| 摘要 |
PURPOSE:To minimize X ray exposure to a human body while obtaining an X- ray photography with a high resolution by employing an X-ray detecting plate made up of a fine powder for a dosimeter glass applied on a substrate at a specified thickness. CONSTITUTION:An X-ray detection plate 1 is composed of a substrate 2 and a dosimeter glass power layer 3 applied at the thickness of 50-500 micron. The dosimeter glass powder layer 3 has a glass finely crushed to less than 40 micron in the grain size fastened on the surface of the substrate 2 with an organic or inorganic adhesive. The substrate 2 is made out of a paper or plastic film or an aluminum or alumina plate. Fluorescence emitted from the plastic film and the adhesive in the X-ray detection plate is separated employing a pulse measuring method by laser having energy of ultraviolet rays to detect the brightness distribution of a feeble radio photoluminescence. |
