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Assembly Status Report for CH2 M2 X-Y and CH4 M1 U-V Modules (March 2014)

This report outlines the assembly and quality control status of the CH2 M2 X-Y and CH4 M1 U-V modules as of March 31, 2014. It details the completion of various tests, including gas leak tests and vacuum setups, alongside the successful preparation for shipment to CERN. Key findings include no gas leaks in both modules, vacuum tests meeting requirements, and readiness for transportation as noted on October 9, 2014. The documentation provided by S. Movchan is essential for tracking progress and ensuring quality in manufacturing processes for these scientific components.

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Assembly Status Report for CH2 M2 X-Y and CH4 M1 U-V Modules (March 2014)

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  1. Dubna modules assemblystatus (March 31 2014) • Status of: • CH2 M2 X-Y • CH4 M1 U-V • CH4 M1 X-Y • Shipment to CERN: • CH2 M2 X-Y+CH4 M1 U-V • Presented by S.Movchan 9-Oct-14 S.Movchan Straw manufacturing and QC 1

  2. CH2 M2 X-Ystatus 9-Oct-14 S.Movchan Straw manufacturing and QC 2

  3. 3 support tubes per each corner Central support tube Vacuum set up 9-Oct-14 S.Movchan Straw manufacturing and QC 3

  4. CH2 M2 X-Y frame leak to vacuum (July 2013) Leak estimation for final time interval dT=(4200-5600) min: dP=7.8-7.5 = 0.3 mBar dT= 5600 – 4200 = 1400 min Volume V=2.2x10**6 cm3 Leak: L = dP*V/dT = 0.3 mBar/1 * 2.2x10**6 cm3/1400 min ~ 0.5 cm3/min 9-Oct-14 S.Movchan Straw manufacturing and QC 4

  5. CH2 M2 X-Y: final gas leak test finished (March 14 2014) Gas leak results: X-view Temp. Views pressure drop Y-view 9-Oct-14 S.Movchan Straw manufacturing and QC NO gas leak 5

  6. CH4 M1 U-Vstatus 9-Oct-14 S.Movchan Straw manufacturing and QC 6

  7. CH4 M1 U-V: vacuum test (October 2013) Leak < 0.1 cm3/min (requirement L<=0.8 cm3/min) 9-Oct-14 S.Movchan Straw manufacturing and QC 7

  8. CH4 M1 U-V: final gas leak test finished (March 26 2014) Gas leak results: U-view Temp. Views pressure drop V-view NO gas leak 9-Oct-14 S.Movchan Straw manufacturing and QC 8

  9. Dumping system installation: 2 options -> “blue frame” and “grey frame” CH2 M2 X-Y CH4 M1 U-V 9-Oct-14 S.Movchan Straw manufacturing and QC 9

  10. Shipment to CERN: CH2 M2 X-Y ready for transportation dP= 425 mBar of Ar 9-Oct-14 S.Movchan Straw manufacturing and QC 10

  11. Shipment to CERN: CH4 M1 U-V ready for transportation dP= 402 mBar of Ar 9-Oct-14 S.Movchan Straw manufacturing and QC 11

  12. Shock logs installation CH2 M2 X-Y CH4 M1 U-V 9-Oct-14 S.Movchan Straw manufacturing and QC 12

  13. Common view 9-Oct-14 S.Movchan Straw manufacturing and QC 13

  14. Mercedes Atego 1218 9-Oct-14 S.Movchan Straw manufacturing and QC 14

  15. Loading time and shocklog check 9-Oct-14 S.Movchan Straw manufacturing and QC 15

  16. go to CERN … (March 31 2014 13:10) 9-Oct-14 S.Movchan Straw manufacturing and QC 16

  17. CH4 M2 X-Y 9-Oct-14 S.Movchan Straw manufacturing and QC 17

  18. CH4 M2 X-Y: vacuum test done (January 27 2014) Leak < 0.1 cm3/min (requirement L<=0.8 cm3/min) 9-Oct-14 S.Movchan Straw manufacturing and QC 18

  19. CH4 M2 X-Y installed for assembly (March 11 2014) 9-Oct-14 S.Movchan Straw manufacturing and QC 19

  20. CH4 M2 X-Y status: X-view Glued layers: first - March 14 second - March 21 3-d - March 29 9-Oct-14 S.Movchan Straw manufacturing and QC 20

  21. Common view CH2 M2 X-Y READY for shipment BOX for CH4 M2 X-Y CH4 M1 U-V READY for shipment 9-Oct-14 S.Movchan Straw manufacturing and QC 21

  22. CH4 M2 X-Y: schedule • Straw gluing – March-May 2014 • Straw cutting + gas leak test – May 2014 • Wiring + HV test – end of May 2014 • Gas manifold installation – May-June 2014 • Final gas leak test – June 2014 • Ready for shipment – end of June 2014 • Delivery to CERN - beginning of July 2014 9-Oct-14 S.Movchan Straw manufacturing and QC 22

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