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Radiation Protection Dosimetry Advance Access originally published online on April 8, 2008
Radiation Protection Dosimetry 2008 130(1):34-37; doi:10.1093/rpd/ncn114
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Assessment of the dose from radon and its decay products in the Bozkov dolomite cave

K. Rovenská1,*, L. Thinová2 and V. Zdímal3

1 National Radiation Protection Institute, Bartoskova 28, 140 00-Prague, Czech Republic
2 Faculty for Nuclear Sciences and Physical Engineering, CTU Prague, Brehová 7, 110 00-Prague, Czech Republic
3 Institute of Chemical Process Fundamentals of the AS CR, Rozvojová 2, 165 02-Prague, Czech Republic

* Corresponding author: katerina.rovenska{at}suro.cz

The dose from radon and its progeny remains a frequently discussed problem. ICRP 65 provides a commonly used methodology to calculate the dose from radon. Our work focuses on a cave environment and on assessing the doses in public open caves. The differences in conditions (aerosol size distribution, humidity, radon and its progeny ratio, etc.) are described by the so-called cave factor j. The cave factor is used to correct the dose for workers which is calculated using the ICRP 65 recommendation. In this work, the authors have brought together measured data of aerosol size distribution, unattached and attached fraction activity, and have calculated the so-called cave factor for the Bozkov dolomite cave environment. The dose conversion factors based on measured data and used for evaluating the cave factor were calculated by LUDEP software, which implements HRTM ICRP66.


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