Attendees: Rebecca, Eric, Elena, Armin, Eliazar, Marc
- Announcements
- Marc has an exit window design to review–FDR 3/30
- Do we want same PPM mod as XPP? ---adding a camera to view fluorescence on diamond window? and losing power meter - Alex will think about.
- He will be introduced downstream of LIC
- Descoping Detectors/Lasers from HE project BUT!! going to move scope to other future funded project (MIE 2024) and there's plenty $ there to fund full detector + CO2 cooling
Jungfrau 16M between now and HE.- DOE review March 22-23
- PDR April? if we complete raytrace? photon dump.
- Instrument ESD should be complete before PDR
- Marc has an exit window design to review–FDR 3/30
- Documents:
- ESDs - controls interlocks should live in individual component ESDs and will be tagged (in visure??) as control items
- Completed vacuum analysis and completed engineering note
- MFX + XPP mega schematic - Elena done w/mechanical - DSG-000032289; and vacuum- DSG-000032285; awaiting input from others. - when to circle back to discuss ?? wait for CXI–Will will be helping Serge with this at some point??
- ESD - LCLSII-HE-1.4-ES-0476
- Laser PRD-Alex looking for written agreement - this week?
- Alex to complete next vers based on TRAs
- ICD-Lasers - access on working site: https://slac.sharepoint.com/:w:/r/sites/lcls/lcls-2-he/wd/ICD/LCLS-II%20HE%20MFX%20Lasers%20ICD.docx?d=w73e52e9056f94e0cb9df481c8cd63f6d&csf=1&web=1&e=hJLtqF
- Rebecca/Corey : goal edits in 2 weeks - making progress...almost done
- ICD - controls
- commented on controls ICD
- complete
- RDS- released. - might need to revisit
- drawings to communicate
- installation schedule coordination
- Equipment anchoring BIO review - in process (Elena)
- stands
- stopper
- Controls Coordination - meet up to discuss status, PDR plans
- Maggie and Vincent are POCs
- Laser coordination
- check-in on Monday - check in on docs beforehand
- stayclear cubes --add to models (corey will add to his assemblies)
- monthly combo meeting - engineering or requirements/science? next on Feb 28th.
- ICDs
- PRD
- Other...
- Model -
- transport line is now under raised floor — please verify height is correct.
- can we move downstream 1.5"?
- can we shorten first drift segment by 9" to move flange away from cross member?
- interference with stand → igor is designing new cross braces
- 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–up on working site? (add link)
- Facilities coordination - need to start discussing
- Laser transport penetration. in RDS? double check.
- Humidity data to be taken - sensor recommendations? locations? humidity stability affects the mirror stability more than the temperature???
- Temp enclosure info? --need to find out status??? ask matt ? ask danny?
- assume similar to xrt? 80/20 frame with thin walls?
- When can we set up temp monitoring?- Alex found data!
- Add more sensors!!
- near CXI KB location (1 min sampling rate)
- near MFX KB location (1 min sampling rate)
- near Laser table (1 min sampling rate)
- 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
- Photon Dump electronics kickoff with BCS folks
- Nate(CAM), Eddie (PPS control lead), Matt(sys manager), John (Bcs control lead)
- Exit window
- 100um - 150um? - do we still need to specify? or analysis driven? prototype driven...
- safety device? - no
- fast shutters? - no
- Radiation safety
- Dump sizing plot:
- photon dump design
- ESD in progress with mechanics specified
- need a controls engineer (to complete prelim design of electronics and complete ESD)
- MFX_DumpResults_SteadyState_1-24-2022.docx
- energy? Alyssa has considered 3keV...
- 200W? what is necessary to consider?
- Alex send email with request to change some parameters
- photon dump design
- air attenuation in XRT enough? Yiping/Lin - early Feb
- progress meeting soon
- ray trace - progress beginning
- data gathering in process
- methodology? not decided yet
- team? may ling, cherie landa, lance lee
- prep ray trace data
- exit windows - failure modes?
- Dump sizing plot:
- Detector - MIE