| 摘要 |
<p>PURPOSE:To diminish the spread of radiations from a medicine from the body of a person to be examined so that resolving power is enhanced and a detecting device is miniaturized by using the detecting device which is arranged with plural pieces of radiation detectors in a matrix state so as to be placed along the affected part of the above-mentioned person. CONSTITUTION:The radioactive medicine is dosed to the affected part of the person to be examined and the detecting device 1 is so mounted on the affected part that the common electrode 4ij of the radiation detector array Dij thereof comes into tight contact with the affected part. An electric charge is generated in the surface of the detecting elements Smn of the array Dij when the radiations from the medicine enter said elements. The pulses thereof are selected by an amplifier Amn in accordance with the crest value corresponding to the energy of gamma rays and the output signals thereof are coded by the respective gates Gxm, Gyn of the lines and rows in accordance with the positions of the elements Smn and are further coded by the internal mutual circuits of a substrate 1 in accordance with the position of the chip 2ij to which the radiations are projected. The codes signals are sent from the detecting device 1 to an image processor.</p> |
