Drainage winds in dry areas
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As night falls in dry areas, the hills cool off faster than the low areas.
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The resulting cool air flows down the valleys in the form of "drainage winds".
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Solid radon daughters (polonium-218 and polonium-214) can be detected in these "drainage winds".
Sampling is done at night by passing a stream of air through a filter and counting the alpha
activity in our instrument.
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Anomalous levels of radon daughters can lead to uranium rich areas and ore deposits.
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Readings are available immediatley in the field.
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INSTRUMENTS
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We measure: radon - radium - thoron - radon daughters - alpha radiation.
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The Lucas cell is recognized as the most sensitive and reliable method for these elements.
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Our instruments are used around the world in exploration for uranium, oil & gas, groundwater and hydrothermal,
and in health physics, earthquake prediction, and evaluation of hydrocarbon and NAPL contamination.
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In the radon business since 1968, our latest major instrument update was 2011.
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Modern, low-power, field-rugged electronics.
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Sensitive to geochemical trace levels necessary for radon in lake water and for radon-thoron isotope ratios.
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Can work in a tent without electricity or be carried from point to point in the field.
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40 readings per day. Results available immediately.
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Can be operated by junior personnel if carefully supervised.
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Same instruments used for radon and radium in soil, sediment,
plant parts, rocks, water, soil gas, air, and snow, and for radon daughters in air.
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Click here for pictures of instruments.
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Click here for or other instruments, components and
assessories we provide
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For instruments contact
R.H. Morse & Associates Ltd.
1-416-269-9979
morse@finderschoice.com
skype: robert.morse.toronto
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Multilingual consulting and training (if required).
Robert H. Morse, Ph.D., P.Eng.
September 15, 2008
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