7D10.20 - Half Life - Isotope Generator

Code Number:
Demo Title:
Half Life - Isotope Generator
Natural and Artificial Radioactive Sources
Area of Study:
Modern Physics
Nucleus counter and tube, isotope generator and kit, eluting solution.

Force about 1 ml of the eluting solution through the generator and collect 7 or 8 drops of the passed solution in one of the planchets.  Immediately place disk in the tube holder and start the counter.  Counting will be done for 10 thirty-second intervals for a total of 5 minutes.  The half life of Barium 137M is 2.55 minutes (2 min, 33 sec).  With a 661.6 keV gamma ray being emitted.

NOTE: Background count should be determined before sample counting begins.

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