Survey of experimental studies on release and deposition of reactor fuel fission products

In the work, a review of the most important results from 11 series of experimental studies on fission product behaviour in reactor accident conditions that were performed in a number of research facilities worldwide, is presented. The facilities can be divided into out-of-pile, in-pile and integral ones, the later ones modelling the whole of a reactor cooling system. Emphasis is given not only on quantitative description of release and deposition phenomena but on physico-chemical processes accompanying radioactivity migration in reactor circuits and variety of FP chemical forms as well. (author)