If you have questions about the availability of large sources, please contact the Tufts University Radiation Safety Officer at 617 636-3450.  In Boston you may also contact the Health Physics Group at x66168 or 617-636-6168. 

In Medford/Somerville or Grafton, please contact the Tufts Radiation Safety Officer at x63450 or 617-636-3450.

Please note that special authorization procedures must be completed to use certain sources at Tufts.