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我院用于堆中子活化分析的自动γ谱仪先是用S-85多道分析器为主控,它有下述缺点:多道分析器获取的谱不能自动传给PDP-11/34计算机,因此只能分析简单谱;多道分析器直接输出的速度慢,输出结果为峰面积,而不是含量;多道分析器主电源开关关闭后,内存里的程序就丢失,因此使用不方便。以前从多道分析器传一个谱给计算机是靠手工操作和人机对话来完成的,这显然不符合无人看管的全自动γ谱仪的要求。
The automated gamma spectrometer used in our reactor for heap neutron activation analysis was primarily based on the S-85 multichannel analyzer with the following disadvantages: The spectrum acquired by the multiplexer can not be automatically transmitted to the PDP-11/34 computer , So you can only analyze the simple spectrum; multi-channel analyzer output directly slow, the output results for the peak area, not the content; multi-channel analyzer main power switch is turned off, the program in memory is lost, so use is not convenient. Previously, passing a spectrum from a multichannel analyzer to a computer was done by manual operation and man-machine dialogue, which clearly did not meet the requirements of an unattended, fully automated gamma spectrometer.