| Title |
Observation of Wakefield Effects with Wideband Feedthrough-BPM at the Positron Capture Section of the SuperKEKB Injector Linac |
| Authors |
- M.A. Rehman, T. Suwada
KEK, Ibaraki, Japan
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| Abstract |
At the SuperKEKB injector linac, positrons are generated by striking electron beam at tungsten target. The secondary electrons are also produced during positron creation and accelerated in the positron capture section. A new wideband feedthrough-beam position monitor (BPM) system was developed for synchronous detection of secondary produced e⁻ and e⁺ beams with temporal separation of about 180 ps. When e⁺/e⁻ bunches pass through the accelerating structure or vacuum duct of different radius, they generate wakefields. These wakefields can be directly observed with the feedthrough-BPM. A simulation study has also been carried to validate the observed wakefield effects with the feedthrough-BPM. The effects of wakefields on beam parameters will be reported in this paper.
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| Paper |
download MOPP10.PDF [0.763 MB / 4 pages] |
| Poster |
download MOPP10_POSTER.PDF [1.316 MB] |
| Export |
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| Conference |
IBIC2021 |
| Series |
International Beam Instrumentation Conference (10th) |
| Location |
Pohang, Rep. of Korea |
| Date |
24-28 May 2021 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Changbum Kim (PAL, Pohang, Rep. of Korea); Volker R. W. Schaa (GSI, Darmstadt, Germany); Dong-Eon Kim (PAL, Pohang, Rep. of Korea); Jaeyu Lee (PAL, Pohang, Rep. of Korea) |
| Online ISBN |
978-3-95450-230-1 |
| Online ISSN |
2673-5350 |
| Received |
06 September 2021 |
| Accepted |
15 September 2021 |
| Issue Date |
10 October 2021 |
| DOI |
doi:10.18429/JACoW-IBIC2021-MOPP10 |
| Pages |
52-55 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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