Apparatus and method for radiation detection with radiation beam impinging on photocathode layer at a grazing incidence
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United States of America Patent
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May 4, 2004
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N/A
app pub date -
Oct 30, 2000
filing date -
Jun 5, 2000
priority date (Note) -
Expired
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Abstract
The present invention relates to an apparatus for detection of radiation comprising a photocathode layer adapted to release photoelectrons in dependence on incident radiation; a radiation entrance arranged such that a beam of radiation can be entered into the apparatus through said radiation entrance and can impinge on said photocathode layer at grazing incidence; an electron avalanche amplifier adapted to avalanche amplify photoelectrons released from said photocathode layer; and a readout arrangement 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.
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