Journal Article

PUBDB-2023-03593

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Beam-Based Commissioning of a Novel X-Band Transverse Deflection Structure with Variable Polarization

González Caminal, P. (Corresponding author)Extern*DESY* ; Christie, F.DESY* ; D'Arcy, R.Extern*DESY* ; Jaster-Merz, S. M.DESY* ; Assmann, R.Extern*DESY* ; Burkart, F.DESY* ; Conrad, B.DESY* ; Dinter, H.DESY* ; Föse, M.DESY* ; Herrmann, J.DESY* ; Hoffmann, M.DESY* ; Hüning, M.DESY* ; Jonas, R.DESY* ; Krebs, O.DESY* ; Lederer, S.DESY* ; Marchetti, B.XFEL.EU*DESY* ; Marx, D.DESY* ; Mueller, J.DESY* ; Osterhoff, J.Extern*DESY* ; Peperkorn, I.DESY* ; Reukauff, M.Extern*DESY* ; Schlarb, H.DESY* ; Schreiber, S.DESY* ; Tews, G.DESY* ; Vinatier, T.DESY* ; Vogt, M.DESY* ; de Z. Wagner, A.DESY* ; Wesch, S.DESY* ; Craievich, P. ; Bopp, M. ; Braun, H.-H. ; Citterio, A. ; Fortunati, R. ; Ganter, R. ; Kleeb, T. ; Marcellini, F. ; Pedrozzi, M. ; Prat, E. ; Reiche, S. ; Rolli, K. ; Sieber, R. ; Grudiev, A. ; Millar, W. L. ; Catalan-Lasheras, N. ; McMonagle, G. ; Pitman, S. ; del Pozo Romano, V. ; Szypula, K. T. ; Wuensch, W.

2024
American Physical Society College Park, MD

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Please use a persistent id in citations: doi:10.1103/PhysRevAccelBeams.27.032801  doi:10.3204/PUBDB-2023-03593

Abstract: Longitudinal electron-beam diagnostics play a critical role in the operation and control of X-ray free-electron lasers (XFELs), which rely on parameters such as the current profile, the longitudinal phase space, or the slice emittance of the particle distribution. On the one hand, the femtosecond-scale electron bunches produced at these facilities impose stringent requirements on the resolution achievable with the diagnostics. On the other, research and development of novel accelerator technologies as beam-driven plasma-wakefield accelerators (PWFA) demand unprecedented capabilities to resolve the centroid offsets in the full transverse plane along the longitudinal bunch coordinate. We present the beam-based commissioning of an advanced X-band transverse-deflection RF structure (TDS) system with the new feature of providing variable polarization of the deflecting force: the PolariX-TDS. By means of a comprehensive campaign of measurements conducted with the prototype, key parameters of the RF performance of the system are validated and a phase-space characterisation of an electron bunch is accomplished with a time resolution of 3.3 fs. Furthermore, an analysis of second-order effects induced on the bunch from its passage through the PolariX-TDS is presented.

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Contributing Institute(s):

1. FTX Fachgruppe AST (HH_FH_FTX_AS)
2. Plasma Accelerators (MPA)
3. Maschinen Koordination FLASH (MFL)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)

Experiment(s):

1. FLASHForward
2. Facility (machine) FLASH

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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