IBIC2019 - List of Authors (Liu, Y.)

Paper	Title	Page
WEPP033	Position Based Phase Scan	605
	N. Milas, M. Eshraqi, Y. Levinsen, R. Miyamoto, D.C. Plostinar ESS, Lund, Sweden Y. Liu KEK/JAEA, Ibaraki-Ken, Japan
	Knowledge of the longitudinal beam parameters is important for understanding beam dynamics in linacs. As well as with transverse optics, the settings for the RF cavities have to be established and phase and amplitude seen by the beam must be determined in order to guarantee a stable motion in the longitudinal plane. This work presents an extension of the most widely used phase scan method, relying on time-of-flight, using only transverse positions measured at a few selected BPMs downstream of the cavity being scanned. In principle, the method can be applied both to normal conducting and SC. The suggested method is fast and relatively simple and is capable to provide the values for the cavity transverse misalignment (offsets and tilts) at the same time. It can be a useful part of the initial longitudinal beam tuning.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-WEPP033
About •	paper received ※ 04 September 2019 paper accepted ※ 10 September 2019 issue date ※ 10 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Position Based Phase Scan

605

N. Milas, M. Eshraqi, Y. Levinsen, R. Miyamoto, D.C. Plostinar
ESS, Lund, Sweden
Y. Liu
KEK/JAEA, Ibaraki-Ken, Japan

Knowledge of the longitudinal beam parameters is important for understanding beam dynamics in linacs. As well as with transverse optics, the settings for the RF cavities have to be established and phase and amplitude seen by the beam must be determined in order to guarantee a stable motion in the longitudinal plane. This work presents an extension of the most widely used phase scan method, relying on time-of-flight, using only transverse positions measured at a few selected BPMs downstream of the cavity being scanned. In principle, the method can be applied both to normal conducting and SC. The suggested method is fast and relatively simple and is capable to provide the values for the cavity transverse misalignment (offsets and tilts) at the same time. It can be a useful part of the initial longitudinal beam tuning.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-WEPP033

About •

paper received ※ 04 September 2019 paper accepted ※ 10 September 2019 issue date ※ 10 November 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)