9. Volume File Format

The current version of the volume file format is 1.0.

/

Attributes

• filetype (char[]) – String indicating the type of file.

• version (int[2]) – Major and minor version of the summary file format.

• openmc_version (int[3]) – Major, minor, and release version number for OpenMC.

• git_sha1 (char[40]) – Git commit SHA-1 hash.

• date_and_time (char[]) – Date and time the summary was written.

• domain_type (char[]) – The type of domain for which volumes are calculated, either ‘cell’, ‘material’, or ‘universe’.

• samples (int) – Number of samples

• lower_left (double[3]) – Lower-left coordinates of bounding box

• upper_right (double[3]) – Upper-right coordinates of bounding box

• threshold (double) – Threshold used for volume uncertainty

• trigger_type (char[]) – Trigger type used for volume uncertainty

/domain_<id>/

Datasets

• volume (double[2]) – Calculated volume and its uncertainty in cubic centimeters

• nuclides (char[][]) – Names of nuclides identified in the domain

• atoms (double[][2]) – Total number of atoms of each nuclide and its uncertainty