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The MFT rails inside the barrel Cage were implemented following the CAD data. Their contribution to material budget is evident from gamma conversion.

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REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass4
async-2023-pp-apass4
async-2024-pp-apass1
async-2022-pp-apass7
async-2024-pp-cpass0
async-2024-PbPb-apass1
async-2024-ppRef-apass1
async-2024-PbPb-apass2
async-2023-PbPb-apass5

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@mario6829 thanks! Is this the only change which is expected in the geometry? I'll need to regenerate the materials LUT.

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Hi @shahor02 what I implemented so far are the rails running all along the inner cage walls, which I believe are the main contributors to the material budget. I am currently implementing also the support blocks which are at the two ends of the rails and fix them to the cage edges; they may be less important due to their somehow more peripheral position. I plan to have them ready in 2-3 days.

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@mario6829 OK, thanks. We are planning to start a Pb24 apass2 next week, would be good to have all the geometry changes by that time to have the mat. LUT regenerated.

@shahor02 shahor02 merged commit 895906e into AliceO2Group:dev May 15, 2025
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@mario6829 mario6829 deleted the itsgeo branch May 19, 2025 13:17
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2 participants