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en.wikipedia.org/wiki/Tungsten

Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. .... All of the remaining radioactive isotopes have half-lives of less than 3 hours, and most of these have half-lives below 8 minutes. Tungsten also ...

www.pro-fusiononline.com/tungsten/radioactivity.htm

The Thorium used in 2% thoriated tungsten is a radioactive element and therefore can be dangerous to the health of those exposed to it and to the environment.

www.twi-global.com/technical-knowledge/faqs/health-and-safety-faqs/faq-the-use-of-thoriated-tungsten-electrodes

Tungsten electrodes are used when arc welding with the Tungsten Inert gas (TIG) ... Thorium (Th) is slightly radioactive with a long half life and emits mainly ...

www.answers.com/Q/Are_tungsten_rings_radioactive

Tungsten which as a Industrial Metal for drills and so on may content so harmness or radioactive element, such like Cobalt. But the tungsten ring made for  ...

www.encyclopedia.com/science-and-technology/chemistry/compounds-and-elements/tungsten

About a dozen radioactive isotopes of tungsten are known also. A radioactive isotope is one that breaks apart and gives off some form of radiation. Radioactive  ...

www.chemistryexplained.com/elements/T-Z/Tungsten.html

One of tungsten's unusual properties is its very high melting point of 3,410°C ( 6,170°F). This is ... About a dozen radioactive isotopes of tungsten are known also.

www.thefabricator.com/blog/why-i-still-use-2-percent-thoriated-red-tungsten

Feb 5, 2015 ... Despite concerns some have about radiation emanating from 2 percent thoriated (red) tungsten electrodes, welder Josh Welton sees little risk.

.ask.com/youtube?q=Is+Tungsten+Radioactive&v=PqDX282z8gg
May 2, 2010 ... Measuring beta radiation with Terra-P pocket rad meter from thoriated tungsten electrode.

www.thefabricator.com/article/arcwelding/guidelines-for-tungsten-electrodes

Mar 7, 2006 ... The electrode choices are pure tungsten, 2 percent thoriated, 2 percent ... Note: Thorium is radioactive; therefore, you must always follow the ...

.ask.com/youtube?q=Is+Tungsten+Radioactive&v=2mvG-_z-MT4
May 22, 2012 ... I thaught id share how radioactive the Thoriated Tungsten electrodes are we use at work. These are 2% Thoriated. We use them ever day, grind ...