Attendees: Will, Alex, Rebecca, Eliazar, Elena, Armin

Discussion:

  • Far Hall config. - where does this requirement go? MFX instrument PRD??? Or KB mirror PRD???
  • Design Progress
    • Chiller details
    • Thermal enclosures - need to add requirements to chamber ESD
    • Chamber Interface and Envelope - horiz. complete; vert almost done.
      • Randy is working on mechanical interface; working on cooling
  • PRD updates - separate sections (MFX, CXI, nanoCXI) https://slac.sharepoint.com/:w:/r/sites/lcls/lcls-2-he/wd/PRD/LCLSII-HE-1.4-PR-0294.docx?d=w782e6d430b214d399d44ee9d041b46e3&csf=1&web=1&e=ValzfM
    • Need a decision about where to put bypass requirement
    • New requirement added - needs review then can go for sig.
    • can we review this? Leland! Alex!
      • stability
      • coatings- how many stripes, how big?, material; (current is B4C 14mm; Rh 6mm; no thickness specified - 50nm?)
        • reflectivity specification
        • ref. map (will can provide)
      • energy range
  • ESD Progress
    • Bender -
      • New ESD and FDR material(Mirror, bender, actuator, chamber) for Bender. Documentation from L2SI not existing. Number and Title?
        • some analysis needed
        • ESD - a month of work?
        • models and drawing are near FDR level ~90%
        • undocumented analyses - should these be redone? who did this before? Danny and Lin? Only have CDR level stuff.
        • measurements of existing system - we have some metrology
        • do we have records of old requisitions? maybe those point to some other documentation...Eliazar may be able to help there (procurement team help)
      • In house procurement so drawings will serve as the document?
      • Engineering note explaining analysis and design choices + drawings? (will also need assembly traveller later) ; to supplement existing L2SI documentation?? ask May Ling
        • complete by end oct - driving review date
    • Chamber - ESD in work 95% (-0900 MFX - not combined with CXI - Title?)
      • Bob Baker and Jean Pierre have been reviewing
      • procurement - expected lead time 20months?
      • motion table in work - supporting doc
      • Will will upload - on working doc site
    • Mirror/Coating - ESD in work 95% (-0895 MFX - Title?)
      • will be combined with CXI
      • Need drawings and profiles for CXI
      • procurement - expected lead time 20months?
  • large displacement mirrors (in plan for DXS, CXI) - but not in plan for original MFX - need to specify this feature if we need it (also impacts radiation safety, exit flanges?, etc - other impacts to be consider)
  • Schedule - next milestones
    • CXI KB FDR - 10/18 - more of a PDR , or push FDR
    • SOW? - see
    • MFX KB FDR?- plan is (Will will follow up)
    • DXS Offset Mirrors FDR- 12/05/2023
    • TPRR? (CXI vs MFX) - CXI might need an FDR review due to the focus scheme
    • For MFX:
      • FDR - February 15th
      • SOW
      • TPRR
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