Barrel Support Structure and Barrel Integration Preparations

1
Barrel Support Structure and Barrel Integration
Preparations

• Doug Benjamin
• Duke University HEP

2
Barrel Support Structure (BSS)

• Fabricated in Russia
• Components A side and C side end Frames
• Inner cylinder
• Outer cylinder (in two halves)

3
Dukes Role in BSS assembly

• Integral part of small team (6 people Jack
  Fowler and DB)
• Jack Fowler one of two engineers
• DB physicist responsible
• Verify the BSS assembly Frame
• Develop and verify BSS assembly
• JF designed inner cylinder flange.

4
Dukes Role in BSS assembly (Cont.)

• Measure individual BSS components
• Analyze the measurement results

5
Dukes Role in BSS assembly (Cont.)

• Shield the BSS components
• Assemble the BSS
• Verify the BSS alignment results

6
Preparations for integration

• DB was physicist reponsible for integration
• Developed the procedures to be used during
  integration
• Verified the procedures
• DB and JF produced a lengthy list of items to be
  finished before integration.
• This list was adopted by an internal review
  committee on barrel integration readiness

7
Preparations for integration (cont.)

• Prepared the infrastructure require for
  integration (scolding, gas lines, HV lines, HV
  software, module protection)
• Prepared the modules for integration (Capacitor
  insertion)
• First module permanently installed June 2004
• DB passes responsibility for Barrel integration
  to Chiho Wang during June 2004
• DB could not travel as much ( 60 of time at
  CERN) for family reasons.

8
Conclusions

• Duke played a vital role in the BSS assembly
• Without efforts of JF and DB BSS assembly and
  verification would have not happened in a timely
  manner.
• DB and JF made crucial and significant
  contributions to preparations for the start of
  integration. This required that both spend large
  amounts of time at CERN for the past year (gt 6
  months each).
• Excellent preparation for integration has meant
  that integration has gone smoothly (see Chihos
  talk).