Bulletin of the Research Laboratory for Nuclear Reactors

In this bulletin, 57 reports of the research activities are collected. First, 18 reports in the Energy Engineering Division which are focused on the reactor cores, reactor physics, reactor fueling are described. Secondly, 20 reports in the Mass Transmutation Engineering are collected. Especially, these reports describe the isotope separation and exchange, isotope enrichment, electrode or electrochemical behavior, and so on. Thirdly, 15 reports in the System and Safety Engineering Division are collected. These reports describe reactor safety (especially of fast breeder reactor), and fusion reactor safety. Lastly, 4 reports in the Co-operative Researches, are described. In addition, list of publications are included. (J.P.N.)