OpenMC/docs/source/io_formats/source.rst

.. _io_source:

==================
Source File Format
==================

Normally, source data is stored in a state point file. However, it is possible
to request that the source be written separately, in which case the format used
is that documented here.

**/**

:Attributes: - **filetype** (*char[]*) -- String indicating the type of file.

:Datasets:
           - **source_bank** (Compound type) -- Source bank information for each
             particle. The compound type has fields ``wgt``, ``xyz``, ``uvw``,
             ``E``, and ``delayed_group``, which represent the weight, position,
             direction, energy, energy group, and delayed_group of the source
             particle, respectively.