Cosmic ray neutron

[dongxy19 (Dong Xuyang)]

Dear experts:
I tried to reproduce the results in this answer, but I couldn’t get the correct energy spectrum as expected, and the result I got is shown in the figure,

how to count dN/d(logE) in FLUKA

Cosmic neutron ray energy spectrum data calculation problem?

Dear experts, I simplified the computational model, using the air layer as the neutron source,the soil thickness is 6 m.The calculations were made using the cosmic neutron ray energy spectrum, but the resulting trend seems to be problematic.I can only calculate single-energy neutrons. My calculations turn out to be such a trend： [12] The flux result trend of the relevant paper is: [屏幕截图 2022-07-20 235144] How do I implement the following energy spectrum calculations?At the moment it seem…

Xuyang dong
Thanks in advance！
Cosmic.inp (2.9 KB)
cydnp.txt (3.6 KB)
source_spectrum.f (10.5 KB)

[horvathd (Dávid Horváth)]

Dear Xuyang,

you need to have a log-log plot, with the plotted Value set to <X>*Y.

Cheers,
David