Coherent Betatron Oscillations in a Storage Ring at Injection
https://doi.org/10.25205/2541-9447-2024-19-2-15-22
Abstract
A single-turn (and single-bunch) injection often operates with an injection portion of high intensity, comparable with that of the circulating bunch. Collective effects due to transverse impedance provide interaction between groups of particles. This interaction may set serious limitations on the injection efficiency.
We analyze the conditions of coherency of the betatron oscillations following the injection, while the beam is subject to decoherence resulting from the machine lattice nonlinearities. The theoretical results are supported by numerical tracking. The conclusions are compared with experimental data on dipole oscillations histories following the VEPP-2000 injection.
About the Authors
S. P. Sherstyuk
Budker Institute of Nuclear Physics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Sergey P. Sherstyuk, Master Student
Novosibirsk
E. A. Perevedentsev
Budker Institute of Nuclear Physics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Evgeny A. Perevedentsev, Leading Researcher, Associate Professor
Novosibirsk
M. V. Timoshenko
Budker Institute of Nuclear Physics SB RAS
Russian Federation
Russian Federation
Maksim V. Timoshenko, Junior Researcher
Novosibirsk
References
1. Vinokurov N. A., Kulipanov N. G., Perevedentsev E. A. “Negative mass effect” for nonlinear oscillating system and its influence on stability of coherent betatron oscillations, Preprint of INP 76–88, 1976.
Review
For citations:
Sherstyuk S.P., Perevedentsev E.A., Timoshenko M.V. Coherent Betatron Oscillations in a Storage Ring at Injection. SIBERIAN JOURNAL OF PHYSICS. 2024;19(2):15-22. (In Russ.) https://doi.org/10.25205/2541-9447-2024-19-2-15-22
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