The article describes the new software product developed at MEPhI. It represents a virtual reality simulation of an experiment on a subcritical uranium-graphite assembly. This practical work plays an important role in the training of young specialists studying the physics of nuclear reactors. However not all students have access to real experimental facilities, this fact makes it necessary to complement real experiment with simulation in virtual reality that allows to accurately reproduce the actions that the student performs during the real practical work. This approach let to increase the efficiency of the educational process and even expand the capabilities of real experimental assembly by visualizing physical processes during its operation.

. Minimization of the dose load on personnel of nuclear facilities is an important task. This work focuses on the possibilities of reducing the accumulated dose rate using augmented reality technology. The concept of a system for visualizing the distribution of the radiation background in a workroom located in the educational laboratory of the Department of Theoretical and Experimental Physics of Nuclear Reactors at National Research Nuclear University MEPhI is proposed. The workroom contains subcritical experimental facilities with sources of ionizing radiation. The system allows avoiding places of increased radiation, thereby minimizing the dose load. The concept is implemented in the form of an Android application made on Unreal Engine 4. The application creates a multi-colored fog, the color of which at each point depends on the dose rate of gamma radiation.