Determining The Half Life Of Ba-137M

De bournining the Half Life of Ba-137m With this research lab we be overtaking to be calculating the half(a)(prenominal)(prenominal) spirit of the substance Ba-137m in class. First we take on to understand the term half animatenesstime. The term: half life is the time parameter that physicists pull to the fair time it takes for half of the radioactive atoms in your precedent to downslope into another cistron. The sample size does not upshot beca utilization this is a statistical process. Not all atoms change at in one case but since there are a huge telephone number of them, half of them go forth eventually change into another element within the half life time. For example uranium isotope U-238 has a half life of approximately 4.4 billion years. Some isotopes, much(prenominal) as radon-222 have a half life of less(prenominal)(prenominal) than 4 days. The shorter the half life, the more clicks go away be registered with the Geiger counter. In our lab experiment we go out imagine the half life of Ba-137m. This meta changeless radioactive isotope has a half life of less than three transactions and is make from the radioactive crumble of Cs-137 in a mini-isotope generator. The Isotope Generator contains Cs-137 as the long-wearing parent nuclide which has a half life of 30.25 years. The Ba-137m is formed by the disintegration of Cs-137 or the emission of beta radiation. The m in Ba-137m means that the core group of the newly formed atomic number 56 atom is in an mad state. Approximately 5% of the stable isotope Ba-137 is made and 95% of the Ba-137m is made. in conclusion all of the stirred up Ba-137m turns into stable Ba-137 within 15 minutes since the half life of the Ba-137m is so short, less than three minutes. For this lab we will use a Geiger counter to detect the decay of the atomic marrow by sensing the ionization tracks made by the Ba-137m decaying and emitting da Gamma rays which can be de tected with the Geiger counter. To actu! alize this experiment we will look at the activity of the sample as a function of time. The first thing that we need to do is study a reading of the background count to...If you want to get hold of a full essay, order it on our website: OrderCustomPaper.com

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