Radioactive Sources (set of 3) - SN-8110



Sources are mounted in 2.5 cm diameter sealed plastic disks.

The sources are USNRC License Exempt (US only).  Outside the US, consult local laws and regulations.

  • Po-210, 0.1 µCi, 138 days, alpha
  • Sr-90, 0.1 µCi, 28.6 years, beta
  • Co-60, 1 µCi, 5.27 years, beta and gamma


Included Sources

  • 0.1 µCi, 138 day half-life,α radiation
  • 0.1 µCi 28.6 year half-life, βradiation
  • 1 µCi, 5.27 year half-life, β,γradiation
Stated Uncertainty
  • ± 15%


PASCO Radioactive Source Disclaimer - Please review prior to purchase

Before purchasing PASCO radioactive sources:

Local, national, and international regulations may restrict the purchase, storage, transport, use or disposal of radioactive sources.  Please  consult your local regulations to ensure your compliance before you purchase radioactive sources.

  • PASCO advertised sources are direct shipped to customers from Spectrum Techniques (  Please review their "Terms and Conditions" page before purchasing.
  • Once shipped, purchased sources are "Non-Cancellable" and "Non-Returnable". Radioactive sources cannot be returned under any circumstances including "End of  Life" disposal.


  • PASCO generally advertised sources are USNRC License Exempt (US only). 
  • International exempt sources (per the International Atomic Energy Agency) are  available for international customers or by request.