At present, more and more attention is being paid to the radiation safety of the population, in connection with this new devices are being modernized and modernized, to improve the state of protection of present and future generations of people from the harmful effects of ionizing radiation for their health. The article considers the key aspects in working with such equipment and suggests measures to reduce the risk of working with it, primarily for personnel, especially in emergency situations.

Keywords: Radiation, source, hot cell, radiation, safety, emergency situation, limitations, degree of radiation

The number of programs for modeling and design of buildings is great and continuous expansion of industry of creation objects cannot be stopped by high technologies. The most part of Russia's origin companies pay attention to foreign products despite great presence of domestic segment on the market. In the article will be considered the domestic software package Renga and also underlined his own advantages over existing analogues.

Keywords: Renga, Renga Architecture, Renga Structure, BIM, design, modeling, building, program