[Gate-users] washout actor

[Rohling Heide]

Thank you, that helps!


Could you also explain how to obtain the readout from the washoutactor? From the following, no washoutOutput file is produced and according to the ProductionAnd StoppingActor the source is not modified in its distribution (one point). I'd like to simulate the washout of a c11-source in a waterbox named "pat".

​

This is my actor:

/gate/actor/addActor                              WashOutActor wa
/gate/actor/wa/attachTo                      pat
/gate/actor/wa/readTable          washouttable.txt
/gate/actor/wa/save                               washoutOutput.txt
/gate/actor/wa/saveEveryNSeconds 1



This is the source:

/gate/source/addSource c11src gps
/gate/source/c11src/attachTo pat
/gate/source/c11src/setActivity 0.1 Bq
/gate/source/c11src/gps/particle ion
/gate/source/c11src/gps/ion 6 11 0 0
/gate/source/c11src/gps/energytype        Mono
/gate/source/c11src/gps/monoenergy        0.0 MeV
/gate/source/c11src/setForcedUnstableFlag true
/gate/source/c11src/gps/pos/centre      0.0 0.0 0.0  cm
/gate/source/c11src/useDefaultHalfLife




And this the washouttable:

1
c11src    Water         0.2   2 s  0.5  156 s   0.3  9000 s




Thank you and best regards,​

Heide







________________________________
Von: Seb <sebastien.jan at cea.fr>
Gesendet: Donnerstag, 09. Juni 2016 16:34
An: Rohling Heide
Cc: gate-users at lists.opengatecollaboration.org
Betreff: Re: AW: [Gate-users] washout actor

in the washout.dat file, you must specify the time unit - here an example with 2 sources and tissues
2
C11Tumour   Tumour     0.00  2 s     0.543  156 s    0.457  10000 s
C11Brain    Brain      0.35  2 s     0.30  140 s     0.35   10000 s


Hi,

thanks for your answer.


It is a warning. No error occurs, but it seems that the washout is not applied. I tested the position of photons which is not varied.


It seems that the order of the entries in the list is not correct. 155.7 s is a half-live, not a ratio.


Furthermore, is the half-live required in s or ns and in addition to that  "Brain" appears also for the second actor.


Cheers,

Heide




________________________________
Von: gate-users-bounces at lists.opengatecollaboration.org<mailto:gate-users-bounces at lists.opengatecollaboration.org> <gate-users-bounces at lists.opengatecollaboration.org><mailto:gate-users-bounces at lists.opengatecollaboration.org> im Auftrag von Seb <sebastien.jan at cea.fr><mailto:sebastien.jan at cea.fr>
Gesendet: Donnerstag, 09. Juni 2016 15:45
An: gate-users at lists.opengatecollaboration.org<mailto:gate-users at lists.opengatecollaboration.org>
Betreff: Re: [Gate-users] washout actor

Hi
Is it just a warning message ?
I ask this question because in the source code, the test is the following:

     G4double sumWashOut = parWashOut[0] + parWashOut[2] + parWashOut[4];
      if ( (sumWashOut-1.0) > diff ) {
        GateMessage("Actor", 0, "WARNING :: Total WashOut Ratio non equal to 1.\n");
      }

with -> diff =1e-8
I can suspect a randing errors in the test....

tell me
Cheers
Seb




Dear Gate-community,


could you please help me with the washout actor that I am trying to apply to a back2back source. Using this as "washouttable" (only medium washout component):



2
twogamma   Brain     0.0   2.0   1.0  155.7    0.0  9000
twogamma   Bone      0.0   2.0   1.0  155.7    0.0  9000


according to what can be found in the Gate user-manual:


2
[SOURCE 1 NAME]   [MATERIAL 1 NAME]     [Mf VALUE]  [Tf VALUE IN SEC]   [Mm VALUE]  [Tm VALUE IN SEC]   [Ms VALUE]  [Ts VALUE IN SEC]
[SOURCE 2 NAME]   [MATERIAL 2 NAME]     [Mf VALUE]  [Tf VALUE IN SEC]   [Mm VALUE]  [Tm VALUE IN SEC]   [Ms VALUE]  [Ts VALUE IN SEC]


Gate tells me this:


[Actor-0] GateWashOutActor -- ReadWashOutTable : fileName: washouttable.txt
[Actor-0] WARNING :: Total WashOut Ratio non equal to 1.
[Actor-0] Line 1 of 2
    Source Name: twogamma
    Material (associated to Source): Brain
    Ratio First WashOut Component: 0
    Half Life First WashOut Component (ns): 0
    Ratio Second WashOut Component: 155.7
    Half Life Second WashOut Component (ns): 0
    Ratio Third WashOut Component: 0
    Half Life Third WashOut Component (ns): 0
[Actor-0] WARNING :: Total WashOut Ratio non equal to 1.
[Actor-0] Line 2 of 2
    Source Name: twogamma
    Material (associated to Source): Brain
    Ratio First WashOut Component: 0
    Half Life First WashOut Component (ns): 0
    Ratio Second WashOut Component: 155.7
    Half Life Second WashOut Component (ns): 0
    Ratio Third WashOut Component: 0
    Half Life Third WashOut Component (ns): 0


What is wrong? Is there an example for a correct washouttable available (order and units of entries)?

 Thank you, Heide







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