r/R

Modified Bessel (NDM)

MCNP

0.0

1.000000

1.000000

0.1

0.908456

0.945652

0.2

0.896895

0.816547

0.3

0.812834

0.752649

0.4

0.746532

0.706494

0.5

0.684865

0.65181

0.6

0.513484

0.551561

0.7

0.435479

0.406465

0.8

0.201525

0.254468

0.9

0.102499

0.113644

1.0

0.000000

0.000249