Abstract

The albedo dosimetry has been carried out in personal neutron monitoring in the MOX fuel plants of JNC Tokai Works. However, it has shortcomings mainly due to the inherently poor energy response. To overcome these difficulties in practical use of albedo dosemeters, the following four subjects have been studied: (1) the neutron energy response functions of albedo TLD obtained from the mono-energetic neutron irradiation experiments and the Monte-Carlo calculations, (2) the participation in the international personal neutron dosimetry intercomparison program, (3) the location-dependent correction factors calculated from the response functions and neutron energy spectra measured in the workplaces, and (4) the operational comparison of TLD albedo dosemeters and solid state etched tracks detectors worn by workers engaged in the fabrication process of the MOX fuel. This paper briefly summarizes our research activities on thermoluminescence neutron dosimetry over a period of 20 years.

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