# PETscanner

**URL:** <https://castor-project.discourse.group/t/petscanner/248>\
**Category:** General Discussions\
**Created:** [January 10, 2022, 12:25am UTC](https://castor-project.discourse.group/t/petscanner/248 "2022-01-10T00:25:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sadek\_Nehmeh](https://avatars.discourse-cdn.com/v4/letter/s/dc4da7/32.png) [@Sadek\_Nehmeh](https://castor-project.discourse.group/u/Sadek_Nehmeh)\
**Post date:** [January 10, 2022, 12:25am UTC](https://castor-project.discourse.group/t/petscanner/248/1 "2022-01-10T00:25:44Z")

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Hi Castor-Users,

Could anyone advise on how to create a castor geometry file for a GATE PETscanner model (with level1, level2, level3, and level4)?

Thanks,

Sadek Nehmeh

Weill Cornell Medicine

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**Author:** ![saaidi\_rahal](https://avatars.discourse-cdn.com/v4/letter/s/898d66/32.png) [@saaidi\_rahal](https://castor-project.discourse.group/u/saaidi_rahal)\
**Post date:** [January 19, 2022, 10:45pm UTC](https://castor-project.discourse.group/t/petscanner/248/2 "2022-01-19T22:45:29Z")

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Dear Sadek,

Castor is only supported the CylindricalPET System with (Rsector, module submodule, crystal , layer)

Best regards