25 lines
1.2 KiB
Plaintext
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.
|