[Gate-users] Simulation stuck at geometry initialization

[Khalid Hussain]

Dear gate users,

I humbly request and need your favor, *my gamma camera simulation stuck at
Initialization of geometry without any error or even warning.*
The problem is in repeat cubic array, if I use partial value of this repeat
cubic array then it works fine but stuck for the required value that cover
the whole collimator.

I attached whole detail and macro files in this thread.

Your cooperation is highly appreciated.

Thanking you.

On Sat, Sep 5, 2020, 7:44 AM Khalid Hussain <khalidhussain1134 at gmail.com>
wrote:

>
> Dear Gate users,
>
> I checked geometry from each x,y and z directions and it seems to be fine
> but still simulation stuck without any error at *Initialization of
> geometry *
> [image: image.png]
>
> The macro files are also attached
> Your kind cooperation is highly appreciated
>
> Regards
> Khalid Hussain
> PhD Student, UPM
>
>
> On Wed, Sep 2, 2020 at 10:24 PM Khalid Hussain <
> khalidhussain1134 at gmail.com> wrote:
>
>> Dear Gate users,
>>
>> My simulation stuck at geometry initialization in vGate 8.2, I have
>> tested the geometry by expanding in two dimensions and it seems okay for
>> all combinations but stuck when using full geometry in 3D.
>>
>> Please see below script of suspected part of geometry.
>>
>>
>> ############################
>> # LOW ENERGY HIGH RESOLUTION COLLIMATOR #
>> ############################
>>
>> # C O L L I M A T O R
>>
>> /gate/SPECThead/daughters/name collimator
>> /gate/SPECThead/daughters/insert box
>> /gate/collimator/geometry/setXLength 59.1 cm
>> /gate/collimator/geometry/setYLength 44.5 cm
>> /gate/collimator/geometry/setZLength 4.0 cm
>> /gate/collimator/placement/setTranslation 0. 0. -3.8 cm
>> /gate/collimator/setMaterial Air
>> /gate/collimator/attachPhantomSD
>> /gate/collimator/vis/forceWireframe
>> /gate/collimator/vis/setColor white
>>
>>
>> ## Insert upper boundary of hole
>>
>> /gate/collimator/daughters/name hole
>> /gate/collimator/daughters/insert box
>> /gate/hole/geometry/setXLength 0.17 cm
>> /gate/hole/geometry/setYLength 0.17 cm
>> /gate/hole/geometry/setZLength 0.02 cm
>> /gate/hole/placement/setTranslation 0. 0. 0. cm
>> /gate/hole/setMaterial Lead
>> /gate/hole/vis/forceWireframe
>> /gate/hole/vis/setColor blue
>> ## Insert lower boundary of hole
>>
>> /gate/hole/daughters/name lowerB
>> /gate/hole/daughters/insert box
>> /gate/lowerB/geometry/setXLength 0.15 cm
>> /gate/lowerB/geometry/setYLength 0.15 cm
>> /gate/lowerB/geometry/setZLength 0.02 cm
>> /gate/lowerB/placement/setTranslation 0. 0. 0. cm
>> /gate/lowerB/setMaterial Air
>> /gate/lowerB/vis/forceWireframe
>> /gate/lowerB/vis/setColor green
>>
>> # FILL THE WHOLE COLLIMATOR WITH SEPTA-HOLE
>> /gate/hole/repeaters/insert cubicArray
>> /gate/hole/cubicArray/setRepeatNumberX 347
>> /gate/hole/cubicArray/setRepeatNumberY 261
>> /gate/hole/cubicArray/setRepeatNumberZ 100
>> /gate/hole/cubicArray/setRepeatVector 0.17 0.17 0.04 cm
>>
>>
>>
>> Any help is highly appreciated.
>>
>> Thanks and regards
>> Khalid
>>
>
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