[Gate-users] timeslice about radiotherapy simulation

[Qide Xiao]

yes，you are right
于 2014年04月18日 17:43, 刘斌 写道:
> Hi,
>   I do  IMRT simulation on GATE6.1,  The single leaf's position of multileaf
> collimator changes along with different fields. 
>  If  I set the way of single leaf's movement by using
> “genericRepeaterMove", the placements of leafs are following  :
>
> ###### List of placement (translation and rotation)
> ###### Column 1 is rotationAngle in degree
> ###### Columns 2,3,4 are rotation axis
> ###### Columns 5,6,7 are translation in mm
> Time s
> NumberOfPlacements 3
> Rotation deg
> Translation mm
> #Time # Placement 1 # Placement 2 # Placement 3
> 0        10 0 1 0 20 0 0    10 0 1 0 80 0 0       10 0 1 0 -60 0 0
> 250.716  20 0 1 0 21 10 0   20 0 1 0 53 10 0      20 0 1 0 -28 10 0
> 492.93   30 1 1 0 15 0 0     30 1 1 0 19 0 0      30 1 1 0 -35 0 0
>
> And  read the  timeslice file by lines " /gate/application/readTimeSlicesIn
> data/precise_BeamSource.timeslices",
> The content of  precise_BeamSource.timeslices  are following:
>
> # Time slicing 
> Time s 
> 0
> 250.716
> 492.93
>
>  In my opinion , the three leaf positions will be set  "  20 0 0  80 0 0
> -60 0 0 "  in  0 seconds respectively ,  change to be " 21 10 0  15 10 0
> -28 10 0" in 250.716 seconds respectively, and the last positon  will be "
> 30 1 1 0 15 0 0   19 0 0   -35 0 0" in 492.93 seconds.  Is the idea  right? 
>
>
>
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