Analysis of the longitudinal low-order mode beam dynamics in PEP-II rings at high current beams

被引：0

作者：

Mastorides, T. ^{[1
]}

Rivetta, C. ^{[1
]}

Fox, J. D. ^{[1
]}

Teytelman, D. ^{[1
]}

Van Winkle, D. ^{[1
]}

机构：

[1] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

来源：

2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11 | 2007年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

PEP-II plans to achieve the final goal in luminosity will require an increase of the beam currents to 4A for LER and 2.2A for HER. These magnitudes are challenging in part because they will push the longitudinal low-order mode (LOM) beam stability and the station stability to the limit. To analyze the behavior of both rings at high currents and to understand the limits in the longitudinal feedback systems, a simulation tool has been developed at SLAC. This tool is based on a reduced model of the longitudinal LOM dynamics of the beam interacting with the effective impedance presented by the RF stations. Simulations and measurements of the longitudinal beam behavior in both rings have been performed to understand the ultimate limits of the systems. These studies have defined the impact of control loop parameters in the longitudinal beam dynamics, identified the limiting behavior of RF devices affecting the optimal performance of the RF stations and quantified the behavior of the longitudinal LOM beam dynamics. Results of sensitivity to parameter variations in the beam dynamics and limits in the maximum current that LER/HER can achieve based on the longitudinal beam stability are reported in this paper.

引用

页码：1145 / 1147

页数：3

共 4 条

[1] Analysis of the wake field effects in the PEP-II storage rings with extremely high currents
Novokhatski, A.
Seeman, J.
Sullivan, M.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2014, 735 : 349 - 365
[2] Beam dynamics during longitudinal bunch compression of high-current heavy-ion beams
Kikuchi, T.
Horioka, K.
Nakajima, M.
Kawata, S.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 577 (1-2): : 103 - 109
[3] MANIFOLD LEARNING FOR ANALYSIS OF LOW-ORDER NONLINEAR DYNAMICS IN HIGH-DIMENSIONAL ELECTROCARDIOGRAPHIC SIGNALS
Erem, B.
Stovicek, P.
Brooks, D. H.
2012 9TH IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI), 2012, : 844 - 847
[4] Analysis of longitudinal beam dynamics behavior and rf system operative limits at high-beam currents in storage rings
Mastorides, T.
Rivetta, C.
Fox, J. D.
Van Winkle, D.
Teytelman, D.
PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2008, 11 (06):

← 1 →