| Summary: | Energy loss of triton -> dE > Etot | ||
|---|---|---|---|
| Product: | Geant4 | Reporter: | c.datema |
| Component: | processes/electromagnetic/lowenergy | Assignee: | Michel.Maire |
| Status: | RESOLVED INVALID | ||
| Severity: | major | ||
| Priority: | P2 | ||
| Version: | 4.0 | ||
| Hardware: | PC | ||
| OS: | Linux | ||
Sorry about the format of the output. Cut&paste obviously didn't do the job properly. Email me for a better version. The process involved ("hIoni") belongs to the standard electromagnetic package;
therefore, this problem report is reassigned to its coordinator.
Best regards,
Maria Grazia Pia
|
Whilst simulating the response of an Helium3 neutron detector, i get the following output after the (n,p) reaction of the Helium3. The dE of the triton is more than the total energy of the particle. The dE fluctuates around 230 keV, which should be exactly 191 keV. ******************************************************************************** ************************* * 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 62 157 -31.9 92.5 2.15e-08 0 0 3.73e+03 Sand_box initStep 63 147 -7.11e-15 93.3 2.15e-08 0 33.5 3.76e+03 World Transportation 64 54.2 288 101 2.15e-08 0 302 4.06e+03 HeDetectorHouse Transportation 65 53.9 288 101 2.15e-08 0 1.05 4.06e+03 HeDetector Transportation 66 53.2 291 101 2.15e-08 0 2.17 4.07e+03 HeDetector inelastic neutron Track (trackID 1, parentID 0) is processed with stopping code 2 ### pop requested out of 2 stacked tracks. ******************************************************************************** ************************* * G4Track Information: Particle = triton, Track ID = 63, Parent ID = 1 ******************************************************************************** ************************* Step# X(mm) Y(mm) Z(mm) KinE(MeV) dE(MeV) StepLeng TrackLeng NextVolume ProcName 0 53.2 291 101 0.191 0 0 0 HeDetector initStep 1 52.9 290 101 0 0.229 0.492 0.492 HeDetector hIoni 2 52.9 290 101 0 0 0 0.492 HeDetector hIoni 3 52.9 290 101 0 0 0 0.492 HeDetector hIoni Track (trackID 63, parentID 1) is processed with stopping code 2 ### pop requested out of 1 stacked tracks. ******************************************************************************** ************************* * G4Track Information: Particle = proton, Track ID = 62, Parent ID = 1 ******************************************************************************** ************************* Step# X(mm) Y(mm) Z(mm) KinE(MeV) dE(MeV) StepLeng TrackLeng NextVolume ProcName 0 53.2 291 101 0.573 0 0 0 HeDetector initStep 1 53.2 291 101 0.57 0.00157 0.0271 0.0271 HeDetector hIoni 2 53.4 291 101 0.556 0.013 0.256 0.283 HeDetector hIoni 3 54.4 292 101 0.465 0.0907 1.56 1.84 HeDetector hIoni 4 55.2 293 101 0.377 0.0877 1.27 3.11 HeDetector hIoni 5 55.8 294 101 0.3 0.0776 1.01 4.12 HeDetector hIoni 6 56.3 294 101 0.227 0.0732 0.802 4.92 HeDetector hIoni 7 56.7 295 101 0.158 0.069 0.627 5.55 HeDetector hIoni 8 57 295 101 0.0941 0.0636 0.476 6.02 HeDetector hIoni 9 57.2 295 102 0.0217 0.0723 0.351 6.37 HeDetector hIoni 10 57.3 296 102 0 0.0217 0.159 6.53 HeDetector hIoni Track (trackID 62, parentID 1) is processed with stopping code 2 ### pop requested out of 2 stacked tracks. ******************************************************************************** ************************* Kind regards, Cor Datema