HALF LIFE

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  • The UW radioactive materials license requires a minimum of 10 half lives and no detectable counts above background before disposal as normal trash.
  • Make sure all radiation tri-foils and labels are destroyed by obliterating them or removing them.
  • If the material is also hazardous or biological but decayed, dispose of appropriately.
  • The UW only allows decay in storage for radionuclides with half-life < 120 days.


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