Collimator for measuring radioactive radiation
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United States of America Patent
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Oct 22, 1991
Grant Date -
N/A
app pub date -
May 14, 1990
filing date -
May 12, 1989
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Expired
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Abstract
A plate-shaped collimator with a plurality of through-bores for increasing locality-sensitivity during measurement of the radiation from a radioactive substance, by means of a detector disposed adjacent the collimator, wherein the collimator is provided with an insulting core having two opposed major surfaces, two electrically conductive layers each disposed on a respective collimator surface, and a source connected for applying a voltage for creating, between the conductive layers, an electrical field which acts on charged particles emanating from the radioactive substance to exert on these particles a force having a main component which is directed towards the detector in a direction substantially perpendicular to the conductive layers.
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