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日本发明了一种新型的放射性普查仪。它的特点是,除了能探测放射性强度外,还能确定射线的方向和放射源的位置。探测器的组成部分为:1.装有闪烁晶体的密封容器;2.把闪光变成电脉冲的元件;3.包在容器外的旋转铅屏,在屏的一侧有一个用来定向接收射线的开槽。仪器是这样设计的,在阴极射线管的屏幕上能够显示出脉冲的变化,并用极座标来表示射线的方向与强度。仪器可用于汽车γ普查。
Japan invented a new radiological survey instrument. Its distinguishing feature is that in addition to detecting radioactive intensities, it is also possible to determine the direction of the radiation and the position of the radioactive source. The components of the detector are: 1. a sealed container containing a scintillation crystal; 2. an element for converting the flash into an electrical pulse; 3. a rotating lead screen encased in a container having on the side of the screen a Slotted rays. The instrument is designed such that changes in the pulse can be seen on the cathode ray tube screen and the polar coordinates are used to indicate the direction and intensity of the radiation. Instrument can be used for car gamma screening.