Czech results at criticality dosimetry intercomparison 2002.
Two criticality dosimetry systems were tested by Czech participants during the intercomparison held in Valduc, France, June 2002. The first consisted of the thermoluminescent detectors (TLDs) (Al-P glasses) and Si-diodes as passive neutron dosemeters. Second, it was studied to what extent the individual dosemeters used in the Czech routine personal dosimetry service can give a reliable estimation of criticality accident exposure. It was found that the first system furnishes quite reliable estimation of accidental doses. For routine individual dosimetry system, no important problems were encountered in the case of photon dosemeters (TLDs, film badge). For etched track detectors in contact with the 232Th or 235U-Al alloy, the track density saturation for the spark counting method limits the upper dose at approximately 1 Gy for neutrons with the energy >1 MeV.
Frantisek
Spurný
S
Nuclear Physics Institute, Department of Radiation Dosimetry, Czech Academy of Sciences, Na Truhlárce 39/64, 18086 Praha 8, Czech Republic. spurny@ujf.cas.cz
Jaroslav
Trousil
T
D003604:Czechoslovakia; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods; D006801:Humans; D007391:International Cooperation; D009502:Neutrons; D009688:Nuclear Reactors; D011785:Quality Assurance, Health Care / Q000379:methods; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods* / Q000592:standards; D018788:Radioactive Hazard Release; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D012015:Reference Standards; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods* / Q000592:standards; D012307:Risk Factors; D017751:Safety Management / Q000379:methods; D012680:Sensitivity and Specificity