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IRMF/IPEM Diagnostic X-ray Intercomparison Jan 2007 -

This document details the IRMF/IPEM diagnostic X-ray intercomparison held in January 2007, focusing on measurements conducted by hospital medical physicists and QA radiographers. Key highlights include the use of uniform radiation conditions as per IEC 61267, comparing radiation beams from various sources like mammography and standard X-ray beams. The equipment involved included Keithley ion chambers and semiconductor photodiodes for precise measurement. The report touches on equipment traceability, uncertainty estimation, and the impact of generator waveform on energy response.

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IRMF/IPEM Diagnostic X-ray Intercomparison Jan 2007 -

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  1. IRMF/IPEM Diagnostic X-ray Intercomparison Jan 2007 - Participants: Hospital Medical Physicists/Clinical Scientists QA Radiographers

  2. IEC 61267 Medical diagnostic x-ray equipment – radiation conditions for use in the determination of characteristics Uniform sets of radiation conditions RQR: Radiation beam emerging from x-ray set RQA: Radiation beam emerging from patient RQR-M Mammography x-ray beams Standard X-ray beams…..

  3. Compare beams?

  4. Tertiary standard (loaned by RRPPS): Keithley 15cc & 150cc ion chambers Likely equipment used by participants: ion chambers semiconductor photo diode (Pb backing) in combination with kV measuring capabilities (multimeter) Equipment

  5. Traceability? Ion chamber v photodiode? Estimation of uncertainty? Effects of generator/waveform? energy response? Results?

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