Some parameters of uranium hexafluoride plasma produced by products of nuclear reaction

The probe experimental results of investigation of uranium hexafluoride plasma produced in the centre of nuclear reactor core were demonstrated. Study of uranium hexafluoride plasma is continued by the following reasons: a possibility of U F6 utilization as nuclear fuel, the utilization of U F6 as volume source o ionization, search of active laser media compatible with U F6 that is complicated by lack of constant rates data for most of plasma-chemical reactions with U F6 and his dissociation products. Cylindrical probe volt-ampere characteristics (VAC) measured in U F6 plasma at pressure 20 Torr and different thermal neutron fluxes and have following features: -firstly, it is possible to choose a linear part in the field of small positive potentials of probe (0-1) V; - secondary, ion branches of VAC have typical break which current of satiation corresponds to; -thirdly, probe VAC measured at small values of thermal neutron flux density are symmetrical. Diagnostics approaches were used for interpretation VAC of probe. The values of satiation current and linear part of electron branch were calculated, and such plasma parameters as conductivity, diffusion coefficient values of positive and negative ions were determined. The resonance recharge cross section was estimated on diffusion coefficient value