| 摘要 |
A position sensitive detector for ionizing radiation (12) comprising a micro-channel plate (15) with active areas or channels (14) having a surface layer (16) which is typically a doped semiconductor that generates secondary electrons to be multiplied; and in order to enhance secondary electron production, a substantial length of the detector channel (14) is filled with a scintillator material (17). The enhanced and multiplied secondary electron signal is then collected by a light generating phosphor layer (22) which is positioned within the detector channel (14) and the subsequent light is converted to an electrical signal by a conversion means such as a charge coupled device (24). |
