Attendees: Marc, Alex, Eliazar, Rebecca, Corey, Eric, Elena, Joe
- MFX + XPP mega schematic
- ESD - start!
- ICD - controls!
- start talking with Maggie about rack space in diagnostic stands
- Laser PRD coordination
- Model -
- transport line is now under raised floor — igor looking
- interference with stand → stand needs revision; wait for info
- raised laser table → no showstopper issues ?
- maybe extra bracing down the line -
- stay-clears for in-between laser table and diagnostic stand - interface is tricky
- LSS safety system shutters are there
- controls need access
- Ongoing requirements negotiations/meetings
- liquid phase chemistry stuff wasn't really captured → meeting on Monday with Tim VD/Roberto?
- review of historical laser parameter requests
- Tim was invited to last mtg. and explained his requirements
- NO NEED FOR CHANGES. Written Agreement pending. (CC DF)
- we are also ready to design laser out-coupling when laser team has details/requirements available
- Does the detector situation matter? beam tube size? this geometry is important...
- ideal hole diameter?
- what is needed?
- what is common ?
- document on confluence and eventually in PRD
- Resend Z location info to M. Greenberg - help him figure out divergence etc. which will let us know what hole diameter we need...
- thermal issues (see below)
- ICD? Did dileep start?
- Model -
- Facilities coordination - need to start discussing
- When can we set up temp monitoring?
- Detector Cooling
- Room Temperature control - can we control temperature locally at/near MODS table? easier? - first we need requirements
- +/- .1 deg stability target - what does "facilities" think of this?
- where exactly is stability needed?
- air flow rate?
- think about cable runs and duct work - maybe we can add in next revision run
- see example from Frank? https://slac.sharepoint.com/sites/lcls/lcls-2-he/wd/RDS/LCLSII-HE-1.4-RD-0439.docx (20fpm ave)
- do we have data? we have data at the exit window...moar data needed? can we turn temp sensor on? with data logger?
- open air flow meter? should we do this?
- environment around mirror systems need special consideration?
- Joe also has some data (tyler johnson has designed some environmental sensor boards)
- stability more important than accuracy of temp - can we control this operationally (letting things warm up and settle?)
- timing impact
- pointing impact
- local control may not be possible → room data sheet?
- get some data about current air handling system for a reference point
- JJ zooms/visit (27th) - questions about sticky slits
- Armin added LOC to functional diagram
- Elena is working on device list/mechanical schematic
- Alex will send us list of "old" names
- HAPPI database
- Alex will send us list of "old" names
- Radiation safety
- air attenuation in XRT enough? Yiping.
- Detector - current plan? 2M +140k
- 2M in a 16M housing will end up costing ~$700k more than a 2M in 2M housing.
- Angelo needs to spend exact numbers to Armin
- Alex reached out to users/data people → 2M is probably not good enough
- Meeting with Angelo last week
- Angelo would like to be looped in on the plan as we inch forward
- even if we have 2M in 16M housing, cost increase should be minimal
- 4M minimum ~2angstrom resolution (but we need ~1.4)
- with 8M ~1.6A
- Number of modules shouldn't affect total depth
- Hole diameter?
- option: build an 16M shell with 4M modules?
- Alex will talk to David
- Angelo presentation?
- Costs? Options?
- 8M preferred - potential BCR (baseline change request)
- 2M may not be sufficient for most science cases
- Alex will create a summary of what we can achieve with each so we can do a cost/benefit analysis
- cost from Angelo?
- sparkpix better for smaller detector?
- need to talk about this a bit more
- Have we explored all funding sources?
- Alex might chat with Angelo to discuss options (speed/Area tradeoffs)
- 2M in a 16M housing will end up costing ~$700k more than a 2M in 2M housing.