Radioactive Needle Sources

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NS-SR90 NS-PO210 NS-PB210
470220-474EA 42.6 USD
470220-474 470220-472 470220-476
Radioactive Needle Sources
Educational Materials Physics Educational Materials Modern Physics Learning Activities
Quick and easy way to show emission with cloud chambers.

  • Safe to use
  • Easy disposal
Needle sources are used to generate a point source of radiation inside cloud chambers for demonstrating alpha and beta radiation tracks. Three different types of isotopes are offered, a pure alpha emitter, a pure beta emitter and a combined alpha/beta emitter.

The sources are constructed by depositing a small, license exempt quantity of radioactive isotope onto the eye of a standard sewing needle which is mounted on a test tube stopper for insertion into the cloud chamber. The needle and stopper are placed into a test tube for protection during shipping and storage.