Then she reached Section 3.5: Surface Crossing and Track Length Estimation .
Later, a junior physicist, Sam, knocked on her door. “My fission source won’t converge,” he mumbled, holding his own coffee-stained printout. mcnp5 theory manual
Alena grinned. She returned to her desk, fixed the IMP:N card, and reran the job. This time, the neutron flux plotted as smooth as a river stone. Then she reached Section 3