This Cs-137/Ba-137m Isotope Generator is used to conduct experiment in schools and universities to demonstrate the properties of radioactive decay. Based on the original Union Carbide patented design, it offers exceptional performance combined with ease of use and safe operation.
Each generator contains 10uCi. of Cs-137 which represents one Exempt Quantity making if free from specific State and Federal licensing.
The generator can produce up to 1000 small aliquots of the short lived Ba-137m isotope with a half-life of 2.6 minutes. Each generator is supplied with 250 ml of eluting solution (0.9% NaCl) and additional solution may be ordered separately.
The parent isotope Cs-137 with a half-life of 30.1 years beta decays (94.6%) to the metastable state of Ba-137m. This further decays by gamma emission (662 keV) with a half-life of 2.6 minutes to the stable Ba-137 element. During elution, the Ba-137m is selectively "milked" from the generator leaving behind the Cs-137 parent.