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Injection Studies: Losses at the Septum

Injection Studies: Losses at the Septum. ABT. Injection problem B1. The problem: loss pattern change at the MSI . B.Goddard et al. Injection area investigations at the MSI .

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Injection Studies: Losses at the Septum

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  1. Injection Studies: Losses at the Septum ABT

  2. Injection problem B1 The problem: loss pattern change at the MSI B.Goddard et al.

  3. Injection area investigations at the MSI • There is a clear problem with the RF fingers at the transition. Not clear how did it get worse suddenly. Need to find a different injection trajectory, for the time being while preparing an intervention for the technical stop or the Christmas stop Problem • New setting-up to be done this afternoon after theVdM scan JM. Dalin G. Arduini 13/10/2010

  4. Temporary Solution: Bump around Bottleneck Horizontal Bottleneck LHC 1 unit bump Vertical Bottleneck LHC

  5. Horizontal & Vertical Scan monitoring losses at the MSIA, MSIB, MQ5, TCTH.4L2 and TCLIB, with pilot bunches High losses High losses old old • 4 mm Vertical • +1 mm Horizontal new new No losses No losses

  6. Vertical Orbit Matching in the LHC

  7. Horizontal Orbit Matching in the LHC

  8. TCDI Collimators Reset wrt New Trajectory 24 bunches

  9. 8 Bunches Injection MSIB MSIA

  10. 24 Bunches Injection MSIB MSIA

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