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DOSE TO WARM MAGNETS

DOSE TO WARM MAGNETS. E. Skordis & F. Cerutti loss input by: E. Quaranta , R. Bruce and S. Redaelli Protection screen design with: P. Fessia , L. Favre , P. A. Thonet. IR3: THE TCAPD ROLE (@7 TeV ). IR3 Geometry and Sixtrack Lossmap profile. MQWA.CE5L3. MBW.B6L3. MBW.A6L3.

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DOSE TO WARM MAGNETS

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  1. DOSE TO WARM MAGNETS E. Skordis& F. Cerutti loss input by: E. Quaranta, R. Bruce and S. Redaelli Protection screen design with: P. Fessia , L. Favre,P. A. Thonet E. Skordis

  2. IR3:THE TCAPD ROLE(@7 TeV) E. Skordis

  3. IR3 Geometry and SixtrackLossmap profile MQWA.CE5L3 MBW.B6L3 MBW.A6L3 MQWA.E5L3 MBW.C6L3 Beam 1 TCSG.5L3 TCAPA.6L3 TCP.6L3 TCAPD.6L3 Average interaction longitudinal position: 14.9 cm Average interaction depth: 47 μm Counts All particles are impacting the inner jaw. Z (m) E. Skordis

  4. MBW Peak Dose profile [I] MQWA.CE5L3 MBW.B6L3 MBW.A6L3 MQWA.E5L3 MBW.C6L3 Beam 1 TCSG.5L3 TCAPA.6L3 TCP.6L3 TCAPD.6L3 Beam 1 Beam 1 MBW.B6L3 MBW.A6L3 MBW.C6L3 obviously the TCAPD plays no role E. Skordis

  5. MBW Peak Dose profile [II] MQWA.CE5L3 MBW.B6L3 MBW.A6L3 MQWA.E5L3 MBW.C6L3 Beam 1 TCSG.5L3 TCAPA.6L3 TCAPD.6L3 Beam 1 Beam 2 @ 6.5 TeV MBW.B6R7 MBW.C6L3 (per proton lost) E. Skordis

  6. MQWA.E5L3 Peak Dose profile Beam 1 the TCAPD halves the dose E. Skordis

  7. MQWA.E5L3 Peak Dose profile Beam 1 MQWA.E5R7 Beam 2 @ 6.5 TeV (per proton lost) E. Skordis

  8. MQWA.D5L3 Peak Dose profile Beam 1 E. Skordis

  9. MQWA.C5L3 Peak Dose profile Beam 1 the most impacted one! following the TCSG E. Skordis

  10. MQWA.5L3 Peak Dose profile Beam 1 E. Skordis

  11. MQWA.B5L3 Peak Dose profile Beam 1 E. Skordis

  12. MQWA.A5L3 Peak Dose profile Beam 1 E. Skordis

  13. MQWA.E4L3 Peak Dose profile Beam 1 E. Skordis

  14. Conclusions The TCAPD halves the peak dose in the MQW directly protected (MQWA.E5L3) However for the most impacted one (MQWA.C5L3), following the TCSG, the reduction is limited to ~ 30% The effectiveness of a dedicated shielding, to be embedded in the magnet, is under study (See next part) E. Skordis

  15. IR7:Possible protection screen effect(@6.5 TeV) E. Skordis

  16. MBWA - MBWB Peak Dose profile Beam 2 MQWA.D5R7 MQWA.E5R7 MBW.A MBW.B TCAP E. Skordis

  17. MBWA - MBWB Peak Dose profile Beam 2 Beam 2 MBW.A6R7 MBW.B6R7 Beam 2 Beam 2 MBW.B6R7 With Flanges MBW.A6R7 with Flanges Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  18. MBWA - MBWB Peak Dose profile Beam 2 Beam 2 MBW.B6R7 Flanges + Protection MBW.A6R7 Flanges + Protection Beam 2 Beam 2 MBW.B6R7 With Flanges MBW.A6R7 with Flanges Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  19. MBWB Dose 2d cross section at maximum No protection Dose (MGy) Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  20. MBWB Dose 2d cross section at maximum With protection Dose (MGy) Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  21. MQWA.E5R7 Peak Dose Profile With Flanges Old Model Beam 2 Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  22. MQWA.E5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  23. MQWA.D5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  24. MQWA.C5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  25. MQWA. 5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  26. MQWA.B5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  27. MQWA.A5R7 Peak Dose Profile Beam 2 Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  28. MQWA.E4R7 Peak Dose Profile Protection Is needed due to comparable Peak dose with MQWA.E5R7 Beam 2 No protection was added to this model Normalization: 1.15 1016 p (50 fb-1 ) E. Skordis

  29. MQWA.E5R7Dose 2d cross section E. Skordis

  30. MQWA.E5R7Dose 2d cross section E. Skordis

  31. MQWA.E5R7Dose 2d cross section E. Skordis

  32. MQWA.E Energy Deposition on varius elements 5770 1780 570 1290 290 With Protection 110 2030 2130 50 60 50 210 640 4550 2020 1670 110 90 70 1950 500 2230 1250 370 720 5670 2310 Values are in pJoule/proton lost in the collimators E. Skordis

  33. Temperature Increase in protective Elements E. Skordis

  34. Conclusions The protection screen for the MBWs provides a peak reduction of a factor of 3 For the MQWs the effect is again a reduction of a factor of 3, however, increasing the radius of the front cylindrical screen and increasing the length of the inner protection could improve performance Design to be finalised (Cabling) E. Skordis

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