Minutes of IC RICH1 HPD column meeting

Monday 22nd January 2007

Present: Bill Cameron, Dave Clarke, Richard Plackett, Trevor Savidge, Gabriel Vidal and Dave Websdale

Adapter Plates

We will make plates for all columns to decouple frame from column dressing critical path
This means we have to make another 18, which are required by the end of Feb
RP to check drawings
ship 4 available to CERN with rungs, and any others available

End Pieces

C&C work nearly finished, probably 2 weeks till remaining 2 complete
1 or 2 weeks for anodising
Will then ship to CERN with adapter plates
End runners bought and others to be made next on the C&C machine and then anodised

Column Mounting details

Some cables to allow RICH1 ladders to be tested in SSB to be made at IC this week - RP to organise
2 HV chains mounted, 2 more at CERN ready to be mounted

Cooling Plates

There is a problem with not all the square pipes being delivered, but it can be solved as long as the paperwork can be overcome - RAL dealing with it
32 required but only 14 sent, 6 spare RICH2 pipes at CERN
Technicians will stay working until the end of this week (26th)
Some problems with tolerances on copper plates but overcome.

HPD Box

Design complete apart form minor details like holes for rods and clamping
Solved problem of lifting vs access on patch panel in GE
115 kg with plinth added
made of 4 parts that can be machined in house
still need to check model with Rohans (TS to do this afternoon)
then possible to order material

patch panel

must not forget SHV and BNC bulkheads on voltage patch panel RP to remember


Minutes taken by Richard Plackett