Budget alternative from Spectrum Techniques for extracting radioactive samples for experiments in determining half lives. Contains Cs-137, which mainly beta-decays to Ba-137m, which then decays by gamma emission to Ba-137. The half life of Ba-137 is approx. 2.6 minutes. Approx. 1,000 experimental doses of Ba-137 can be generated. Decays by gamma emission. After 30 mins, the activity of the extracted sample is approx. 4 Bq and it can be flushed away.
Supplied with 250 mL of eluting solution, plastic syringe and 10 aluminium dishes.