Review of data and methods recommended in the international code of practice IAEA technical reports series no. 277, absorbed dose determination in photon and electron beams. Proceedings of a consultants meeting

摘要

After an initial period of use of TRS 277, research in the field of radiotherapy dosimetry indicated the need for a review of the data and procedures recommended in the International Code of Practice, and an analysis of the possible impact of new developments. An international working group was formed, which met at the end of 1992, to review the status of the Code of Practice. The working group surveyed scientific results on topics related to TRS 277, recommending that in certain cases important changes ought to be made, whereas in other situations it was considered that ignoring new developments would not significantly affect the dosimetry of radiotherapy patients. The dosimetry of kilovoltage X rays deserved special attention, and the recommendations included changes in the data of TRS 277 up to 7% which could have important clinical consequences. In all cases the users of the Code of Practice should be made aware of the changes in dosimetry recommendations resulting from the new findings. A booklet entitled ''Working material'', which included a summary with main recommendations and reviews on different topics of ionization chamber dosimetry (used as sources for the recommendations), was prepared by the IAEA Dosimetry Section responsible for the preparation of the publication of the International Code of Practice. In order to expand the dissemination of the changes to the recommendations of TRS 277 this material is now published as the present IAEA-TECDOC. Refs, figs, tabs. (Atomindex citation 28:013121)