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Beam-based commissioning of a novel X-band transverse deflection structure with variable polarization
/ González Caminal, P (DESY) ; Christie, F (DESY) ; D'Arcy, R (DESY) ; Jaster-Merz, S M (DESY) ; Assmann, R (DESY) ; Burkart, F (DESY) ; Conrad, B (DESY) ; Dinter, H (DESY) ; Foese, M (DESY) ; Herrmann, J (DESY) et al.
Longitudinal electron-beam diagnostics play a critical role in the operation and control of x-ray free-electron lasers, 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. [...]
2024 - 19 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 032801
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Frequency and spatially chirped free-electron laser pulses
/ Reiche, S (PSI, Villigen) ; Bacellar, C (PSI, Villigen) ; Bougiatioti, P (PSI, Villigen) ; Cirelli, C (PSI, Villigen) ; Dijkstal, P (PSI, Villigen ; DESY) ; Ferrari, E (PSI, Villigen ; DESY) ; Juranic, P (PSI, Villigen) ; Knopp, G ; Malyzhenkov, 2A (PSI, Villigen ; CERN) ; Milne, C (PSI, Villigen ; European XFEL, Hamburg) et al.
We have produced hard x-ray free-electron laser (FEL) pulses, which are chirped both in photon energy and in
spatial position. The experiments have been carried out at the hard x-ray beamline Aramis at SwissFEL, located
at the Paul Scherrer Institute in Switzerland [...]
2023 - 7 p.
- Published in : Phys. Rev. Res. 5 (2023) L022009
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Coherent sub-femtosecond soft x-ray free-electron laser pulses with nonlinear compression
/ Prat, Eduard (PSI, Villigen) ; Malyzhenkov, Alexander (CERN) ; Arrell, Christopher (PSI, Villigen) ; Craievich, Paolo (PSI, Villigen) ; Reiche, Sven (PSI, Villigen) ; Schietinger, Thomas (PSI, Villigen) ; Wang, Guanglei (PSI, Villigen)
We demonstrate the generation of coherent soft x-ray free-electron laser (FEL) pulses with a duration below 1 fs using nonlinear compression with a low-charge electron beam (10 pC). The approach is simple, and it does not require any special hardware, so it can be readily implemented at any x-ray FEL facility. [...]
2023 - 5 p.
- Published in : APL Photon. 8 (2023) 111302
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An X-ray free-electron laser with a highly configurable undulator and integrated chicanes for tailored pulse properties
/ Prat, Eduard (PSI, Villigen) ; Haddad, Andre Al (PSI, Villigen) ; Arrell, Christopher (PSI, Villigen) ; Augustin, Sven (PSI, Villigen) ; Boll, Marco (PSI, Villigen) ; Bostedt, Christoph (PSI, Villigen ; Ecole Polytechnique, Lausanne) ; Calvi, Marco (PSI, Villigen) ; Cavalieri, Adrian L (PSI, Villigen ; Bern U.) ; Craievich, Paolo (PSI, Villigen) ; Dax, Andreas (PSI, Villigen) et al.
X-ray free-electron lasers (FELs) are state-of-the-art scientific tools capable to study matter on the scale of atomic processes. Since the initial operation of X-ray FELs more than a decade ago, several facilities with upgraded performance have been put in operation. [...]
2023 - 11 p.
- Published in : Nature Commun. 14 (2023) 5069
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The PolariX-TDS Project: Bead-Pull Measurements and High-Power Test on the Prototype
/ Craievich, Paolo (PSI, Villigen) ; Aßmann, Ralph (DESY) ; Bopp, Markus (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Catalán Lasheras, Nuria (CERN) ; Christie, Florian (DESY) ; Citterio, Alessandro (PSI, Villigen) ; D'Arcy, Richard (DESY) ; Dorda, Ulrich (DESY) ; Foese, Manon (DESY) et al.
A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X- band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The prototype of the novel X-band TDS, the Polarizable X-band (PolariX) TDS, was fabricated at PSI following the high-precision tuning-free production process developed for the C-band Linac of the SwissFEL project. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-FEL2019-WEP036
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In : 39th International Free Electron Laser Conference, Hamburg, Germany, 26 - 30 Aug 2019, pp.WEP036
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Experimental demonstration of novel beam characterization using a polarizable X-band transverse deflection structure
/ Marchetti, B (DESY ; European XFEL, Hamburg) ; Grudiev, A (CERN) ; Craievich, P (PSI, Villigen) ; Assmann, R (DESY) ; Braun, H H (PSI, Villigen) ; Catalan Lasheras, N (CERN) ; Christie, F (DESY) ; D'Arcy, R (DESY) ; Fortunati, R (PSI, Villigen) ; Ganter, R (PSI, Villigen) et al.
The PolariX TDS (Polarizable X-Band Transverse Deflection Structure) is an innovative TDS-design operating in the X-band frequency-range. The design gives full control of the streaking plane, which can be tuned in order to characterize the projections of the beam distribution onto arbitrary transverse axes. [...]
2021 - 14 p.
- Published in : Sci. Rep. 11 (2021) 3560
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Novel $X$ -band transverse deflection structure with variable polarization
/ Craievich, P (PSI, Villigen) ; Bopp, M (PSI, Villigen) ; Braun, H H (PSI, Villigen) ; Citterio, A (PSI, Villigen) ; Fortunati, R (PSI, Villigen) ; Ganter, R (PSI, Villigen) ; Kleeb, T (PSI, Villigen) ; Marcellini, F (PSI, Villigen) ; Pedrozzi, M (PSI, Villigen) ; Prat, E (PSI, Villigen) et al.
A collaboration between DESY, PSI and CERN has developed and built an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The prototype of the novel X-band TDS, the polarizable $X$-band (PolariX) TDS, was fabricated at PSI following the high-precision tuning-free production process developed for the C-band Linac of the SwissFEL project. [...]
2020 - 22 p.
- Published in : Phys. Rev. Accel. Beams 23 (2020) 112001
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