Status of neutron reaction cross sections of fission products in the energy range of resolved and unresolved resonances

The purpose of this paper is to summarize the present ''State of Art'' concerning the data on fission products cross sections in the energy range varying from thermal energy to about 100 Kev. The advantages and inconveniences of the various experimental methods and evaluation techniques have been examined in detail. As a result some methods are considered more suitable than others. In the case of sever disagreements between results, some solutions have been proposed. It would appear from this review that the needs of reactor physicists concerning informations on the most important fission products in thermal and fast reactors are, in general, largely satisfied. (author)