该高压电源与密封中子管组成轻便密封中子发生器，用120kV高压加速离子打在靶上产生14MeV中子。由于中子发生器要用于野外流动辐照，这就要求中子发生器要小型轻便、操作简单、安全可靠。由于所用中子管的重量仅几百克重，因此高压电源能否小型化，就成为中子发生器能否成为便携式的关键了。所研制的直流高压电源外形图如图1所示。

With the principle of component combination isolation being applied the power source is inclosed in a earthed metallic enclosure (volume: 10×20×34 cm

3

weight: 14.3 kg) and powered directly by a power supply with commercial frequency of 50 Hz. The output voltage can be adjusted continuously from 0~120kV by means of a small adjustable autotransformer. The output lead is a 150kV cable with maximum output power being 100W. The complete set can be carried in a hand bag

working safely and operated easily.