Radiation Protection Dosimetry Advance Access originally published online on March 3, 2007
Radiation Protection Dosimetry 2007 125(1-4):383-386; doi:10.1093/rpd/ncm159
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Operational comparison of TLD albedo dosemeters and solid state nuclear tracks detectors in fuel fabrication facilities
Radiation Protection Division, Japan Nuclear Cycle Development Institute 4-33, Tokai, Ibaraki 319-1194, Japan
*Corresponding author: tsujimura.norio{at}jaea.go.jp
The authors carried out an operational study that compared the use of TLD albedo dosemeters and solid state nuclear tracks detector in plutonium environments of Japan Nuclear Cycle Development Institute, Tokai Works. A selected group of workers engaged in the fabrication process of MOX (Plutonium-Uranium mixed oxide) fuel wore both TLD albedo dosemeters and solid state nuclear tracks detectors. The TL readings were generally proportional to the counted etch-pits, and thus the dose equivalent results obtained from TLD albedo dosemeter agreed with those from solid state nuclear tracks detector within a factor of 1.5. This result indicates that, in the workplaces of the MOX fuel plants, the neutron spectrum remained almost constant in terms of time and space, and the appropriate range of field-specific correction with spectrum variations was small in albedo dosimetry.