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Created page with "The position at which the cumulative air kerma for interventional x-ray equipment is measured in order to reasonably represent the air kerma incident on the patient’s skin s..."
The position at which the cumulative air kerma for interventional x-ray equipment is measured in order to reasonably represent the air kerma incident on the patient’s skin surface. For isocentric fluoroscopes (C-arms) the patient entrance reference point is defined (IEC 2010) as lying on the central axis of the x-ray beam 15cm from the isocentre in the direction of the focal spot. ([[ICRP Publication 135]], 2017)
''[[ICRP Glossary]] entry - May 2019''
''[[ICRP Glossary]] entry - May 2019''
