ESR investigation of joint use of dentin and tooth enamel to estimate photon and neutron dose components of a mixed field
Résumé
In the case of mixed photon and neutron field, estimation of photon and neutron dose components from the ESR signal of tooth enamel alone is impossible. To differentiate neutron and photon components using the method described in ICRU 26 for twin chambers, enamel and dentin sensitivities to photon and to neutron were investigated. Enamel and dentin relative sensitivities were, respectively, estimated at 0.03 ± 0.02 and 0.14 ± 0.10 for fission neutrons. Basing on this result, calculation of neutron and photon doses was performed in realistic case of criticality accident. Estimation of neutron and photon dose components was found in good agreement with reference dosimetry. © 2006 Oxford University Press.
Mots clés
Monte Carlo method
neutron dosimetry
neutron radiation
photon
radiation detection
radiation detector
radiation dose
radiation field
radiation measurement
radiosensitivity
sensitivity analysis
Artifacts
Body Burden
Dental Enamel
Dentin
Dose-Response Relationship
Radiation
Electron Spin Resonance Spectroscopy
Equipment Design
Equipment Failure Analysis
Forensic Dentistry
Humans
Materials Testing
Neutrons
Photons
Radiation Dosage
Radiation Protection
Radiometry
Relative Biological Effectiveness
Reproducibility of Results
Sensitivity and Specificity
article
dentin
dose calculation
dosimeter
electron spin resonance
enamel
fission neutron