Americium is used in smoke detectors, and I assume doping with small amounts of radioactive materials occurs in other applications where encouraging cold sparking or arcing is desired.
Thorium is used in some (arc) welding rods:
https://ehss.energy.gov/SESA/Files/corporatesafety/safety_bu...
https://www.epa.gov/radiation/radionuclide-basics-thorium
Have a great day!
Americium is used in smoke detectors, and I assume doping with small amounts of radioactive materials occurs in other applications where encouraging cold sparking or arcing is desired.
Thorium is used in some (arc) welding rods:
https://ehss.energy.gov/SESA/Files/corporatesafety/safety_bu...
https://www.epa.gov/radiation/radionuclide-basics-thorium
Have a great day!