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Feedback Re: tracking 411.8keV gamma during Au198 production 

Forum: Event and Track Management
Re: Question tracking 411.8keV gamma during Au198 production (Sean Turnbull)
Re: Idea Re: tracking 411.8keV gamma during Au198 production (Joel Long)
Date: 06 Jul, 2011
From: Sean Turnbull <Sean Turnbull>

On Wed, 06 Jul 2011 15:13:54 GMT, Joel Long wrote:
> Hi Sean,
> 
> I would match gammas to Au198s via parent ID and by looking at the
> creator process for the gammas
> (aTrack->GetCreatorProcess()->GetProcessName()). If the parent ID is
> that of the neutron and the creator process is...I believe it should
> show up as nCapture, than it is a match, right?
> 
> Have you dug into the GNDL data to make sure that the gamma levels it
> has match with what you think it should have?
> 
> Hope this helps, Joel
> 

Hi Joel, It seems my process for looking for gammas needed a little refinement. What I have now seems ok. This is a track listing. You can see the Au198 produced. This decays to Hg198[411.8], here is the 411.8 keV. This then decays again to stable Hg198[0.0] expelling another gamma of 0.412 keV. I am guessing this is truncated 411.8 keV energy.

I have to say that I haven't done the GNDL data testing as I am still learning about data validation. Thankfully the B- decays eems ok. Can you give me a pointer as to a quick test for this? I am also needing to verify the number of Au198 isotopes produced matches experiment.

Thanks Joel.

  262    0.642    -51.4    -13.1    0.0113        0     52.4   7.2e+03   lead_phys hadElastic
  263    0.018      -50    -12.3    0.0113        0     1.71   7.2e+03 leadcyl2_phys Transportation
  264     -9.2    -29.2     -1.5    0.0113        0     25.2  7.23e+03   gold_phys Transportation
  265    -10.4    -26.6   -0.118         0        0     3.21  7.23e+03   gold_phys nCapture

*********************************************************************************************************
* G4Track Information:   Particle = Au198[0.0],   Track ID = 344,   Parent ID = 29
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118  1.83e-05        0        0         0   gold_phys initStep
    1    -10.4    -26.6   -0.118         0 1.83e-05 2.25e-06  2.25e-06   gold_phys ionIoni
    2    -10.4    -26.6   -0.118         0        0        0  2.25e-06   gold_phys RadioactiveDecay

*********************************************************************************************************
* G4Track Information:   Particle = e-,   Track ID = 347,   Parent ID = 344
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118     0.606        0        0         0   gold_phys initStep
    1    -10.4    -26.6   -0.117         0    0.606     0.23      0.23   gold_phys eIoni

*********************************************************************************************************
* G4Track Information:   Particle = anti_nu_e,   Track ID = 346,   Parent ID = 344
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118     0.355        0        0         0   gold_phys initStep
    1    -9.28    -27.7     -1.5     0.355        0     2.11      2.11 leadcyl2_phys Transportation
    2     10.7    -48.8    -26.7     0.355        0     38.4      40.5   lead_phys Transportation
    3      307     -362     -400     0.355        0      570       611 physContainer Transportation
    4 7.92e+03 -8.41e+03   -1e+04     0.355        0 1.47e+04  1.53e+04  OutOfWorld Transportation

*********************************************************************************************************
* G4Track Information:   Particle = Hg198[411.8],   Track ID = 345,   Parent ID = 344
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118  2.89e-06        0        0         0   gold_phys initStep
    1    -10.4    -26.6   -0.118         0 2.89e-06 8.88e-07  8.88e-07   gold_phys ionIoni
    2    -10.4    -26.6   -0.118         0        0        0  8.88e-07   gold_phys RadioactiveDecay

*********************************************************************************************************
* G4Track Information:   Particle = gamma,   Track ID = 349,   Parent ID = 345
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118     0.412        0        0         0   gold_phys initStep
    1    -10.1    -26.4     -1.5     0.412        0     1.43      1.43 leadcyl2_phys Transportation
    2       -8    -25.1    -10.2     0.176        0     9.04      10.5 leadcyl2_phys compt
    3    -8.56      -25    -9.87         0    0.088    0.666      11.1 leadcyl2_phys phot

*********************************************************************************************************
* G4Track Information:   Particle = e-,   Track ID = 351,   Parent ID = 349
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -8.56      -25    -9.87    0.0876        0        0         0 leadcyl2_phys initStep
    1    -8.56      -25    -9.86         0   0.0876   0.0223    0.0223 leadcyl2_phys eIoni

*********************************************************************************************************
* G4Track Information:   Particle = e-,   Track ID = 350,   Parent ID = 349
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0       -8    -25.1    -10.2     0.236        0        0         0 leadcyl2_phys initStep
    1    -7.99    -25.1    -10.2         0    0.236    0.106     0.106 leadcyl2_phys eIoni

*********************************************************************************************************
* G4Track Information:   Particle = Hg198[0.0],   Track ID = 348,   Parent ID = 345
*********************************************************************************************************

Step#    X(mm)    Y(mm)    Z(mm) KinE(MeV)  dE(MeV) StepLeng TrackLeng  NextVolume ProcName
    0    -10.4    -26.6   -0.118         0        0        0         0   gold_phys initStep
    1    -10.4    -26.6   -0.118         0        0        0         0   gold_phys RadioactiveDecay

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