| Message: Li6+ n(thermal) -> alpha + triton: incorrect final states (extra gammas ?) | Not Logged In (login) |
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Simulating thermal neutrons in Li-6 loaded material I have expected well known reaction:
n + Li6 -> H-3(2.75 MeV) + He-4 (2.05 MeV) But I have found that G4 (ver. 4.9.2.p01 + G4NDL3.13, (QGSP_BIC_HP, LHEP_PRECO_HP, LBE phys lists) ) simulates strange list of secondary particles:
********************************************************************************************************* * G4Track Information: Particle = neutron, Track ID = 1, Parent ID = 0 *********************************************************************************************************
Step# X(mm) Y(mm) Z(mm) KinE(MeV) dE(MeV) StepLeng TrackLeng NextVolume ProcName 55 417 6.69 465 1.54e-06 0 0 141 scinstripcore.phys initStep 56 415 11.6 463 1.54e-06 0 5.58 146 scinstriprefl.phys Transportation 57 415 11.8 463 1.54e-06 0 0.273 147 scinstriprefl.phys Transportation 58 415 12.1 463 1.54e-06 0 0.273 147 scinstripcore2.phys Transportation 59 415 12.9 463 0 0 1 148 scinstripcore2.phys NeutronInelastic MyUserSteppingAction.UserSteppingAction: Current particle: neutron: N-interaction in path='/vessel.phys_0/chamber.phys_0/scinstrip.phys[93,39]_39093/scins\ triprefl.phys_0/scinstripcore.phys_0/scinstripcore2.phys_0' (defined material trigger=4) at position (X=414.532, Y=12.9458, Z=462.992), Strip[93,39], capt\ ure time=1900.3 (global), 1900.3 (local) ns MyUserSteppingAction.UserSteppingAction: process: NeutronInelastic: list of secondary particles: triton: 2.81048e+06 keV, time=1900.3 (global), 1900.3(local) ns alpha: 3.72855e+06 keV, time=1900.3 (global), 1900.3(local) ns gamma: 3.20305 keV, time=1900.3 (global), 1900.3(local) ns gamma: 1025.31 keV, time=1900.3 (global), 1900.3(local) ns gamma: 1025.31 keV, time=1900.3 (global), 1900.3(local) ns How can I correct this? Problem is also confirmed by other user, see thread http://hypernews.slac.stanford.edu/HyperNews/geant4/get/phys-list/530.html It was proposed there to shift this discussion to this category of forum. Cheers, Yuri.
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