公开(公告)号：WO01094981A1

公开(公告)日：2001-12-13

申请号：PCT/SE2001/001251

申请日：2001-06-05

IPC: G01N23/04 ,  G01T1/00 ,  G01T1/18 ,  G01T1/185 ,  G01T1/28 ,  H01J29/38 ,  H01J43/02 ,  H01J47/06

CPC classification number: G01T1/185 ,  H01J43/02

Abstract: The present invention relates to an apparatus (9) for detection of radiation comprising a photocathode (18) adapted to release photoelectrons in dependence on incident radiation; a radiation entrance (33) arranged such that a beam (1) of radiation can be entered into the apparatus through said radiation entrance and can impinge on said photocathode at grazing incidence; an electron avalanche amplifier (21, 27, 29, 53) adapted to avalanche amplify photoelectrons released from said photocathode; and a readout arrangement (27, 29) adapted to detect avalanche amplified electrons from said amplifier. The invention further relates to a corresponding method for detection of ionizing radiation and to an arrangement for use in planar beam radiography comprising the detector apparatus.

Abstract translation: 本发明涉及一种用于检测辐射的装置（9），包括适于根据入射辐射释放光电子的光电阴极（18）; 辐射入口（33），其布置成使得辐射束（1）可以通过所述辐射入口进入所述设备，并且可以在放牧入射时撞击在所述光电阴极上; 适于雪崩放大从所述光电阴极释放的光电子的电子雪崩放大器（21,27,29,53）; 以及适于从所述放大器检测雪崩放大的电子的读出装置（27,29）。 本发明还涉及用于检测电离辐射的相应方法以及用于平面射线照相成像的装置，其包括检测器装置。