The records of radiation control division, no.25(1988)

In this report, a general review of the daily activities and managements of The Division of Radiation Control, Research Reactor Institute, Kyoto University, in 1988, is described, and it is published as 'The Radiation Control Report: No. 25'. As the special matters, two big troubles of the reactor (KUR) arose; one was a leakage of the secondly cooling water from the heat exchangers, and the other was leakage of heavy water containing tritium from the heavy water thermal column for the neutron irradiation facility. For the repairs of these troubles, staffs of the Division of Radiation Control made their great efforts including radioactivity measurements of the leaked waters and air bones, and also radiation dose of the workers for the repairs of these facilities. These activities continued for more than one year. At present time, the repairing works are proceeding favorably and will complete within a few month. From the academic year from April of 1989, the new rules for the handlings of the radiation and radioactive substances will be enforced. Accordingly, in this year, 1988, the staffs of The Division of Radiation Control are making great efforts for the pretreatments to such situation. (author)