[Gate-users] Energy spectrum

[David Boersma]

Dear Tony,

For us to reproduce the error:
- Which version of GATE?
- Which version of ROOT?

DavidB

Den 26/09/2017 kl. 14:03, skrev tony youness:
> Dear Maxime,
> 
> Thank you for your response.
> 
> I just tried to increase the Emin to 1 MeV and reduced the number of
> bins to 100 (just for testing), and I still get the same error...
> 
> Tony
> 
> 
> On 26/09/17 1:51 pm, Maxime Chauvin wrote:
>> Dear Tony,
>>
>> what I can tell is that the error seems to come from Root (TH1D).
>> I don’t know what cause the error but maybe the number of bins is too high or the Emin is too small…
>>
>>     Maxime
>>
>>> On 26 Sep 2017, at 13:17, tony youness <tony_youness at live.com> wrote:
>>>
>>> Dear fellow Gate users,
>>>
>>> I am trying to generate the electrons energy spectrum at 10 cm in water
>>> phantom. I used the Energy spectrum actor as follow:
>>>
>>> /gate/actor/addActor          EnergySpectrumActor    spectrum
>>> /gate/actor/spectrum/attachTo                        layer3
>>> /gate/actor/spectrum/addFilter particleFilter
>>> /gate/actor/spectrum/particleFilter/addParticle      e-
>>> /gate/actor/spectrum/save output/WaterSpec.root
>>> /gate/actor/spectrum/energySpectrum/setEmin          0 eV
>>> /gate/actor/spectrum/energySpectrum/setEmax          6 MeV
>>> /gate/actor/spectrum/energySpectrum/setNumberOfBins  300
>>>
>>> layer3 is a small water volume created in the water phantom at 10 cm.
>>> When i launch the simulation i get the following error:
>>>
>>> Error in <TH1D::Rebin>: Illegal value of ngroup=10815379
>>> Error in <TH1D::Rebin>: Illegal value of ngroup=10815379
>>> Error in <TH2D::Rebin>: Illegal value of nxgroup=10815379
>>> Error in <TH1D::Rebin>: Illegal value of ngroup=10815379
>>> Error in <TH1D::Rebin>: Illegal value of ngroup=10815379
>>> WARNING: Scene "none" not found.
>>>     /vis/scene/list to see scenes.
>>>
>>>
>>>
>>> ### === G4UAtomicDeexcitation::InitialiseForNewRun()
>>> ### ===  PIXE model for hadrons: Empirical
>>> ### ===  PIXE model for e+-:     Livermore
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> Error in <TH2D::Fill>: Invalid signature - do nothing
>>> ...
>>>
>>> Any ideas where this problem could come from?
>>>
>>> Regards,
>>>
>>> Tony Younes
>>>
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> 
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