External audits of electron beams using mailed TLD dosimetry: preliminary results
| Autor: | Bernard J. Davis, Igor Gomola, A. Dutreix, Dominique Huyskens, Jan Van Dam, Jan Verstraete, Josep Isern-Verdum, R. Reymen |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
medicine.medical_specialty
Cobalt Radioisotopes Quality Assurance Health Care Audit Humans Dosimetry Medicine Radiology Nuclear Medicine and imaging Medical physics Postal Service Medical Audit Group trial Radiotherapy business.industry Radiotherapy Dosage Hematology Europe Oncology Feasibility Studies Thermoluminescent Dosimetry Thermoluminescence dosimetry Thermoluminescent dosimeter Radiopharmaceuticals business Nuclear medicine Quality assurance Beam (structure) |
| Zdroj: | Radiotherapy and Oncology. 58:163-168 |
| ISSN: | 0167-8140 |
| DOI: | 10.1016/s0167-8140(00)00265-6 |
| Popis: | Aim : A feasibility study has been performed to investigate the possibility of using mailed thermoluminescence dosimetry (TLD) for external audits of clinical electron beams in Europe. Methods : In the frame of the EC Network Project for Quality Assurance in Radiotherapy, instruction sheets and mailing procedures have been defined for mailed TLD dosimetry using the dedicated holder developed by a panel of experts of the International Atomic Energy Agency (IAEA). Three hundred and thirty electron beam set-ups have been checked in the reference centres and some local centres of the EC Network Project and in addition through the centres participating to the EORTC Radiotherapy Group trial 22922. Results : The mean ratio of measured dose to stated dose is 0.2% and the standard deviation of measured dose to stated dose is 3.2%. In seven beam set-ups, deviations greater than 10% were observed (max. 66%), showing the usefulness of these checks. Conclusion : The results of this feasibility study (instruction sheets, mailing procedures, holder) are presently endorsed by the EQUAL-ESTRO structure in order to offer in the future to all ESTRO members the possibility to request external audits of clinical electron beams. |
| Databáze: | OpenAIRE |
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