放射性廃棄物地中処分場周辺のモニタリング, (III)

予知モニタリング系の配備

抄録

A method was discussed to lay out monitoring locations for predicting migration of critical radionuclides around a radioactive waste burial site by detecting predictor materials. A case study was done to allocate the monitoring locations around an assumed waste burial site by using ⁹⁰Sr as a critical radionuclide and ⁹⁰Y as a predictor material. Possible displacement of monitoring locations with design parameters such as time interval of monitorings is also discussed.
Some instructive results were obtained as follows: (1) The method discussed and proposed in this paper is feasible to get reasonable lay-out of monitoring locations. (2) Time required for detecting a predictor material could be reduced more by the shorter time interval of monitorings. (3) Number of monitoring locations could be reduced more by an analytical technique with lower detection limit.