Center for Nuclear Technology Assessment - BATAN
Email: igndjoko@batan.go.id
ABSTRACT
RADIATION EXPOSURE ESTIMATION AROUND THE REACTOR DUE TO LOSS OF COOLANT ACCIDENT (LOCA) ON ABWR. Loss of coolant accident in a nuclear reactor is an accident which is assumed be initialized by a leakage at the primary coolant piping or by a leakage at the reactor vessel. In this accident, the coolant will be released and can be followed by some radioactive fission product release to the primary containment, secondary containment and to the environment. Beside to the environment which be a risk to the public, fission product released also occurred to the control room that will be a risk to the operator. Releasing process, pathway, activity and the exposure dose to the environment and also to the control room are assessed and estimated in this paper. The activity which be released in the primary containment at the first two hours are 2.21E07 Ci for iodine and 3.43E08 Ci for noble gas. The increasing of the environment activity and in the control room are 3.1E04 Ci and 2.0E03 Ci for iodine and 7.0E06 Ci and 1.9E07 Ci for noble gas, respectively.
Keywords : Radiation Exposure, Loss of Coolant Accident, ABWR, Primary Coolant
Published : Proceeding "Presentasi Ilmiah Keselamatan Radiasi dan Lingkungan", Jakarta, 20-21 Agustus 1996, ISSN No. : 0854-4085
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