The radiation dose of the environmental radiac dosimeter and environmental

摘要

PROBLEM TO BE SOLVED: To provide an environmental radiation dosimeter capable of specifying the direction of radiation generating source and excellent in measurement precision, and to provide an environmental radiation management system capable of specifying the radiation generating position.;SOLUTION: A radiation detector part 2a is mounted on a direction changing part 3 on four outer peripheral faces where a plurality of sub detectors having a large sensitivity to the frontal radiation rays incident on the sub detectors perpendicularly are arranged toward outside, respectively, from the counting ratio of each sub detectors the direction of incident radiation rays are specified, and the front face of the radiation detector part 2a is made to face to the specified direction by turning a turn table 32. Moreover, the position of radiation generating source can be specified by distributively arranging the plurality of the environmental dosimeters, and by operation processing the directional data obtained by these dosimeters.;COPYRIGHT: (C)2005,JPO&NCIPI