pyextal.jaxMultipole.constants
==============================

.. py:module:: pyextal.jaxMultipole.constants

.. autoapi-nested-parse::

   Physical constants, spelled the way the Bloch engine spells them.

   The electron-scattering constants are copied from the Fortran rather than
   recomputed from CODATA, so that a model evaluated here and the engine's own
   ``defaultsf(3, g)`` agree to the last digit they share.



Attributes
----------

.. autoapisummary::

   pyextal.jaxMultipole.constants.MOTT
   pyextal.jaxMultipole.constants.BOHR
   pyextal.jaxMultipole.constants.GAMMA_K
   pyextal.jaxMultipole.constants.E2X


Functions
---------

.. autoapisummary::

   pyextal.jaxMultipole.constants.gamma


Module Contents
---------------

.. py:data:: MOTT
   :value: 0.023933754


.. py:data:: BOHR
   :value: 0.529177210544


.. py:data:: GAMMA_K
   :value: 0.0019569341


.. py:data:: E2X
   :value: 131.2625


.. py:function:: gamma(kv)

   Relativistic mass ratio at ``kv`` kilovolts, the engine's ``ratio(3)`` factor.