[Gate-users] Gate-users Digest, Vol 180, Issue 11

[Mounir BENMESSAOUD]

 Dose results interpretation (Dmitry Hits),
Dear Dmitry,
the error is large because the number of events is small(10000 events.),
you should increase the number of events to decrease the error margin.

good luck,


Le mar. 11 mai 2021 à 15:31, <
gate-users-request at lists.opengatecollaboration.org> a écrit :

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>    1. Dose results interpretation (Dmitry Hits)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 11 May 2021 17:31:11 +0200
> From: Dmitry Hits <dmitry.hits at phys.ethz.ch>
> To: Gate-Users <gate-users at lists.opengatecollaboration.org>
> Subject: [Gate-users] Dose results interpretation
> Message-ID: <6F7EDD9B-F7C1-4E6D-8FA5-1BDF5889B2F1 at phys.ethz.ch>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Gaters,
>
> I am trying to understand results output by the dose actor, which I
> enabled with the following lines:
>
> /gate/actor/addActor DoseActor             dose5
>         /gate/actor/dose5/save
>  results/dose_2021May11_171652_5.root
>         /gate/actor/dose5/attachTo               box5
>         /gate/actor/dose5/stepHitType            random
>         /gate/actor/dose5/setResolution          1 10 1
>         /gate/actor/dose5/enableDose             true
>         /gate/actor/dose5/enableUncertaintyDose  true
>         /gate/actor/dose5/enableNumberOfHits     true
>
> The source is a pencil beam of protons of 100 MeV. I simulated 10000
> events.
>
> Here is the histogram I got:
>
>
> My question is why is the error so large? How is it calculated?
>
> Cheers,
>
> Dmitry
>
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