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A method for detecting ionizing radiation, a radiation detector and an apparatus for use in planar beam radiography
A method for detecting ionizing radiation, a radiation detector and an apparatus for use in planar beam radiography
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机译:用于检测电离辐射的方法,辐射检测器和用于平面束射线照相的设备
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摘要
A method for detecting ionizing radiation, a detector (64) for detection of ionizing radiation, and an apparatus for use in planar beam radiography, including the detector. The detector includes: a chamber filled with an ionizable gas; first and second electrode arrangements (2, 1, 18, 19) provided in the chamber with a space between them, the space including a conversion volume (13); an electron avalanche amplification unit (17) arranged in the chamber; and, at least one arrangement of read-out elements (15) for detection of electron avalanches. Radiation enters the conversion volume between the first and second electrode arrangements via a radiation entrance. The distance between the first and second electrode arrangements is selected to achieve discrimination of fluorescent photons and/or long-range electrons, in order to achieve improved position resolution.
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