Floating power supply is used to neutron tube in logging neutron generator, which minimizes the space of high-strength electric field, and reduces the voltage gradient by 1/3 in the high-strength electric field.

• 摘要井下中子发生器高压倍加电路采用中子管悬浮式供电，使高电场强度的空间范围缩小，高电场强度区间内单位距离的电压降减少了1/3左右。