[Gate-users] washout actor

[Seb]

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 
> <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
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Gate-users mailing list
>> Gate-users at lists.opengatecollaboration.org
>> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>

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