title: Comparison of graphite-to-water absorbed-dose transfers for 60Co photon beams using ionometry and Fricke dosimetry.
abstract: To derive the absorbed dose to water from a standard of absorbed dose to graphite, the metrology laboratories which apply such a method usually make use of cavity ionization chambers as transfer instruments. In addition, the BNM-LPRI has tested, as such instruments, two types of Fricke dosimeter in its cobalt-60 beam. The two procedures are compared and their results are found to be in good agreement (the difference is less than 0.1%). Both procedures are then taken into account for the calculation of the reference value of absorbed dose to water.
authors.affiliation: BNM-LPRI (Laboratoire Primaire des Rayonnements Ionisants), CEA/Saclay, Gif-sur-Yvette, France.
authors.forename: B
authors.initials: B
authors.lastname: Chauvenet
authors.forename: D
authors.initials: D
authors.lastname: Baltès
authors.forename: F
authors.initials: F
authors.lastname: Delaunay
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D006108:Graphite; D008962:Models, Theoretical; D017785:Photons / Q000627:therapeutic use; D011839:Radiation, Ionizing; D011874:Radiometry; D012016:Reference Values; D014867:Water
chemical_list: D003037:Cobalt Radioisotopes; D014867:Water; D006108:Graphite