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Updated: Jul 17, 2026

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
Published on: May 9, 2014
Intercomparison of ionisation chamber measurements from (125)I seeds
J B Davies1, K F Enari, C Baldock
1Australian Nuclear Science and Technology Organisation, New Illawarra Road, Building 23, Lucas Heights, NSW 2234, Australia. jbd@ansto.gov.au
Abstract:
The reference air kerma rates of a set of individual (125)I seeds were calculated from current measurements of a calibrated re-entrant ionisation chamber. Single seeds were distributed to seven Australian brachytherapy centres for the same measurement with the user's instrumentation. Results are expressed as the ratio of the reference air kerma rate measured by the Australian Nuclear Science & Technology Organisation (ANSTO) to the reference air kerma rate measured at the centre. The intercomparison ratios of all participants were within +/-5% of unity.
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