Your Safer Source for Science

Since 1977

Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Fax 866-452-1436

Item #: AP8796

Price: $314.00

Ships directly from the manufacturer.

Use these radioactive sources to compare different types of radiation. The isotope name, type of radiation, activity in microcuries and half life is written on each sealed disc.

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This item can only be shipped to schools, museums and science centers

Other Options

Item# AP8795 AP8797 AP8794 AP8796
Type Cobalt-60 Thallium-204 Polonium-210 Set of Three Sources
Price $139.00 $139.00 $139.00 $314.00
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Product Details

Completely safe for use in the science laboratory! Each source is mounted in a one-inch diameter sealed disc and is completely safe for student use. Three radioactive sources are available: Alpha, Beta and Gamma. Perfect for showing the different properties of all types of radiation. For instance, students will be able to see that alpha particles can be blocked very easily yet gamma rays are nearly impossible to block. The isotope name, type of radiation, activity in microcuries and half life are written on each sealed disc.

You may purchase three types of radioactive sources separately.

Nuclide Activity Half Life  Type of Radiation
Polonium-210 0.1 μCi 138 days Alpha
Thallium-204 1.0 μCi 3.78 years Beta
Cobalt-60 1.0 μCi 5.27 years Gamma
Strontium-90 0.1 μCi 28.6 years Beta


Set of three (Cobalt-60, Polonium-210 and Strontium-90). Best if used within four months of delivery due to half life of polonium.