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FOCUS: fast Monte Carlo approach to coherence of undulator sources
/ Siano, M (Milan U. ; INFN, Milan) ; Geloni, G (European XFEL, Hamburg) ; Paroli, B (Milan U. ; INFN, Milan) ; Butti, D (CERN) ; Lefèvre, T (CERN) ; Mazzoni, S (CERN) ; Trad, G (CERN) ; Iriso, U (CELLS - ALBA, LLS) ; Nosych, A A (CELLS - ALBA, LLS) ; Torino, L (CELLS - ALBA, LLS) et al.
FOCUS (Fast Monte CarlO approach to Coherence of Undulator Sources) is a new GPU-based simulation code to compute the transverse coherence of undulator radiation from ultra-relativistic electrons. The core structure of the code, which is written in the language C++ accelerated with CUDA, combines an analytical description of the emitted electric fields and massively parallel computations on GPUs. [...]
2023 - 10 p.
- Published in : J. Synchrotron Radiat. 30 (2023) 217-226
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Beam Instrumentation Challenges for FCC-ee
/ Wendt, Manfred (CERN) ; Carideo, Emanuela (CERN) ; Härer, Bastian (KIT, Karlsruhe, IPE) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Mitsuhashi, Toshiyuki (Sokendai, Tsukuba) ; Müller, Anke-Susanne (KIT, Karlsruhe, IPE) ; Niehues, Gudrun (KIT, Karlsruhe, IPE) ; Reißig, Micha (KIT, Karlsruhe, IPE) et al.
For the accelerator-based future of high energy physics at the energy frontier, CERN started to investigate a 92 km circumference Future Circular Collider (FCC), as e⁺/e⁻ collider the FCC-ee will operate at beam energies up to 182.5 GeV. Beside the machine operational aspects, beam instrumentation will play a key role in verifying and optimizing the machine to achieve the ambitious beam parameters and quality. [...]
2023 - 10 p.
- Published in : JACoW eeFACT 2022 (2023) 208-217
Fulltext: PDF;
In : 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+ e- Colliders (eeFACT2022), INFN, Frascati, Italy, 12 - 16 Sep 2022, pp.208-217
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CERN’s beam instrumentation R&D; study for FCC-ee
/ Mazzoni, S (CERN) ; Schloegelhofer, A (CERN ; Vienna U.) ; Nosych, A A (CELLS - ALBA, LLS) ; Muller, A -S (KIT, Karlsruhe) ; Haerer, B (KIT, Karlsruhe) ; Paroli, B (Milan U.) ; Butti, D (CERN) ; Howling, E (CERN ; Oxford U.) ; Trad, G (CERN) ; Niehues, G (KIT, Karlsruhe) et al.
The Future Circular Collider (FCC) R&D; study was started in 2021 as a comprehensive feasibility analysis of CERN’s future accelerator project encompassing technical, administrative and financial aspects. As part of the study, Beam Instrumentation (BI) is a key technical infrastructure that will have to face unprecedented challenges. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPL088
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPL088
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FOCUS: Fast Monte-CarlO Approach to Coherence of Undulator Sources
/ Siano, Mirko (U. Milan (main)) ; Butti, Daniele (CERN) ; Geloni, Gianluca (European XFEL, Hamburg) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Nosych, Andriy (CELLS - ALBA, LLS) ; Paroli, Bruno (U. Milan (main)) ; Potenza, Marco (U. Milan (main)) ; Torino, Laura (CELLS - ALBA, LLS) et al.
We present Fast Monte-CarlO approach to Coherence of Undulator Sources (FOCUS), a new GPU-based code to compute the transverse coherence of X-ray radiation from undulator sources. The code relies on scaled dimension- less quantities and analytic expressions of the electric field emitted by electrons in an undulator. [...]
2022 - 4 p.
- Published in : JACoW IBIC 2022 (2022) 257-260
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.257-260
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PSF Characterization of the ALBA X-Ray Pinholes
/ Iriso, Ubaldo (CELLS - ALBA, LLS) ; Cazorla, Alba (CELLS - ALBA, LLS) ; Mases Solé, Ingrid (CERN) ; Nosych, Andriy (CELLS - ALBA, LLS) ; Zeus, Martí (CELLS - ALBA, LLS)
ALBA is currently equipped with two X-ray pinhole cameras for continuous beam size monitoring using the synchrotron radiation from two different bending magnets. The first pinhole was installed on day-1 and it is working properly since 2011 as the work-horse for the ALBA emittance measurements. [...]
