The steps of physical investigations of radiation protection of the first nuclear submarine 'Leninskij Komsomol'

The paper deals with physical investigation of small-scale and low mass radiation (biological) protection of the first nuclear submarine 'Leninskij Komsomol'. Main stages of investigation are presented: from the beginning of concept development and design work in 1952 to dock-side trials in 1958. Particular attention is paid to results of experimental studies, obtained on benches with ionizing radiation sources, with prototypes of different protection directions, tested in special reactor and on full-scale prototype bench of the submarine and during dock-side trials. 19 refs., 5 figs., 1 tab