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CDF Aperture

CDF Aperture. Dean Still 9-19-2008. Summary of Aperture at CDF. How we have moved in the squeeze. New Path. Lbseq 2-13. Old Path. LBSEQ 15-24. Lbseq 14. No Corrector Maybe use C:VA48. LBSEQ 25. Interesting Things. The file 262 is on top of the aperture

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CDF Aperture

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  1. CDF Aperture Dean Still 9-19-2008

  2. Summary of Aperture at CDF

  3. How we have moved in the squeeze New Path Lbseq 2-13 Old Path LBSEQ 15-24 Lbseq 14 No Corrector Maybe use C:VA48 LBSEQ 25

  4. Interesting Things The file 262 is on top of the aperture Results in big loss after smooth Moved outside Moved outside

  5. Losses at CDF and D0 LMB1SD This is related to lbseq 14 Sigma separation problem LMC4SD Where moved away from aperture

  6. Radial distance from Aperture After moving Before moving

  7. Summary • The restriction at CDF is real – moving away from it reduces losses. • We have to move Hor outside because no hor corrector to move inside. • We might be able to move down if use C:VA48? • We only a 2D plot of one location?? • BPM ref file 262 has been updated to take into account movement of orbit around restriction. • This takes much work to stay on top of! • Can the beam pipe be opened during the Oct 6 shutdown?

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