SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Field quality in correctors: Episode III

illana-christensen avatar
illana-christensen
36 diapositives · 504 Views · Oct 29, 2014

This report summarizes the findings from Episode III of warm magnetic measurements for lattice correctors. Analyzing 289 modules of MOs, 441 modules of MSMs, 88 modules of MQTs, and 397 modules of MCBMs, we focus on the dispersion of transfer functions, phase alignment, and harmonics. While most measured values meet specifications, some issues with modulus at low current and low harmonics have been addressed through manufacturing process adjustments. Overall, the alignment has improved, and we are confident in the status of production modules.

#field quality in correctors: episode iii #field quality in correctors: episode iii ppt #powerpoint #presentation
Field quality in correctors: Episode III - slide 1
01 / 36Field quality in correctors: Episode III
1 / 17

Télécharger la présentation

Field quality in correctors: Episode III
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. MEL Field quality in correctors: Episode III Update on warm magnetic measurements of lattice correctors V. Remondino FQWG 3/5 2005, V. Remondino AT/MEL

  2. MEL Introduction • As only lattice correctors are concerned, we do not consider MCDOs & MCSs (~3700 magnets) • Reminder: we measure modules and not the final correctors • Only data stored in MTF (Oracle WMM table ) are taken into account (no preliminary data from modules approval) • We concentrate mainly on the dispersion of the Transfer Functions for the SSS correctors

  3. MOs: Transfer Function 289 modules analyzed

  4. MOs: Transfer Function

  5. MOs: Transfer Function  = 0.27 %

  6. MOs: Histograms (phase & alignment)

  7. MOs: Normal Harmonics

  8. MOs: B1 Modules in Fast-Track included

  9. MOs: Normal Harmonics MOs:

  10. MOs: Skew Harmonics

  11. MOs: Skew Harmonics

  12. MOs: Summary

  13. MSMs: Transfer Function 441 modules analyzed

  14. MSMs: Transfer Function 441 modules analyzed  = 0.33 %

  15. MSMs: Histograms (phase & alignment)

  16. MSMs: Normal Harmonics

  17. MSMs: Normal Harmonics

  18. MSMs: Skew Harmonics

  19. MSMs: Skew Harmonics

  20. MSMs: Summary

  21. MQTs: Transfer Function 88 modules analyzed

  22. MQTs: Transfer Function  = 0.23 %

  23. MQTs: Histograms (phase & alignment)

  24. MQTs: Normal Harmonics

  25. MQTs: Normal Harmonics

  26. MQTs: Skew Harmonics

  27. MQTs: Summary

  28. MCBMs: Transfer function 397 correctors analyzed

  29. MCBMs: Transfer function 397 modules analyzed  = 0.33 %

  30. MCBMs: Normal harmonics

  31. MCBMs: Skew harmonics

  32. MCBMs: Summary

  33. Conclusions - modulus • The measured systematic of the modulus is often out of the limits scaled at low current (but this is not a problem) • The measured sigma on the modulus is < 0.33 % for all correctors: this satisfies the specifications, with the exception of MCBMs, for which a  of 0.02 % was specified

  34. Conclusions - Phase • The phase is not a issue as it can be easily corrected modifying the ‘keys’

  35. Conclusions : Alignment • During the construction, modules are aligned with particular care. Measurements show that we are within tolerances. • At the beginning of the production, MQTs were out of specs. Now the situation is under control.

  36. Conclusions: Harmonics • Recently, we observed a jump in the trend of the low harmonics (b1, b2, a1, a2 too high) in MOs. • The coil manufacturing process has been modified in order to solve this problem. Measurements on last modules show that harmonics are back to usual values. • Part of this ‘bad’ production has been rejected or is in stand-by. However, we decided to accept most of the modules after discussion with A. Lombardi.