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测量装置(见图所示)由薄膜室和电子线路组成。靶支架与二把千分尺相连,能作二维移动,从而改变薄膜的位置,完成薄膜均匀性的测量。金硅面垒型半导体探测器与另一把千分尺连接,转动千分尺,就能改变半导体探测器到放射源之间的距离。整个几何安排能确保探测器上下移动时,到达探测器的α粒子数保持不变。电子线路包括前置放大器、主放大器、单道分析器和定标器。
The measuring device (see picture) consists of a membrane chamber and electronics. The target holder is attached to two micrometers for two-dimensional movement, changing the position of the film and measuring the uniformity of the film. The gold silicon base type semiconductor detector connected to another micrometer, turn the micrometer, you can change the semiconductor detector to the distance between the sources. The entire geometry ensures that when the detector moves up and down, the number of alpha particles reaching the detector remains the same. Electronic circuits include preamplifiers, main amplifiers, single-channel analyzers and scalers.