Hello everyone, I am attempting to computing the products from a Ra226 target bombarded with 11 MeV photons, I set up a Ra226 material card, like this, but the program didn’t work. [微信图片_20240214232106] Any explanation for this would be greatly appreciated. Thanks Lijuan

Dear @lijuanhe , The error is due to the fact that there no neutron cross sections available for Radium in the group-wise neutron approach. You need to update to the newest Fluka version to use the point-wise approach and solve the problem. You also need to update your Flair version which is quite…

Dear @lijuanhe , What does it mean “the program didn’t work”? Did you encounter any error? Also, to get help, you should always share your input file, like the .flair file.

Dear @amario , I’m sorry for not expressing clearly. The input file like this. W-4.flair (2.9 KB) It reports an error: " *** Nonsense LOW-MAT card assigning to the Fluka material 26 (RADIUM ) a low *** *** energy neutron set with undefined Z 0 and name *** *** execution terminate…

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Computing the products from a Ra226 target bombarded with photons

Geometry and Materials