Dear User Forum,
About the missing energy, I have a similar question as in e.g. "Missing energy" in output file.
However, I want to understand if my case is reasonable or not.
I am calculating the energy deposited by a proton beam of of 2.5 GeV in a beam dump of Cu, 25 cm radius and 120 cm long. The missing energy is 0.424 GeV per primary, i.e. 17%.
Considering the nuclear binding energy is about 8 MeV per nucleon in Cu, this seems a bit high, or? The number of stars is about 12 per primary meaning 35 MeV “lost” as binding energy per star. How can this be understood? Is it due to the inelastic interactions by the secondaries? E.g. can I read out how many secondary nuclear inelastic interactions are produced?
See the energy balance and events per region below.
Best regards,
Björn
From Run Summary
2.5000E+00 (100.%) GeV available per beam particle divided into
Prompt radiation Radioactive decays
1.1835E+00 (47.3%) 0.0000E+00 ( 0.0%) GeV hadron and muon dE/dx
5.6439E-01 (22.6%) 0.0000E+00 ( 0.0%) GeV electro-magnetic showers
2.0871E-02 ( 0.8%) 0.0000E+00 ( 0.0%) GeV nuclear recoils and heavy fragments
0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV particles below threshold
0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV residual excitation energy
1.8153E-02 ( 0.7%) 0.0000E+00 ( 0.0%) GeV low energy neutrons
2.5276E-01 (10.1%) 0.0000E+00 ( 0.0%) GeV particles escaping the system
3.6295E-02 ( 1.5%) 0.0000E+00 ( 0.0%) GeV particles discarded
0.0000E+00 ( 0.0%) 0.0000E+00 ( 0.0%) GeV particles out of time limit
4.2407E-01 (17.0%) GeV missing