2023-11-06 KB Mirrors

Attendees: Will, May Ling, Rebecca, Leland

Discussion:

• Far Hall config.
  • extension into mech
  • mirror should be configured to allow for this
    • ESD edits
• Design Progress
  • 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
  • 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 - 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?)
    • motion table in work - supporting doc
    • Will will upload - on working doc site
  • Mirror/Coating - ESD in work 95% (-0895 MFX - Title?)
• 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 10/27/2023
  • 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 - Octoberish
    • SOW
    • TPRR