Adequate gamma-source (Energy: 0,662 MeV) for radioactive decay experiments (half-life determination, radioactive equilibrium). The excited barium, which has a half-life-ideally suited for teaching, is separated from the mother substance caesium by means of an elution solution and collected, e. g.in a tube.

• Free limit source with design approval, in storage box.
• Eluation time approx. 10 s
• Half-life 2.6 min
• Time of decay to 1/1000 of initial activity < 26min
• Eluation frequency 1000
• Incl. eluation solution.

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