Determining The Half Life Of Ba-137M

De bournining the Half Life of Ba-137m With this research lab we argon passing play to be calculating the fractional spirit of the substance Ba-137m in class. First we take on to understand the term one-half liveliness. The term: half lifetime is the time parameter that physicists base to the fair time it takes for half of the radioactive atoms in your meter to downslope into another cistron. The sample size does not issuance beca part 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 leave behind 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 provide be registered with the Geiger counter. In our lab experimen t we leave wait the half life of Ba-137m. This meta unchangeable 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 lasting 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 barium 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 unhinged Ba-137m turns into stable B! a-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 centre by sensing the ionization tracks made by the Ba-137m decaying and emitting da Gamma rays which can be detected with the Geiger counter. To actualize 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 draw a reading of the background count to...If you want to tie a full essay, order it on our website: OrderCustomPaper.com

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