|Sep18-12, 10:36 PM||#1|
Internal Conversion Coefficient/Decay % HELP
"In 97.7% of disintegrations 123I decays by electron capture to an excited state of 123Te, which has an energy of 159keV. Gamma rays of energy 159keV are emitted following 82.9% of decays. What's the internal conversion coefficient for this de-excitation?"
I know that a=Ne/Ny(gamma), but I'm kind of confused here about the percentage of the decays of the e- capture & gamma emission. Is it 97.7%/17.1%=5.713?
Any help would be greatly appreciated!
|Oct29-12, 01:44 PM||#2|
gamma emmission 82.9%
rest x-ray emmission + flrorascence yeild
so icc = (17.1/82.9)/ (florascence yeild)
the 97% is just the percentage of time iodine decays through electron capture, we are interested only in tellurium decay!!.
This is for now my understanding
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