| Title |
Novel Metallic Structures for Wakefield Acceleration |
| Authors |
- X.Y. Lu, M.A. Shapiro, R.J. Temkin
MIT/PSFC, Cambridge, Massachusetts, USA
|
| Abstract |
Three novel ideas for wakefield acceleration (WFA) of electrons with metallic periodic subwavelength structures will be presented. The first idea is a deep corrugation structure for collinear WFA. A design for the Argonne Wakefield Accelerator is shown. An analytical model is developed and it agrees with the CST wakefield solver. A scaling study has been performed, and ways to increase the gradient will be discussed. The deep corrugation structure can generate a higher gradient than a dielectric tube with the same beam aperture when excited by the same bunch. The second idea is an elliptical structure for two-beam acceleration (TBA). The unit cell is an elliptical cavity, and the drive beam hole and the witness beam hole are located around the two focal points. The TBA process has been calculated and will be presented. The third idea is a metamaterial ‘wagon wheel' structure for a power extractor design. The fundamental mode is a TM mode with a negative group velocity. A power extractor at 11.7 GHz based on the structure can reach a GW power level when a train of 40 nC bunches with 1.3 GHz rep rate are sent in.
|
| Funding |
US DOE, Office of High Energy Physics |
| Paper |
download WEPOA33.PDF [2.097 MB / 3 pages] |
| Export |
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| Conference |
NAPAC2016, Chicago, IL, USA |
| Series |
North American Particle Accelerator Conference (3rd) |
| Proceedings |
Link to full NAPAC2016 Proccedings |
| Session |
Poster Session (MC3 & MC4) |
| Date |
12-Oct-16 08:30–12:30 |
| Main Classification |
3: Advanced Acceleration Techniques and Alternative Particle Sources |
| Keywords |
ion, wakefield, cavity, acceleration, electron |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Volker RW Schaa (GSI, Darmstadt, Germany); Maria Power (ANL, Argonne, IL, USA); Vladimir Shiltsev (FNAL, Batavia, IL, USA); Marion White (ANL, Argonne, IL, USA) |
| ISBN |
978-3-95450-180-9 |
| Published |
January 2017 |
| Copyright |
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