A method of calculating the rate of release of Wigner energy in heat conduction problems for irradiated graphite

A method is developed for the calculation of the rate of release of stored energy when annealing stored graphite. The method is based on the utilization of regularities of the sample temperature rise under adiabatic heating. The algorithm of calculation of internal heat sources, which is based on this method, is realized in the case of numerical solution of the problem of heat conduction in irradiated graphite under conditions of Wigner energy release. The method is verified using the adiabatic heating of a cylindrical sample as an example. An investigation is performed of the effect of the coefficient of intensity of heat transfer between a graphite sample and environment on the process of variation of temperature fields in the sample with release of stored energy.