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设计并建造了一架无铁双线圏磁透镜β谱仪。为使仪器具有良好的性能,用电子枪和荧光屏、放射源和 X 光底片及放射源和计数管三种方法对仪器进行了调整;并对谱仪的聚焦性能进行了研究;选取了谱仪的最佳工作条件。在两透镜线圈内表面相距15cm 的条件下,当分辨率为1.0％,1.5％,1.9％时;相应的有效透射率为0.23％,0.50％,0.74％;可聚焦能量在2.8Mev 以下的电子;消耗功率1.2kw。
Design and construction of an iron-free birefringent β magnetic lens β spectrometer. In order to make the instrument have good performance, the instrument was adjusted by using three methods: electron gun and fluorescent screen, radioactive source, X-ray film, radioactive source and counting tube. The focusing performance of the spectrometer was studied. Best working condition In the condition that the inner surfaces of the two lens coils are 15cm away from each other, the effective transmittances are 0.23%, 0.50% and 0.74% when the resolution is 1.0%, 1.5% and 1.9% ; Power consumption 1.2kw.