INTERNAL CONTAMINATION MEASUREMENT J Urine bioassay J Faeces bioassay J Lung in vivo measurement french-nuclear-safety.fr/dosimetric-references 226 Ra Radium 224 Ra Radium Radium EMERGENCY TREATMENT Two treatments are possible. Magnesium sulphate PRESENTATION LAVOISIER MAGNESIUM SULPHATE 15% (0.15 g/ml) solution for IV injection. 20 ml vial containing 3 g of Magnesium sulphate heptahydrate (CHAIX ET DU MARAIS LABORATORY). INDICATIONS Internal contamination by ingestion. DOSAGE Adults: 5 to 10 g by oral route (about 100 mg/kg), i.e. 2 to 3 vials of 20 ml. Sodium alginate PRESENTATION GAVISCON®, oral suspension in 500 mg sachet of Sodium alginate. DOSAGE Adults: 10 g/d. IRSN-INRS radionuclide sheet: Radiation protection: radionucleides. Radium-226 (irsn.fr). to find more PHYSICAL CHARACTERISTICS Radium-224 ( 224Ra ) ▖Radioactive half-life: 3.7 d ▖Main types of radiation emitted: a ▖Decay products: Radon-220 (a), Lead-212 (b- and g) Radium-226 ( 226Ra ) ▖Radioactive half-life: 1,600 years ▖Main types of radiation emitted: a and g ▖Decay products: Radon-222 (a), Lead-210 (b-), Bismuth-210 (b-) SOURCES OF EXPOSURE ▖224Ra: decay product of Thorium-232 ▖226Ra: decay product of Uranium-238 ▖A very wide range of former uses (industry, medicine, etc.) EXPOSURE RISK ▖Irradiation ++ ▖External contamination 0 ▖Internal contamination +++ DOSE COEFFICIENT REFERENCE Effective committed dose per becquerel incorporated, taken from the Order mentioned in Article R. 1333-24 of the Public Health Code: RADIONUCLIDE HANDBOOK • Emergency treatment of internal contamination RH 41
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