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CALIFA-SiTracker-GLAD geometry conflict Wed, 08 March 2017 16:26
 Anna Corsi Messages: 7Registered: August 2016 Location: CEA Saclay occasional visitor From: 140.181.8*
Hello,

I find a conflict of geometry among the following detectors, as in attached picture.

Could you tell me which detectors should be moved to simulate experiments with setup expected for 2018?

Best regards,
Anna

Re: CALIFA-SiTracker-GLAD geometry conflict [message #20498 is a reply to message #20496] Thu, 09 March 2017 19:25
 Hector Alvarez Pol Messages: 21Registered: July 2015 Location: Univ. Santiago de Compost... occasional visitor From: *usc.es
Hi Ana,

last time I was testing the CALIFA position, it was correctly located with respect to the nominal target position.
If this is true, the magnet is misplaced by around half a meter in this geometry file.

For a fast check to determine if CALIFA is correctly centered, you could find where the origin is in your plot or simply visualize a reaction vertex...
the CALIFA barrel should be located as it is in the attached picture (side view).
A displacement of half a meter as it is shown in your pic would mean that the vertex could be located outside the Barrel.

Regards,
• Attachment: 1211.jpg
Re: CALIFA-SiTracker-GLAD geometry conflict [message #20508 is a reply to message #20496] Mon, 13 March 2017 14:41
 Michael Heil Messages: 4Registered: July 2015 occasional visitor From: *gsi.de
Hello Anna,
here is my view of how to solve this problem: We used to have the target Position at x=0, y=0 and z=0 per Definition. The distance from the target position to the entrance flange of GLAD is 1062 mm. And Califa has also a nominal position relative to the target. If both are at this position there should be now overlap anymore.
Re: CALIFA-SiTracker-GLAD geometry conflict [message #20526 is a reply to message #20508] Tue, 14 March 2017 22:31
 Anna Corsi Messages: 7Registered: August 2016 Location: CEA Saclay occasional visitor From: *fbx.proxad.net
Dear Hector and Michael,