HL-LHC BGI - Mechanial design review

Name: HL-LHC BGI - Mechanial design review
Start: 2024-06-24T11:00:00+02:00
End: 2024-06-24T12:00:00+02:00
Location: No location set

Monday 24 Jun 2024, 11:00 → 12:00 Europe/Zurich

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Meeting minutes

A magnetic field of 0.5 T is the minimum required to achieve less than 5% precision error in the measurements.
It is crucial that the transverse component of the magnetic field is close to 0.
Option 3, the "Rectangular flange," seems the most optimal in terms of flexibility concerning TPX3 or TPX4 integration.
Additionally, RF impedance studies appear to be the most promising.
The envelope considering the TPX4 option is larger than that of the TPX3.
For the design of the main magnet, we agree to set a 180 mm aperture.
TPX3 is not currently operational in SPS due to interferences preventing communication with the chip.
TPX4 has not yet been tested.
Two options have been proposed to consolidate TPX3:

1. Test the SPS-BGI tank in EMI to replicate the environment where the detectors are installed and resolve communication issues.

2. Install an SPS-BGI tank adapted to the LHC layout in the next YETS 24-25:

Discuss with the workshop the feasibility of producing a tank for YETS 24-25.

Discuss with the impedance group the integration of the SPS-BGI tank into the LHC layout at the location where the old LHC-BGI is installed.

Conduct a vacuum acceptance test of the SPS-BGI components (Staystik).

*Action*	*Responsible*
· Discuss with the workshop the feasibility of producing a tank for this YETS 24-25	ML
· Discuss with impedance group the integration of SPS-BGI tank into LHC layout at the location when the old LHC-BGI are installed	ML
· Vacuum acceptance test of the SPS-BGI components (Staystik) o Order Staystik o Vacuum acceptance test process completion	XEI ML
· Contact EMI to perform an electromagnetic interaction study to test the electronics	XEI

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