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一台薄磁透镜β-射线能谱仪已经建成并开始工作。它的磁场线圈由两个具有内外半径分别为9.5cm和22cm,轴向长8cm的线包并排组成,总匝数为6580匝,总重量约100公斤;真空室由长109.5cm,内直径14 cm的无缝紫铜管作成,这台谱仪能聚焦的电子的最大能量为3 Mev(对应功率消耗约1070瓦)。当使用直径5 m.m.的源时,在0.27％的传射率下,仪器的分辨率是2.8％。
A thin magnetic lens β-ray spectrometer has been built and started to work. Its magnetic field coil consists of two line packages with inner and outer radii of 9.5cm and 22cm respectively and an axial length of 8cm arranged side by side with a total number of turns of 6580 turns and a total weight of about 100kg. The vacuum chamber consists of a length of 109.5cm and an inner diameter of 14 cm seamless copper tube, the electron energy that this spectrometer can focus on is 3 Mev (corresponding to the power consumption of about 1070 watts). When using a source of 5 m.m. diameter, the resolution of the instrument is 2.8% at a transmission of 0.27%.