pyrk.data.precursors module

class pyrk.data.precursors.PrecursorData(nuc, e, n)

Bases: object

Lambda()

_get_Lambda(nuc, e)

Mean generation time of the neutrons in this reactor type. [s]

_get_betas(nuc, e)

Retrieves the values for beta_i Data for u235 was obtained from http://arxiv.org/pdf/1001.4100.pdf

_get_lambdas(nuc, e)

Retrieves the values for lambda_i Data for u235 was obtained from http://arxiv.org/pdf/1001.4100.pdf

beta()

The Big Beta is the fraction of all fission neutrons that are delayed.

betas()

The betas are populations of neutron precursors.

lambdas()

The lambdas are the decay constants for the neutron precursor groups.

v_d(nuc, e)

TODO: figure out why you felt you needed this