WBS 1.8 Review Frame, Absorbers and Stand

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WBS 1.8 ReviewFrame, Absorbers and Stand

• Jim Kilmer
• Sept. 7 2005

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WBS 1.8 Review

• Short overview
• What WBS1.8 covers
• Cost Drivers
• Steel flatness
• Questions we need to answer soon

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MINERnA

• Deborah Harris Fermilab
  WIN05, Delfoi

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Basic Detector Geometry

• Active segmented scint. detector 5.87 tons
• 1 ton of US nuclear target planes (C, Fe, Pb)

• DS Cals, Nucl. Targets just add absorber to
  scintillator planes
• Magnetized OD (HCAL) frames

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Steel Outer Detector
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Support Stand
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What WBS 1.8 covers

• Design, Procurement and Installation
• OD frames
• Stand and bookend
• Installation strongbacks
• Nuclear target materials
• Prototype materials

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CSP part 1
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CSP part 2
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CSP part 3
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Cost Driver 1

• EDIA
• Engineering and design is 22 of total cost
• Need to include ALL required tasks
• Need to maximize effort to complete on time
• Complete as much on RD as possible
• Offload to other institutions

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Cost Driver 2

• Steel cost is 35 of total
• Significant improvement in new quote
• Do we have everything? Bolts, spacers, clips for
  holding ID and nuclear targets (not yet designed)
  are missing
• Quality is also a big issue (flatness)

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Steel flatness

• Driven by desired gap distance of 1/8 (Ron
  Ransome)
• ASTM standard for plate is MUCH less restrictive
• Roller leveling of steel or Blanchard grinding of
  plates is probably cost prohibitive

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ANSI flatness spec(ASTM A6)
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Questions to be answered

• Need to finish design of axial bolts, clips,
  spacers, and ???
• What testing will be required of finished frames?
• How many Rochester techs will be available?
• What will the module fabrication plan look like?