatially resolved to thereby image said sheet-shaped beam of ionizing radiation, wherein said solid mechanical structure is of a scintillating material, so that said solid mechanical structure emits scintillating light in response to being exposed to said sheet-shaped beam of ionizing radiation; and detecting means are provided for detecting scintillating light emitted from said solid mechanical structure.