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2. Fluorescent lamps and health - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamps_and_health

   An open (single envelope) CFL [12] An encapsulated/closed (double envelope) CFL. Some fluorescent lamps emit ultraviolet radiation. [citation needed] The Health Protection Agency of the United Kingdom has conducted research concluding that exposure to open (single envelope) compact fluorescent lamps (CFLs) for over 1 hour per day at a distance of less than 30 cm can exceed guideline levels as ...

3. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   A 2012 study comparing cellular health effects of CFL light and incandescent light found statistically significant cell damage in cultures exposed to CFL light. Spectroscopic analysis confirmed the presence of significant UVA and UVC radiation, which the study's authors conjectured was attributable to damage in the bulbs' internal phosphor ...

4. Gas-filled tube - Wikipedia

   en.wikipedia.org/wiki/Gas-filled_tube

   The F-H region is a region of glow discharge; the plasma emits a faint glow that occupies almost all the volume of the tube; most of the light is emitted by excited neutral atoms. The I-K region is a region of arc discharge; the plasma is concentrated in a narrow channel along the center of the tube; a great amount of radiation is produced.

5. Radiation detection - Wikipedia

   en.wikipedia.org/wiki/Radiation_detection

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6. How OSU physicists developed a radiation detector aboard the ...

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7. Ludlum Measurements - Wikipedia

   en.wikipedia.org/wiki/Ludlum_Measurements

   The company is based in Sweetwater, Texas and was founded in 1962 by Don Ludlum (1932-2015) who had previously worked for Eberline, another manufacturer of radiation detectors. [1] Geiger counters manufactured by the company are recognized as a standard reference instrument in the fields of occupational safety where exposure to ionizing ...

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9. Plasma lamp - Wikipedia

   en.wikipedia.org/wiki/Plasma_lamp

   When the electron falls back to its original state, it emits a photon, resulting in visible light or ultraviolet radiation, depending on the fill materials. The first commercial plasma lamp was an ultraviolet curing lamp with a bulb filled with argon and mercury vapor developed by Fusion UV .