| EuCARD Conference Paper | |
| Report number | EuCARD-CON-2011-025 |
| Date(s), location | |
| Imprint | 2011 |
| Title | Beam-Based HOM Study in Third Harmonic SC Cavities for Beam Alignment at FLASH |
| Author(s) | Zhang, P (Manchester U. ; DESY ; Cockcroft Inst. Accel. Sci. Tech) ; Baboi, N (DESY) ; Ecklebe, H (U. Rostock) ; Flisgen, T (U. Rostock) ; Glock, H W (U. Rostock) ; Jones, R M (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech) ; Lorbeer, B (DESY) ; Shinton, I R R (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech) |
| WP | 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs |
| Task | 10.5: HOM Distribution |
| Abstract | An electron beam entering an accelerator cavity excites higher order modes (HOM). These are radiated to HOM couplers and subsequently damped. They can also be used to facilitate beam position monitoring. The modes excited by off-axis beams are the focus of this study. Results are presented on the first analysis of HOM dependency on the beam position for the third harmonic cavities at FLASH. The analysis is based on the beampipe and cavity dipole modes. Various analysis methods are used and compared to satisfy the needs emerging from the characteristics of those modes. The electric center of each mode is observed by looking for the minima of the HOM signals of different beam positions. A single electron bunch per RF pulse is used. |
| Published in | Conf. Proc. C11-05-16.4 (2011) pp.MOPD17 |
| Presented at | 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, Hamburg, Germany, 16 - 18 May 2011, pp.77-79 |
Email contact: [email protected]
Запись создана 2011-12-20, последняя модификация 2018-02-12
