| Paper |
Title |
Page |
| WEPB04 |
The VEPP-4M Dynamic Aperture Determination Through the Precise Measurement of the Beam Lifetime
|
238 |
| |
- A. N. Zhuravlev, S. I. Gluhov, V. F. Gurko, A. D. Khilchenko, V. A. Kiselev, A. N. Kvashnin, E. B. Levichev, O. I. Meshkov, P. A. Piminov, V. V. Smaluk, P. V. Zubarev
BINP SB RAS, Novosibirsk
|
|
| |
To determine experimentally the particle stable area in the electron-positron collider VEPP-4M we measure the beam life time with high accuracy as a function of moving aperture. The measurement is performed by a photodiode installed in the collider diagnostic beam line. The experimental set up and the measurement results are described. Comparison with the tracking simulation is presented.
|
|
| WEPC26 |
Transverse Bunch-by-Bunch Feedback for the VEPP-4M Electron-Positron Collider
|
367 |
| |
- V. P. Cherepanov, E. N. Dementyev, E. B. Levichev, A. S. Medvedko, V. V. Smaluk, D. P. Sukhanov
BINP SB RAS, Novosibirsk
|
|
| |
Transverse mode coupling instability (TMCI or fast head-tail) is the principal beam current limitation of the VEPP-4M electron-positron collider. For the high-energy physics experiments at the 5.5 GeV energy, the VEPP-4M bunch current should exceed much the TMCI threshold. To suppress transverse beam instabilities, a broadband bunch-by-bunch digital feedback system is developed. The feedback concept is described, the system layout and first beam measurements are presented.
|
|