Dear experts, I am trying to reproduce the experimental total cross section for production of Zn 63 and Zn 65 due to p,n reaction on nat Cu target. Simulation result: for proton energy 4.32 MeV, sigma (Zn63): 45.82 mb and sigma (Zn 65): 49.595 mb for proton energy 4.63 MeV, sigma (Zn63): 75.62 m…

The reaction channel is just (the indicated) one. The point is that the experimental cross sections are (naturally) given on 63Cu and 65Cu, respectively, and not natural copper (despite the fact that natural copper was actually used). This means that you should more conveniently run two separate si…

Thank you @ceruttif for the detailed explanation. Regards, Riya

Dear @ceruttif , I gave a run with pure Cu 63 and I got 81.55 mb (63 Zn) for 4.32 MeV; and 95.63 mb for 4.63 MeV. The statistical error is below 1%. Then is there any reason for getting slightly different value than yours ? [Image_1] Similarly I am getting different values for pure Cu 65 [Ima…

The problem is a miscommunication glitch between Flair and FLUKA, triggered by the use of AIR as alternate material for ionisation processes and affecting your material selection in the USRYIELD card, which turns out to be AIR instead of single isotope copper. You can realize this by looking at the …

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Discrepancy with experimental value for production cross section of Zn 63 and Zn 65 due to nat Cu (p,n) reaction

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