ANS54: a computer subroutine for predicting fission gas release

The ANS5.4 committee developed fission gas release models for stable and radioactive species for both low and high temperatures. This report reproduces these models and presents a FORTRAN coding of the models. The coding comprises subroutine ANS54 which is in a format suitable for direct insertion into a code like FRAPCON. Also shown are comparisons of model predictions with light water reactor low burnup data and liquid metal fast breeder reactor high burnup data that were used in the model development.