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13-Oct-14

Dubna modules assembly status (December 12 2013) Straw manufacture: CH4 M2 X-Y - 900 straws are ready spare - about 300 pc CH2 M2 X-Y status CH4 M1 U-V status CH4 M1 X-Y status Presented by S.Movchan.

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13-Oct-14

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  1. Dubna modules assemblystatus (December 12 2013) • Straw manufacture: • CH4 M2X-Y - 900 straws are ready • spare - about 300 pc • CH2 M2 X-Ystatus • CH4 M1 U-Vstatus • CH4 M1 X-Ystatus • Presented by S.Movchan 13-Oct-14 S.Movchan Straw manufacturing and QC 1

  2. Straws Last straw serial number is #7032 900straws for CH4 M2 X-Y(4-th Dubna module) # (5751-6700) About 300 pс-spare: # (6701 - 7032 ) 13-Oct-14 S.Movchan Straw manufacturing and QC 2

  3. CH2 M2 X-Ystatus 13-Oct-14 S.Movchan Straw manufacturing and QC 3

  4. CH2 M2 X-Y installed for assembly (July 16 2013) 13-Oct-14 Microworld physics, Gomel, 2013 4

  5. CH2 M2 X-Y status: all straws glued (October 14 2013) 8 layers glued 13-Oct-14 S.Movchan Straw manufacturing and QC 5

  6. CH2 M2 X-Y status: wiring finished (December 6 2013) 13-Oct-14 S.Movchan Straw manufacturing and QC 6

  7. CH2 M2 X-Y: WEB reparation 13-Oct-14 S.Movchan Straw manufacturing and QC 7

  8. Covers installation 13-Oct-14 S.Movchan Straw manufacturing and QC 8

  9. Cells gas leak test by differential method Gas leak: Cells (1+2) Cells (3+4) K=1 K= Cells (3+4)/ Cells (1+2) 13-Oct-14 S.Movchan Straw manufacturing and QC 9

  10. CH2 M2 X-Y: plans “Dry” room for HV test • Tests: • cells gas leak test – in progress • HV test – in preparation • Final gas leak test – February 2014 • Delivery to CERN – March -April 2014 13-Oct-14 S.Movchan Straw manufacturing and QC 10

  11. CH4 M1 U-Vstatus 13-Oct-14 S.Movchan Straw manufacturing and QC 11

  12. CH4 M1 U-V: vacuum test (October 2013) Leak < 0.1 cm3/min (requirement L<=0.8 cm3/min) 13-Oct-14 S.Movchan Straw manufacturing and QC 12

  13. CH4 M1 U-V installed for assembly (December 9 2013) 13-Oct-14 S.Movchan Straw manufacturing and QC 13

  14. CH4 M1 U-V: straw gluing (January 27 2014) V: 4 layers glued (January 24) U: 3.5 layers glued (February 10) 13-Oct-14 S.Movchan Straw manufacturing and QC 14

  15. CH4 M1 U-V: plans • Finish of straw gluing – February 14 • V-coor. first gas leak test – February 12 • U-coor. first gas leak test – February 22 • Wiring – end of February • Gas manifold installation - March 10 • Final gas leak test – March 25 • Delivery to CERN – March-April 2014 13-Oct-14 S.Movchan Straw manufacturing and QC 15

  16. CH4 M2 X-Y 13-Oct-14 S.Movchan Straw manufacturing and QC 16

  17. CH4 M2 X-Y: vacuum test preparation 13-Oct-14 S.Movchan Straw manufacturing and QC 17

  18. Test result #7 (January 27 2014): zoom Module P (mBar) dP= 0.16 mBar, dT=4000 min Time scale: 3050-4050 min Module T (degree) dT= -1.2 degree Atm P (mBar) dP= -1.2mBar 13-Oct-14 S.Movchan Straw manufacturing and QC 18

  19. Test result #7,CH4 M2 X-Y vacuum leak estimation: Leak estimation for final time interval dT=(3050-4050) min: Time: dt = 4000 min (time scale: 3050 -> 4050 min) Room temperature: dT= - 0.25 degree (24.85 -> 24.6 degree) Atmospheric pressure: dP= -1.2 mBar (1018.8 -> 1017.6 mBar) Vacuum pressure drop: dP= 0.16 mBar (0 -> 0.16 mBar) Vacuum pressure drop dP =0.16 mBar and dT=4000 min Volume V=2.2x10**6 cm3 Gas leak estimation: L = dP/P * V/dT <= 0.09 cm3/min (Requirement: L ≤ 0.8 cm3/min) OK! 13-Oct-14 S.Movchan Straw manufacturing and QC 19

  20. CH4 M2 X-Y: schedule • Module frame gluing (January 2014) - done • Vacuum test (February 2014) - done • Straw gluing – March-April 2014 • Wiring – May 2014 • HV test – May 2014 • Gas manifold installation – May-June 2014 • Final gas leak test – June 2014 • Delivery to CERN – end of June 2014 13-Oct-14 S.Movchan Straw manufacturing and QC 20

  21. Conclusion • Straw manufacture: • 900 straws are for CH4 M2 X-Y • about 300 straws - spare • CH2 M1 U-V: • delivery to CERN – November 2 2013 • HV test and gas leak test at CERN - done • CH2 M2 X-Y: • final tests (HV, gas leak) – February-March 2014 • delivery to CERN – March-April 2014 • CH4 M1 U-V: • - wiring – end of February 2014 • - final gas leak test – March 25 2014 • - delivery to CERN – March-April 2014 • CH4 M2 X-Y: • - straw gluing – March-April 2014 • - wiring - May 2014 • - final tests (HV, gas leak) – May-June 2014 • - delivery to CERN – end of June 2014 13-Oct-14 S.Movchan Straw manufacturing and QC

  22. 13-Oct-14 S.Movchan Straw manufacturing and QC 22

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