hello , I need to calculate the coefficient of temperature with the code OpenMC,
Then how to calculate the effective multiplication factor by temperature 1500 k
The cross-section table identifier (e.g., .71c and .71t) is the method by which ACE data differentiates temperature. For 1500K and the NNDC-sourced data, use the .74c and library series. How to change the x/s identifier is discussed here:
http://mit-crpg.github.io/openmc/usersguide/input.html#materials-specification-materials-xml