[Castor-users] A problem : Different Castor (castorGATERootToCastor) results with same GATE geometry architectures

[tmerlin]

Dear Xiaozhuang,

Thank you very much for exposing this issue and for your detailed file. 
The differences in reconstructions originated from an incorrect line in 
the conversion code, leading to an erroneous reading of the number of 
crystals when the first rsector is located on the Y-axis, and from the 
different possible ordering IDs in GATE, as you mentioned. I attached to 
this mail an update of the code with a fix which should solve this 
issue. Please tell me if you encounter any other troubles.

Kind regards,

Thibaut



On 28/08/2018 03:59, ahwxz123 at mail.ustc.edu.cn wrote:
> Dear Castor users,
> I am a beginner using GATE and Castor. Recently I found an interesting 
> situation when i used castor-GATERootToCastor  to reconstruct the GATE 
> results, it seemed that  Castor unitID probably did not match to every 
> GATE geometry definition. (More detail in attachment PDF file)
> In GATE simulation  there are many ways to establish geometry 
> architecture. i could  start planting  the rsector at any axis , and 
> after repeating units,  and rotating the angle to define the first 
> rsector location.   But i received  the different results from two 
> GATE seemed same geometry simulation when i used converted inputfile 
> from castor-GATERootToCastor.  I checked and found that the detector 
> unitID are different in GATE geometry, so castor-GATERootToCastor 
> should not directly use the ID form GATE, or  it is better to verify 
>  these ID were quite correctly good in  castor -GATERootToCastor.
> I wrote two GATE mac files in attachments with different start-rsector 
> planting, if you are interested in the comparison  of GATE results  , 
> you can check and do some simulation.(PS: before runnig the mac files 
> , please reset GATEMeterials.db path in your PC).
> regards,
>
> --
> Xiaozhuang Wang
> ahwxz123 at mail.ustc.edu.cn <mailto:ahwxz123 at mail.ustc.edu.cn>
> Room410, The Department of Modern Physics, University of Science and 
> Technology of China
> No.96, JinZhai Road Baohe District,Hefei,Anhui, 230026,P.R.China.
>
>
>
> _______________________________________________
> Castor-users mailing list
> Castor-users at lists.castor-project.org
> http://lists.castor-project.org/listinfo/castor-users

-- 
Thibaut MERLIN -- PhD

Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90

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