| Title |
Numerical Calculation and Experiment of Ion Related Phenomenon in SPring-8 Storage Ring |
| Authors |
- A. Mochihashi, M. Takao
JASRI/SPring-8, Hyogo-ken, Japan
|
| Abstract |
In the SPring-8 storage ring, various kinds of bunch filling pattern are available. Under some bunch filling patterns, residual gas ions created by scattering process between high energy electrons and residual gas molecules can be trapped stably around the electron beam and disturb the original motion of the beam. We have considered the stability of the electron beam due to the ion related phenomenon under several bunch filling patterns by computer simulation. In the simulation, we have modeled the electron bunch as single particle and the residual gas ions as macroparticles. The number of the trapped ions, size of the ion cloud and change in betatron oscillation amplitude of the beam under several filling pattern conditions will be discussed. We have also performed experiments for stability of the beam under equally spaced bunch filling patterns which give severe condition for the ion related instability. The numerical calculations and the experimental results will be discussed in the presentation.
|
| Paper |
download TUPRI050.PDF [0.868 MB / 3 pages] |
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| Conference |
IPAC2014, Dresden, Germany |
| Series |
International Particle Accelerator Conference (5th) |
| Proceedings |
Link to full IPAC2014 Proccedings |
| Session |
Poster Session, Ribery Area |
| Date |
17-Jun-14 16:00–18:00 |
| Main Classification |
05 Beam Dynamics and Electromagnetic Fields |
| Sub Classification |
D05 Instabilities - Processes, Impedances, Countermeasures |
| Keywords |
ion, electron, simulation, storage-ring, experiment |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Gianluigi Arduini (CERN, Geneva, Switzerland); Peter Michel (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-132-8 |
| Published |
July 2014 |
| Copyright |
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