Files
geant4/examples/extended/radioactivedecay/rdecay01/UserData/RadioactiveDecay-readme
T
2016-06-09 17:01:34 +02:00

25 lines
1.2 KiB
Plaintext

Lines beginning with either a 'W' or a '#' are comments
Lines beginning with a 'P' are a header which describes a level of the
nucleus. The first number is the excitation energy in keV, the second is the
half life in seconds
Indented lines under the 'P' lines are decay modes for that
excitation. There are two type of records here, distinguished by the
number of columns.
If there are 3 columns only, this is a header which describes all
decays of that type from this level.
The first column is the decay mode, the second column is zero, and the
third column in the branching ratio to this mode, as a fraction of
unity. Therefore, the third columns of all the 3-column records under
a given 'P' line should sum to 1.0.
If there are four columns, this is a record which describes a subset
of the decay type, specific to a given lower level in the daughter
species. The first column is the decay type, the second column is the
excitation level of the daughter (in keV), and the third column is the
branching ratio as a percentage (! note... not a fraction of unity) of
the total branching ratio which came from the 3-column record for this
decay.