Attendees: Rebecca, Antonio, Elena, Vincent, Eliazar


  •  Documents:
    • Controls ESD - new language from Alex - Vincent to check

      "The MFX 6DOF Sample Table shall be controlled and integrated with  appropriate interlocks."

      "The MFX 6DOF Sample Table shall be controlled and integrated with  appropriate interlocks."

    • Instrument ESD - Released
    • 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
    • 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- R1
      • drawings added
    • Equipment anchoring BIO review - in process (Elena)
        • stands - complete
        • stopper
  • Controls Coordination - meet up to discuss status
  • Water Routing
    • regroup with F&O in January
    • add hardware to model
  • Detector Coord
    • Walk through with Jana in FEH to look at space for CO2 chillers in Mezzanine
  • Laser coordination
    • Engineer: Alan Mihanari, Scientist: Patrick Kramer
    • ICD/PRD/Laser ESD still in progress
    • transport line is now under raised floor — please verify height is correct.
      • stay-clears for in-between laser table and diagnostic stand - interface is tricky
        • LSS safety system shutters are there
        • controls need access- access from raised floor side?
    • 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)
  • 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!!
        1. near CXI KB location (1 min sampling rate)
        2. near MFX KB location (1 min sampling rate)
        3. 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
        • 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 design work starts Jan
  • 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
    • 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
      • MEC lockout? timeline?
    • KB
      • chiller check - rack space
      • check perimeter (for enclosure)
      • check vac options - "aiming foe 5e-10 in mirror chamber"
        • check outgassing of mirror chamber - Ali has smaller
        • run w/out safety factor for reference
        • add pumps on PPM
    • exit windows - failure modes?
  • Detector - MIE
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