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Progressing Hybrid Module Development with ABC130: Key Considerations and Next Steps

The current status of the FR4 hybrid shows promising results with 10 ABC130s functioning effectively. Conversations revolve around the potential re-spin of circuits to develop a complete module, which would require both left-handed and right-handed circuit flavors. This allows for an assessment of integrated module powering and its implications for bus tape and stave designs. Quick turnaround production in FR4 is planned, with ABC130s expected to be ready within 40 days. Successful outcomes could lead to a full Kapton hybrid aligned with HCC anticipated by September/October.

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Progressing Hybrid Module Development with ABC130: Key Considerations and Next Steps

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  1. WP3 Hybrid Discussion • ABC130 hybrids, what next? • Current status is FR4 hybrid with 10 off ABC130s shown to work • Consider re-spin of circuits to make a full module? • Would require both left-handed and right-handed flavours of circuit (without HCC) • Allows one to evaluate integrated powering of modules – works or not • Important to know as has implications for Bus Tape/Stave etc. • Made in FR4, as presently done, for quick turn-around • Would be ready for returning ABC130s (delivery expected in ~40 days?) • Resulting in a complete module demonstrator early summer • If successful, then go for a full kapton hybrid aligned to HCC • In anticipation of HCC arriving September/October

  2. WP3 Hybrid Discussion, cont’d • Some thoughts on testing of hybrids on a panel • 8 hybrids on a panel, need to consider data I/O hook up to HSIO, temperature interlock and powering • Hook up to HSIO – consider using ATLAS EoS – Commonality of components • Provides common TTC broadcast and data paths from hybrids back to HSIO • Also provision for hybrid NTC monitoring • Fits within a single 40 way Samtec connector (as presently used on HSIO), to be added to EoS • BUT • Monitoring of hybrid NTCs is also done via HCC – need to test that this works • Happy to readout NTC via HCC only? • Bundle with EoS as well (is this possible)? • Previously considered hybrid NTCs acting as interlock during testing • Power dissipation much lower than ABCN-25 hybrid – much easier to manage? • Consider adding temperature interlock to cooling pipe (and vacuum) as first level of defence? • Followed by hybrid NTC • Powering of hybrids – what scheme? • DCDC – one circuit for 2 hybrids (4 total). Comes as plug-in, as used for (present) module testing • Serial powering – would require single circuit per hybrid (8 total), as plug-in • But, present SCT hybrids tested at elevated temperature (hybrid temp of 55°C for 90hrs) • Cooling of DCDC could be problematic at elevated temperature (thermal shut down of regulator) • Serial powering less of a problem...

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