: Radial power shapes, internal pressure, material properties (cladding, fuel, gap), and geometric specifications.

: If you have access to the US NRC TRACE Code , sample input decks containing HTSTR components are included in the installation directories.

: Researchers often share reference models in public repositories. For instance, models of the NuScale power module or VVER-1000 plants have reference implementations shared in academic databases or GitHub.

: Most users create these files using a text editor (like Notepad or TextEdit ) or specialized graphical interfaces like SNAP (Symbolic Nuclear Analysis Package). Example HTSTR Input Structure (Conceptual)