| Title |
Measurement Results of the Impedance of the RF-cavity at the RCS in J-PARC |
| Authors |
- Y. Shobuda, H. Harada, H. Hotchipresenter
JAEA/J-PARC, Tokai-Mura, Naka-Gun, Ibaraki-Ken, Japan
|
| Abstract |
The kicker impedance dominates at the RCS in J-PARC. Recently, we observe beam instabilities, which are not explained by the kicker. As a candidate causing the beam instability, the impedance of the RF-cavity is measured. The longitudinal impedance is measured by stretching a single-wire inside the cavity. On the other hand, the measurement of the transverse impedance is done by horizontally shifting the single-wire, due to the accuracy problem. The measured impedance is too low to explain the beam instability.
|
| Paper |
download MOPWA058.PDF [0.595 MB / 3 pages] |
| Export |
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| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Monday Posters (Washington) |
| Date |
04-May-15 16:00–18:00 |
| Main Classification |
5: Beam Dynamics and EM Fields |
| Sub Classification |
D04 - Beam Coupling Impedance - Theory, Simulations, Measurements, Code Developments |
| Keywords |
impedance, cavity, injection, kicker, proton |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
