[Gate-users] SetTimeStop vs Dose(mGy)

[David Sarrut]

Hello,

there are two ways to start a simulation:

First:
/gate/application/setTimeStart  0. s
/gate/application/setTimeSlice  1  s
/gate/application/setTimeStop   10. s
/gate/application/startDAQ

Will create 10 runs of 1 sec. The number of generated primary particules
will depend on the source activity (for example 1MBq, will launch 1M
particles every run).

Second :
/gate/application/setTotalNumberOfPrimaries 10000
/gate/application/start

In that case, 10000 particles will be generated, time is not explicit.
Under the hood, Gate create a "fake" time structure of a single slice,
starting at 0, ending at 1 sec, every particle being timestamp at 1/10000
sec.

HTH,
David



On Mon, Aug 21, 2017 at 11:41 AM, Emmanuel Marfo <
emmanuel.marfo at postgrad.otago.ac.nz> wrote:

> Hi GATE users,
>
> Please, can someone help me to understand how the acquisition parameters
> such as Timeslice, TimeStart and TimeStop in GATE actually work? I learnt
> is equivalent to real time experiment. Currently, at constant Timeslice say
> 0.26 s, I vary the TimeStop say 30 60, 90 s etc. I expected my dose(mGy)
> values to increase but the dose(mGy) actually remain the same. Is it a bug
> in my simulation making me to get the same results or I am wrongly
> implementing the acquisition parameters. Thanks.
>
>
> Best regards,
>
> Emmanuel Marfo
>
> Student
>
> University of Otago
>
> _______________________________________________
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> Gate-users at lists.opengatecollaboration.org
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>



-- 
David Sarrut, Phd
Directeur de recherche CNRS
CREATIS, UMR CNRS 5220, Inserm U1206
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/~dsarrut
_________________________________
 "2 + 2 = 5,  for extremely large values of 2"
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