1. Successful Beam-Beam Compensation with TEL1 Vsevolod Kamerdzhiev for Beam-Beam Compensation team

2. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20072 First BoS beam study with TEL1 #5352 TEL1 on P13

3. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20073 First BoS beam study with TEL1 #5352

4. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20074 TEL1 on/off, #5352 T1 T2 status P1 P13 P25 P14 19.34 19.45 1 15.1 24.3 27.4 15.0 19.45 19.55 0 7.5 18.8 29.4 17.7 19.56 20.06 1 20.6 30.3 31.8 20.6 20.06 20.16 0 22.2 23.0 32.6 23.2 20.18 20.28 1 24.8 38.1 35.1 27.2 20.29 20.39 0 26.3 26.3 36.2 28.8 20.40 20.50 1 29.4 44.3 39.7 33.5 20.51 21.01 0 35.9 31.4 47.0 36.6 21.03 21.13 1 29.3 44.8 38.3 35.0 21.15 21.25 0 34.9 33.1 43.2 40.3 21.26 21.36 1 34.3 47.5 44.8 39.4

5. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20075 BoS #5353

6. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20076 TEL1 horizontal tune shift

7. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20077 TEL1 horizontal tune shift

8. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20078 TEL1 horizontal tune shift problem with the baseline

9. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 20079 Bunch length, #5359

10. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200710 Bunch length, #5359

11. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200711 P1 tau, #5359

12. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200712 P13 tau, #5359

13. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200713 P25 tau, #5359

14. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200714 Tau improvements, #5359 P1 ~25%, ~40% P13~20%, ~40% P25~30%

15. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200715 Horizontal scan, #5467

16. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200716 Tunes, #5467

17. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200717 Study plan BBCompensation during scraping Both TELs simultaneously on one bunch TEL1 tune shift vs TEV tune change Increase e-beam size Study the effects on emittance growth Bunch length vs lifetime improvement Losses and Schottky power vs e-noise

18. V. Kamerdzhiev for BBC teamAPD meeting, May 30, 200718 Summary We used TEL1 for beam-beam compensation of a single proton bunch. Repeatable lifetime improvement in the range of 15-65% has been demonstrated Position scans suggest no harmful effects of horizontally displaced e-beam on protons (preliminary) Based on the latest data we decided NOT to upgrade TEL1 magnetic system