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Radiation Protection Dosimetry Advance Access published online on April 3, 2008
Radiation Protection Dosimetry, doi:10.1093/rpd/ncn085
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

DOSEMETER READINGS AND EFFECTIVE DOSE TO THE CARDIOLOGIST WITH PROTECTIVE CLOTHING IN A SIMULATED INTERVENTIONAL PROCEDURE

F. W. Schultz* and J. Zoetelief

Delft University of Technology, Applied Sciences, Mekelweg 15, 2629 JB Delft, The Netherlands

* Corresponding author: f.w.schultz{at}tudelft.nl

A personal dosemeter issued for individual monitoring is calibrated in terms of personal dose equivalent, usually HP(10). In general it yields a reasonable estimate of effective dose (E) when the exposed person does not wear protective clothing. In interventional cardiology, however, a lead equivalent apron is worn and often a thyroid collar. A correction factor will then be necessary to convert a dosemeter reading to E. To explore this factor an interventional cardiology procedure is simulated based on exposure conditions typical for a modern hospital in the BENELUX area. The dose to the cardiologist is investigated using Monte Carlo simulation of radiation transport. It is concluded that a personal dosemeter may best be worn outside the apron at a central position high on the chest for least dependence on the beam direction. It will overestimate E by roughly a factor of 20 (apron and thyroid collar of 0.25 mm Pb).


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