We are delighted to announce that DURRIDGE Chief Scientist, Dr. Stephen Sadler, will give a talk entitled "Measuring Radon in Water with the DURRIDGE RAD7 Continuous Radon Monitor" at the Ra-Rn Workshop, taking place online and in person in Xiamen, China from 6 - 10 June 2022.
The 8th International Ra-Rn Workshop provides a forum for presentations and open discussions regarding the latest developments and new directions in the application and measurement of Ra and Rn isotopes as environmental tracers.
Stephen's talk will illustrate, with examples, how to choose the right RAD7 accessory for your radon-in-water measurements, how to get the most out of the instruments, and how to avoid common pitfalls. Register today - it's free!
Good Reads
Mining activities are known to contribute immensely to human exposure to ionizing radiation of terrestrial origin. 222Rn activity concentrations in the ground and surface waters were analyzed at a berylium mining site using a calibrated RAD7-active electronic detector with the Big Bottle System accessory. The fact-findings from the mean Radon concentration and the estimated annual effective doses for adults, children, and infants reveals values that were mostly above the recommended limits set by regulatory bodies. To learn more, click here: Radiological impact of mining: new insight from cancer risk assessment of radon in water
Did You Know?
CAPTURE (Durridge's graphing and analysis software) includes a Chart Recorder that displays real-time graphs of RAD7 data as they are recorded. While a radon test is running, a set of virtual pens plot radon concentration, temperature, and humidity data corresponding to dates and times on a scrolling display. With a button bar for starting and stopping tests and configuring RAD7 settings, Chart Recorder is easy to use yet powerful. Below the button bar is a robust dashboard showing details about the current state of the RAD7. In addition, a panel on the left provides various options for controlling how data is shown in the graphing window. Learn more about this powerful real-time graphing tool here: CAPTURE Chart Recorder.
DURRIDGE Tip
Boating with your RAD7? The RAD AQUA is designed to serve the needs of oceanographers making radon surveys with RAD7, by boat, of coastal zones and lakes. In a stationary boat it is simple to hang a bilge pump over the side to the depth of interest. But when the boat is moving there is a lateral force on the pump that may force it towards the stern and consequently bring it closer to the surface. How to solve this problem?
A long tether, running from the near the bow, will stop the pump from swinging to the stern, when the boat is under way. If the pump is heavy enough, or if a weight is added, this tether may be enough. Another tether, from the near the stern, will support the pump when the boat is stationary. A stiff pole could be used, with the tether, to keep the pump at a fixed depth, regardless of the boat speed.
The Iowa Senate voted unanimously to approve House File 2412, which would require radon testing and mitigation in Iowa schools. The Gail Orcutt School Radon Safety Bill (named after a beloved retired teacher who died of radon-induced lung cancer) now heads to the governor’s desk.
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