Thoron versus Radon: Comparison of Measured Progeny Aerosol Size Distributions
نویسندگان
چکیده
منابع مشابه
Comparative analysis of radon, thoron and thoron progeny concentration measurements
This study examined correlations between radon, thoron and thoron progeny concentrations based on surveys conducted in several different countries. For this purpose, passive detectors developed or modified by the National Institute of Radiological Sciences (NIRS) were used. Radon and thoron concentrations were measured using passive discriminative radon-thoron detectors. Thoron progeny measurem...
متن کاملRadon and Thoron Progeny Measurements in Dwellings of Northern Greece
Radon progeny concentration is measured with a total alpha counting system in 185 dwellings in the town of Thessaloniki. The Equilibrium Equivalent radon Concentration (EEC Rn) follows a lognormal distribution with an arithmetic and geometric mean value of 28 Bq/m and 16 Bq/m respectively. Simultaneous in situ alpha and gamma spectroscopy measurements were performed in 60 schools of Thessalonik...
متن کاملMeasurements of indoor radon, thoron and their progeny in Farrukhabad city of Uttar Pradesh, India
Background: More than 50% of the total dose received by human beings from all sources of radiation (both from natural and manmade) comes from radon and its progeny which is responsible for lung cancer in many cases. Materials and Methods: In the present study, the measurements have been carried out by using twin chamber dosimeter cups with LR-115 type-II detectors. The value of track ...
متن کاملSimultaneous measurements of indoor radon, radon-thoron progeny and high-resolution gamma spectrometry in Greek dwellings.
Simultaneous indoor radon, radon-thoron progeny and high-resolution in situ gamma spectrometry measurements, with portable high-purity Ge detector were performed in 26 dwellings of Thessaloniki, the second largest town of Greece, during March 2003-January 2005. The radon gas was measured with an AlphaGUARD ionisation chamber (in each of the 26 dwellings) every 10 min, for a time period between ...
متن کاملSize Distribution of Radon Progeny Aerosol in the Working Area of a Dry Former Uranium Mine
To provide improved particle size data for reconstructing the radiation dose incurred by Colorado plateau uranium miners, sampling exercises were made in 1988 and 1994 at Twilight Mine in western Colorado, a former uranium mine that is now used as a research and training facility. The strategy was to simulate or approximate some of the conditions to which the miners were exposed, then sample th...
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ژورنال
عنوان ژورنال: Aerosol Science and Technology
سال: 1994
ISSN: 0278-6826,1521-7388
DOI: 10.1080/02786829408959682