The conversion coefficients for photon radiation are published by the ICRU.
2.
There are theoretical calculations that can be used to derive internal conversion coefficients.
3.
Internal conversion coefficients can be looked up from tables, but this is time-consuming.
4.
Computer programs have been developed ( see the BrIcc Program ) which present internal conversion coefficients quickly and easily.
5.
Then the appropriate operational quantity is derived applying a conversion coefficient that relates the air kerma to the appropriate operational quantity.
6.
For increasing atomic number ( Z ) and decreasing gamma-ray energy, internal conversion coefficients are observed to increase.
7.
Therefore, this excited state of has an internal conversion coefficient of \ alpha = 93 / 7 = 13.3.
8.
At this stage of the analysis it is important to know the internal conversion coefficients for the transitions connecting the known levels.
9.
The internal conversion coefficient is defined as the number of de-excitations via e " emission over those via ? emission.
10.
To first approximation this assumption is valid, upon comparing several internal conversion coefficients for different isotopes for transitions of about 100 keV.