How Do You Upgrade the MCNP5 Library?

[bozinion]

hello guys. I would like to ask you if anyone knows how to upgrade the library at mcnp5. I downloaded the last version for mcnp5 but I don't know how to change it. please help. Thank you.

 

[Alex A]

Hi. The usual method to add a cross section library is to put the ace files in MCNP_DATA (or wherever you have your data) and make changes to or replace the xsdir file that indexes them. You can also, at a push, use more than one xsdir with different names.

This said, it's normal to use the same standard cross section library as much as possible with a given MCNP version for trust reasons. Change the library and the results won't completely match, and it's possible a new library could crash the program or produce wrong answers.

In my opinion, trust is the reason to use MCNP.

 

[raining Pete]

Hey there! I've upgraded the library for MCNP5 before, so I might be able to help you out. First, make sure you have the new library downloaded and saved in the correct location on your computer. Then, open up MCNP5 and go to the "Preferences" or "Options" menu. From there, look for an option to "Change Library" or "Upgrade Library." Click on that and navigate to the location where you saved the new library. Select it and click "OK" or "Apply." That should update your library to the new version. Let me know if that works for you!