Choose timezone
Your profile timezone:
L3 Weekly meeting
→
America/New_York
Other Institutes
Other Institutes
,
L3 ITk Strips weekly meeting
Zoom Meeting ID
61127600500
Host
Gabriella Sciolla
Alternative host
Tony Affolder
Useful links
Join via phone
Zoom URL
Cores:
- Continued starting 2 A-side cores/week
- Extensive flatness probe measurements on failed C-side core; will show slides on Friday. Think it was a ridge on EoS region, have added a mitigation for this in future builds.
- Shipped 4 LSA cores to BNL (received); Yale will ship out 2 more cores to BNL early next year.
- US core 65 sent to QMU, showed higher thermal impedance. Discussed, theory: conditions in US are different than UK. In the US, core kept in dry box, which isn't the case in the UK. Will cycle again (as wet condition) then ramp temperature to 40 C and cycle for a week (see what happens as things dry out)
- RAL could test one of the four A-side cores that are still (dry) in their package, although it's not clear if this is easy given their setup. Or, they send us one of their cores. It could also be system leaks. (Try humidity tests first though.)
Power boards:
- Over voltage when testing new power boards (with bPOL enabled); investigating, but currently have enough for assembly
- Should get another shipment to sites in ~2 weeks
- Progressing with Amtech and EPEC procurement orders
Modules:
- Some GPC hybrid flexes missing some SMDs, marked red on array
- Did 5 pull tests on DSG boards, looks good so far
- BNL module assembly rate recovered after recent slow downs
- LBNL ramping up to 18 modules/week; only built 4 last week due to power board scarcity
- UCSC built 24 modules last week (!!) more than full rates; bond head installed successfully last Wed
Stave Assembly:
- Didn't load last week; to much going on (new wire bonder comissioned! when moving programs, bumped into issues; need to set specific parameters by next week)
- Loading one stave Tues/Wed; will wire bond tomorrow
- Plan to send another 4 staves to CERN
- First two weeks of May --> Load Tues/Wed/Thurs --> 1.5 staves/week
- Third week of May, fall back to 1 stave/week to asses how fast we want to go
- Can accept more shipments of modules now (30 from each site)
There are minutes attached to this event.
Show them.