SpecialMultiplier#

class montepy.SpecialMultiplier(*values)#

Bases: Enum

The c k special-multiplier flags (FM spec footnote 2).

A closed, fixed 3-value set with no arithmetic use case, unlike reaction numbers, so unlike Reaction this is a real Enum.

Added in version 1.6.0b2.

Attributes:

FIRST_INTERACTION_XS

The tally is multiplied by the microscopic cross section of the first interaction.

INVERSE_VELOCITY

The tally is multiplied by 1/velocity; the tally is the neutron population or removal lifetime.

INVERSE_WEIGHT

The tally is multiplied by 1/weight; the tally is the number of tracks (or collisions for F5).

FIRST_INTERACTION_XS = -3#

The tally is multiplied by the microscopic cross section of the first interaction.

INVERSE_VELOCITY = -2#

The tally is multiplied by 1/velocity; the tally is the neutron population or removal lifetime.

INVERSE_WEIGHT = -1#

The tally is multiplied by 1/weight; the tally is the number of tracks (or collisions for F5).