mgxs.h5 0.126 0.126 10 10 -0.63 -0.63 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 1.26 1.26 2 2 -1.26 -1.26 2 2 2 5 eigenvalue 100 40 20 multi-group 100.0 20.0 -1.26 -1.26 -1 1.26 1.26 1 true linear 2 2 -1.26 -1.26 1.26 1.26 1 1e-05 0.0635 10.0 100.0 1000.0 500000.0 1000000.0 20000000.0 1 2 flux fission nu-fission analog