- How to calculate half life
Main Question or Discussion Point
How did they calculate the half life of xenon 124 to be longer than the age of the universe if they only observed one decay??? Is there some way to estimate half life???
In addition to what was already said, where does this come from? According to the article (https://www.nature.com/articles/s41586-019-1124-4), this is not just based on one event.if they only observed one decay
If I understand correctly, it is just the natural abundance in the detector. You only get ~ 0.1% Xenon 124, but then you take a ton of Xenon.that they get enough isotopes, especially if they are created synthetically.
There is only one isotope of relevance, 124-Xe. The issue is getting enough nuclei of that isotope.get enough isotopes
For the future, you should remember to include a reference to the original paper when you have a particular issue that you want to discuss. In this case, the appropriate reference would have been the Nature paper.Yes, however, the half life of xenon 124 is 1 trillion times the current age of our universe and was just reported to be observed yesterday for the very first time, ever. How did they calculate the half life based on one observation???
I had encountered another element recently with an equally absurd half time and it wasn't natural, or extremely rare. Unfortunately I have forgotten which one. I only remember that I asked myself the same question, and a high number of isotopes didn't seem to provide a solution. The only other possibility was an extremely long observation time, but it made me wonder, whether there are other methods, maybe theoretical calculations.There is only one isotope of relevance, 124-Xe. The issue is getting enough nuclei of that isotope.