Versions
FLUKA: 4-5.1
Flair: 3.4-5.2
Description
Dear FLUKA experts,
due to reasons, I have compared the net charge deposited in a region obtained via usrbin → NET-CHRG and via charge-weighted usryield as shown below:
For reference, the primaries are 4.03 GeV protons, so I think the usryield limits are safe to include eveything. Also SPUHR is completely encapsulated within SCHOBPI.
The results are:
NET-CHRG: 9.1980E-04 ± 3.4245%
SPU_RI (in): -5.2575001E-07 +/- 9.0420411E-15 %
SPU_RO (out): -9.8692499E-07 +/- 3.7282799E-14 %
The usryields are integrated over charge and still must be multiplied by the 2000 GeV energy range. If I do this and subtract (out) from (in) I get a net charge passing the surface of
9.2235e-04 ± O(1e-8)%
The results are within the uncertainty of NET-CHRG, but since they are from the same run, I wonder if the discrepancy in value is physical, numerical or due to a misunderstanding on my side?
If it is numerical, can I rely on the usryield results to be significantly more accurate?
Input files
protons_vloss_76_sum.lis (1.5 KB)
protons_vloss_77_sum.lis (1.5 KB)
protons_vloss_78.bnn.lis (517 Bytes)
halo_collimation_sector_one.flair (61.4 KB)
halo_collimation_sector_one.inp (40.7 KB)
source_halo_coll_sector_one.f (11.5 KB)
Best regards
Roman