The Alternative to Radioactive Source Equipment for your Research Irradiation Needs. The system is capable of an output of 80 to 160 kV in 1 kV increments and zero to 25 mA in .1 mA increments. The equipment is designed for safety. A main disconnect switch is provided along with circuit breakers for X-ray power. The unit is operated from a single source of 220 VAC +-10% at 40 amp single phase, 47 to 63 Hz, standard north American power.