[Gate-users] washout actor

[Rohling Heide]

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 <gate-users-bounces at lists.opengatecollaboration.org> im Auftrag von Seb <sebastien.jan at cea.fr>
Gesendet: Donnerstag, 09. Juni 2016 15:45
An: 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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