openmc.stats.Watt¶

class openmc.stats.Watt(a=0.988, b=2.249)[source]¶

Watt fission energy spectrum.

The Watt fission energy spectrum is characterized by two parameters \(a\) and \(b\) and has density function \(p(E) dE = c e^{-E/a} \sinh \sqrt{b \, E} dE\).

Parameters:	a (float) – First parameter of distribution b (float) – Second parameter of distribution
Variables:	a (float) – First parameter of distribution b (float) – Second parameter of distribution