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Forum: Physics List
Re: None confused on the results about neutron yield and spectra produced from reaction (d,n) (Phan Viet Cuong)
Re: Question Re: confused on the results about neutron yield and spectra produced from reaction (d,n) (Phan Viet Cuong)
Re: Idea Re: confused on the results about neutron yield and spectra produced from reaction (d,n) (Vladimir Ivanchenko)
Date: 13 Aug, 2008
From: Phan Viet Cuong <Phan Viet Cuong>

Dear Vladimir Ivantchenko,

Thank for your quick respond very much!

>>You may want to try out $G4INSTALL/examples/extended/hadronic/Hadr01
>>where different PhysLists are available. You do not need write your code but >>try to see if the reaction of interest exist.

I have tried out example Hadr01. Here is macro file i used:

/gun/energy 200 MeV /gun/particle deuteron

/control/verbose 2 /run/verbose 2

/vis/scene/create

/vis/open HepRepFile

/vis/viewer/set/viewpointThetaPhi 90 0 deg /vis/viewer/zoom 1.0 /vis/viewer/flush

/tracking/storeTrajectory 1 /vis/scene/endOfEventAction accumulate

/testhadr/TargetMat G4_Be /testhadr/TargetRadius 1 cm /testhadr/TargetLength 10 cm /testhadr/NumberDivZ 100 /testhadr/DrawTracks all /testhadr/CutsAll 1 mm /testhadr/ListPhysics QGSP_BIC

# /testhadr/HistoName test /testhadr/HistoType aida #/testhadr/HistoOption "uncompress"

/run/initialize /run/beamOn 10000

However, I could not see any neutron. Here are results:

Run terminated.
Run Summary
  Number of events processed : 10000
  User=63.547s Real=99.515s Sys=24.953s
RunAction: End of run actions are started
/vis/viewer/update
HistoManager: End of run actions are started
========================================================
Beam particle                        deuteron
Beam Energy(MeV)                     200
Number of events                     10000
Average energy deposit (MeV)         177.2   RMS(MeV) 4.95
Average number of steps              100
Average number of gamma              0
Average number of e-                 0
Average number of e+                 0
Average number of neutrons           0
Average number of protons            0
Average number of antiprotons        0
Average number of pi+ & pi-          0
Average number of pi0                0
Average number of kaons              0
Average number of muons              0
Average number of deuterons+tritons  0
Average number of He3+alpha          0
Average number of ions               0
Average number of forward neutrons   0
Average number of reflected neutrons 0
Average number of leaked neutrons    0
Average number of proton leak        0
Average number of pion leak          0
========================================================

Closing the tree...
Histograms and Ntuples are saved
WARNING: G4VisManager::EndOfRun: Event keeping was suspended.
  The number of events in the run exceeded the maximum to be kept, 100.
  The number of events to be kept can be changed with
  "/vis/scene/endOfEventAction accumulate <N>", where N is the
  maximum number you wish to allow.  N < 0 means "unlimited".
100 events have been kept for refreshing and/or reviewing.

On the other hand, Although there is the report:

### Run 1 start
### Histo books 22 histograms
Histo: tree store : test.aida

but I could not see the histogram file test.aida.

Could you please let me know what i should do to solve this problem.

Thank you very much in advance!

Cuong

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