[Castor-users] Problems with cylindricalPET reconstrution for Cherenkov Photons....

[Simon Stute]

Hi all,

Good to know, and thank you Maxime for your active contributions !

Best
Simon

Le 17/07/2018 à 13:51, Dania Consuegra a écrit :
>
> /Dear Maxime/
>
> /Thanks for answering. //You were right !!!/
>
> /Redefining the attach part of my ///Geometry_CylPET.mac ///and using 
> setDepth 4 I get my first images using CASToR for Cherenkov Photon PET…./
>
> Kind regards,
>
> Dania Consuegra Rodríguez
>
> /Phd student //*Jožef Stefan Institute*/
>
>
> /#=======================================================================/
>
> /# Detector Configuration (Attaching)/
>
> /#=======================================================================/
>
> //gate/systems/cylindricalPET/rsector/attach block/
>
> //gate/systems/cylindricalPET/crystal/attach radiator/
>
> /#/gate/systems/cylindricalPET/module/attach window/
>
> /#/gate/systems/cylindricalPET/module/attach photodetector/
>
> //gate/radiator/attachCrystalSD/
>
>
>
> 2018-07-17 5:43 GMT+02:00 Maxime Toussaint 
> <maxime.toussaint at usherbrooke.ca 
> <mailto:maxime.toussaint at usherbrooke.ca>>:
>
>     Hi,
>
>     I am not sure I understand your situation/setup but here are a
>     couple of ideas.
>
>     First, the "radiator" seems to be your annihilation photons
>     detector while "window" and "photodetector" are there for visual
>     appreciation (Not used in GATE simulation), am I right? If yes,
>     why are you using "/gate/window/attachCrystalSD" over
>     "/gate/radiator/attachCrystalSD"? Second, I am not sure which
>     "level" are required by CASToR geom creator, but it would be a
>     fair guess to say that "crystal" is one of them (or CASToR uses
>     attachCrystalSD to deduce which is the readout depth?). Also, it
>     might be worth to attach a copy of your Geometry_CylPET.mac. Not
>     all geometry creation/manipulation command of GATE are supported
>     by CASToR toolkit and the resulting ".geom" won't help much in
>     that case.
>
>     Have a nice day,
>     Maxime Toussaint
>
>
>
>     On 07/16/2018 08:08 AM, Dania Consuegra wrote:
>>
>>     Dear CASToRusers,
>>
>>     I have been able to use CASToR reconstruction with a conventional
>>     CylindricalPET with nice results. However, I'm having problems
>>     with adapt my PETscannerfor Cherenkov Photons to a CylindricalPET.
>>
>>
>>     For my PETscannerI was defined previously the attach part as follows:
>>
>>
>>     /gate/systems/PETscanner/level1/attach block
>>
>>     /gate/systems/PETscanner/level2/attach radiator
>>
>>     /gate/systems/PETscanner/level3/attach window
>>
>>     /gate/systems/PETscanner/level4/attach photodetector
>>
>>     /gate/window/attachCrystalSD
>>
>>
>>     The block which is the structurethat I repeat in the ring (I have
>>     4 rings) is now my rsector. The problem is that my radiator
>>     (PbF_2 ), my window and my photodetector (SiPM)are all inside
>>     this main block and I repeat each structure individually inside
>>     the block. I /c//an/'/t /define in the attach part my window as a
>>     submodule because is/n/'/t //a /box inside the radiatorand I
>>     /c//an/'/t //define my //photodetector //as a crystal because
>>     is//n't //a box inside the //window…. /
>>
>>     /I used //setDepth4 (also tested with 2) and the reconstruction
>>     //was//n't//useful…./
>>
>>     /
>>     /
>>
>>     /gate/systems/cylindricalPET/rsector/attach block
>>
>>     /gate/systems/cylindricalPET/module/attach radiator
>>
>>     /gate/systems/cylindricalPET/module/attach window
>>
>>     /gate/systems/cylindricalPET/module/attach photodetector
>>
>>     /gate/window/attachCrystalSD
>>
>>
>>     /gate/digitizer/Singles/insert opticaladder
>>
>>     /gate/digitizer/Singles/insert readout
>>
>>     /gate/digitizer/Singles/readout/setDepth 4
>>
>>
>>     I also attached the DaniaGeom.geom that was generated by CASToR
>>     in the config folder….
>>
>>     I think everything is in order except of course, the size of the
>>     PbF_2 crystals….
>>
>>     Any help I would really appreciate it….
>>
>>     Kind regards,
>>
>>     Dania Consuegra Rodríguez
>>
>>     /Phd student //*Jožef Stefan Institute*/
>>
>>
>>
>>
>>
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>
>
>
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