B0 engineering and design

Thursday 15 Oct 2026, 08:00 → 09:00 US/Eastern

 

https://jlab-org.zoomgov.com/j/1615403530?pwd=TnFCTTVodjkxUm12amFtbDJkeThSUT09

 

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Meeting topics:

*Cooling updates

*Stave requirements and tracker layout

*space for RDOs

 

 

Review in December

• Schedule is almost finalized, need to confirm with IJCLab on cooling discussion/presentation.

 

Discussion about RDO and cable routing

• As discussed in the Roman pots meeting, we really need to look at a dedicated RDO design to meet the B0 constraints. 
• For cable routing, Igor pitched an idea for an adapter board which can be used for cable routing to avoid multiple bends in ribbon cables coming from the stave.
  • Alex sent Igor/Zvi/Michael/Avishay the current v0 Roman pots module board design to evaluate the needed traces for such an adapter card, among other questions.
• RDO (lpGBT) can support 28 ASICs, but there is a question about rate limits. Rates were calculated by Alex: https://indico.bnl.gov/event/34480/contributions/130196/attachments/72787/124623/FF_backgrounds_and_rates_Jentsch_9_28_2026_v1.pptx
  • Need to ensure we know how many ASICs per RDO we can actually support so we can finalize the needed number of RDOs.
  • Will follow-up with DAQ and electronics.

 

CAD model, beam pipes, and support

• Need to have a dedicated meeting to ensure the detector CAD, magnet CAD, and beampipe are all at the latest version so we can evaluate all constraints and ensure there are no conflicts. --> needs to happen ASAP.
• Guna has the latest beam pipe model, Avishay has the detector model.
• Need to fully understand available supports for the detector(s).

 

Discussion of CD-3C scope

• Aim is to buy ALL SiPMs using CD-3C budget, including for the ancillary detectors.

 

 

08:00 → 08:20 Updates on cooling

08:20 → 08:40 Staves requirements and layout

08:40 → 08:50 Space for RDOs

08:50 → 09:00 AOB

Speaker: Alexander Jentsch (Brookhaven National Laboratory)