# Keyword:TAB4

TAB4 id

This keyword causes the gamma-ray spectrum (in MeV per second) in the 24-energy group format (or 22-group format if the GROUP parameter is 1) to be written to an external file (TAB4). Note that the stream number id is now ignored. Both NOT4 and TAB4 may be used several times during a run to restrict and restore the output as required.

Example usage, where TAB4 output to the <fileroot>.tab4 file is turned on and off over several steps:

< -- Control phase -- >
...
FISPACT
* Title of the simulation
< -- Initial phase -- >
...
TAB4
FLUX 1.0E10
ATOMS
< -- Inventory phase -- >
TIME 1.0 HOURS ATOMS
NOT4
TIME 1.0 HOURS ATOMS
TAB4
TIME 1.0 HOURS ATOMS
NOT4
TIME 1.0 HOURS ATOMS
...