2022 - 5 p.
- Published in : JACoW IBIC 2022 (2022) 421-425
Fulltext: PDF;
In : 11th International Beam Instrumentation Conference (IBIC 2022), Cracow, Poland, 11 - 15 Sep 2022, pp.421-425
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Summary of the ARIES Workshop on Materials and Engineering Technologies for Particle Accelerator Beam Diagnostic Instruments
/ Forck, Peter (Darmstadt, GSI) ; Eakins, Daniel (Oxford U.) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Jones, Owain Rhodri (CERN) ; Kube, Gero (DESY) ; Schlott, Volker (PSI, Villigen) ; Veness, Raymond (CERN) ; Wittenburg, Kay (DESY)
ARIES* is an EU-sponsored programme for accelerator research and innovation. An international Workshop was held online as part of this programme in June 2021 on the topic of ’Materials and Engineering Technologies for Particle Accelerator Beam Diagnostic Instruments’. [...]
JACoW, 2021 - 5 p.
- Published in : JACoW IBIC 2021 (2021) 16-20
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.16-20
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Two-Dimensional Beam Size Measurements with X-Ray Heterodyne Near Field Speckles
/ Siano, Mirko (Milan U.) ; Butti, Daniele (CERN) ; Goetz, Alexander (CERN) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Lefèvre, Thibaut (CERN) ; Mazzoni, Stefano (CERN) ; Nosych, Andriy A (CELLS - ALBA, LLS) ; Paroli, Bruno (Milan U.) ; Potenza, Marco A C (Milan U.) ; Solano, Eduardo (CELLS - ALBA, LLS) et al.
We report on 2D beam size measurements with a novel interferometric technique named Heterodyne Near Field Speckles, capable of resolving few-micrometer beam sizes. It relies on the interference between the weak spherical waves scattered by a colloidal suspension and the intense transilluminating X-ray beam. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IBIC 2021 (2021) 176-179
Fulltext: PDF;
In : 10th International Beam Instrumentation Conference (IBIC 2021), Online, Korea, 13 - 17 Sep 2021, pp.176-179
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Two-dimensional electron beam size measurements with x-ray heterodyne near field speckles
/ Siano, M (Milan U. ; INFN, Milan) ; Paroli, B (Milan U. ; INFN, Milan) ; Potenza, M A C (Milan U. ; INFN, Milan) ; Teruzzi, L (Milan U. ; INFN, Milan) ; Iriso, U (CELLS - ALBA, LLS) ; Nosych, A A (CELLS - ALBA, LLS) ; Solano, E (CELLS - ALBA, LLS) ; Torino, L (CELLS - ALBA, LLS) ; Butti, D (CERN) ; Goetz, A (CERN) et al.
In this paper we report on recent two-dimensional (2D) electron beam size measurements with a nonconventional synchrotron radiation interferometric technique based on x-ray heterodyne near field speckles (HNFS). The method relies on Fourier analysis of the random speckle patterns generated by a water suspension of nanospheres to assess the full 2D transverse coherence of the incoming x rays. [...]
2022 - 12 p.
- Published in : Phys. Rev. Accel. Beams 25 (2022) 052801
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Simulation Methods for Transverse Beam Size Measurements Using the Heterodyne Near Field Speckles of Hard X-rays
/ Goetz, Alexander (CERN) ; Butti, Daniele (CERN) ; Iriso, Ubaldo (CELLS - ALBA, LLS) ; Mazzoni, Stefano (CERN) ; Nosych, Andriy (CELLS - ALBA, LLS) ; Paroli, Bruno (Milan U.) ; Potenza, Marco (INFN, Milan ; Milan U.) ; Siano, Mirko (Milan U.) ; Teruzzi, Luca (Milan U.) ; Torino, Laura (CELLS - ALBA, LLS) et al.
The Heterodyne Near Field Speckles (HNFS) is a special type of interferometry technique where radiation is scattered by nanoparticles suspended in a medium. The scattered waves and the transmitted radiation form an interference pattern, which is modulated by the spatial coherence of the radiation and by the scattering properties of the nanoparticles. [...]
2020 - 4 p.
- Published in : 10.18429/JACoW-IBIC2020-THPP33
Fulltext: PDF;
In : 9th International Beam Instrumentation Conference, Online, 14 - 18 Sep 2020, pp.THPP33
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