An investigation of the disinfection effect in joint action of the nanosecond electron beam and plasma radiation

Abstract

The subject of the investigation of the possible synergy sterilizing effect included the joint action by the nanosecond electron beam (NEB) and plasma radiation of nanosecond gas discharge of high pressure. Plasma radiation was carried out by the GVI-150 generator which loading involved a discharge camera. Pulse repetition rate of the generator operation was 37 pps, and distance from electrodes cutoff to processed samples ∼5 cm. The experiments on irradiation by the NEB were made on the pulse repetitive nanosecond accelerator URT-0.5 (electrons energy up to 500 keV, a pulse duration 50 ns, pulse repetition rate up to 200 pps). The time the vessel has been irradiated changed from 0 to 5 minutes; the absorbed dose (AD) of different batches changed from 0 to 5 kGy. The extensive data array on joint action of the NEB and plasma radiation for several types of widespread microorganism is received. Also, the synergetic effect of the NEB influence and plasma radiation on microorganisms such as Klebsiella is found. © Published under licence by IOP Publishing Ltd.