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2. Radon mitigation - Wikipedia

   en.wikipedia.org/wiki/Radon_mitigation

   Testing for radon in the air is accomplished using passive or active devices placed in the building. Some devices are promptly sent to a laboratory for analysis, others calculate the results on-site including digital Radon detectors. Radon-in-water testing requires a water sample being sent to a laboratory.

3. Radon - Wikipedia

   en.wikipedia.org/wiki/Radon

   Radon detection devices are commercially available. Digital radon detectors provide ongoing measurements giving both daily, weekly, short-term and long-term average readouts via a digital display. Short-term radon test devices used for initial screening purposes are inexpensive, in some cases free.

4. History of radiation protection - Wikipedia

   en.wikipedia.org/wiki/History_of_radiation...

   Radon experiments at the Radium Institute in Paris, 1924. Radon is a naturally occurring radioactive noble gas discovered in 1900 by Friedrich Ernst Dorn (1848-1916) and is considered carcinogenic. Radon is increasingly found in areas with high levels of uranium and thorium in the soil. These are mainly areas with high granitic rock deposits.

5. Health effects of radon - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_radon

   The health effects of radon are harmful, and include an increased chance of lung cancer. Radon is a radioactive, colorless, odorless, tasteless noble gas, which has been studied by a number of scientific and medical bodies for its effects on health. A naturally-occurring gas formed as a decay product of radium, radon is one of the densest ...

6. Super-Kamiokande - Wikipedia

   en.wikipedia.org/wiki/Super-Kamiokande

   The Super-Kamiokande (SK) is a Cherenkov detector used to study neutrinos from different sources including the Sun, supernovae, the atmosphere, and accelerators. It is also used to search for proton decay. The experiment began in April 1996 and was shut down for maintenance in July 2001, a period known as "SK-I".

7. Radium dial - Wikipedia

   en.wikipedia.org/wiki/Radium_dial

   A 1950s radium clock, exposed to ultraviolet light to increase luminescence. Radium dials are watch, clock and other instrument dials painted with luminous paint containing radium-226 to produce radioluminescence. Radium dials were produced throughout most of the 20th century before being replaced by safer tritium -based luminous material in ...