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AlanFord / ZapMeNot

Python library for simple point-kernel photon shielding analyses
GNU General Public License v3.0
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Isotopes with daughters #2

Closed AlanFord closed 2 years ago

AlanFord commented 4 years ago

Some parent isotopes have daughters with short half lives. In those instances where no photons are listed for the parent isotopes, this is significant. Add a link in the isotopes library to identify daughter isotopes and permit including them in secular equilibrium.

AlanFord commented 2 years ago

Key parent isotopes where this can be an issue appear to be Ba-140, Cs-137, Ce-144, Ru-106, Sr-90, Sn-113, and Ru-103.

AlanFord commented 2 years ago

Resolved by adding an option in the source class to include selected progeny in either secular or transient equilibrium. This is only included as an option because some source terms (e.g. those generated by ORIGEN) may already explicitly include the progeny.