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Yuhui Dong (Chinese Academy of Sciences)19/05/2026, 09:00MC2.A05: Synchrotron Radiation FacilitiesInvited Oral Presentation
The first 4th generation light source in China, HEPS, has been constructed and commissioned. The new light source is expected to produce the emittance of less than 100 pm.rad that can provide hard X-rays with the brilliance higher than 10^22 photons/sec/mm^2/mrad^2/0.1%B.W. In order to stably operate this ultra-low emittance ring, HEPS accommodated the advanced swap-out beam injection scheme,...
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Laurent Nadolski (Synchrotron soleil)19/05/2026, 09:30MC2.A05: Synchrotron Radiation FacilitiesContributed Oral Presentation
SOLEIL II [1] is the French upgrade project of SOLEIL delivering next-generation synchrotron light source through a full renewal of the accelerator complex, the upgrade of 29 beamlines and three laboratories, and a major IT transformation. The compact 2.75 GeV, 354 m Storage Ring will reach 50 pm round-beam emittance using an atypical 7BA–4BA lattice, extensive use of permanent-magnet...
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Dr Alexander Molodozhentsev (Extreme Light Infrastructure Beamlines)19/05/2026, 09:50MC2.A06: Free Electron Lasers (FELs)Contributed Oral Presentation
The ELI Beamlines Centre, situated near Prague in the Czech Republic and operating as part of ELI ERIC, has been designated as the second pillar of the EuPRAXIA distributed user facility. It is developing a user-focused programme centred on laser–plasma accelerators (LPAs). A key initiative involves creating an LPA-driven free-electron laser (FEL) for the XUV and soft X-ray water-window...
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Bo Liu (Shanghai Advanced Research Institute, Chinese Academy of Sciences)19/05/2026, 10:10MC2.A06: Free Electron Lasers (FELs)Contributed Oral Presentation
The SHINE is a high repetition-rate X-ray FEL facility, based on an 8-GeV CW superconducting RF linac, which will become one of the most powerful photon srouces in the world. This project is initiated in 2018 and is under construction up to now. It has been designed to build an 8 GeV CW SCRF linac at repetition rate as high as 1 MHz, 2 beamlines to deliver photons between 0.2 and 15 keV and 6...
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Agostino Marinelli (SLAC National Accelerator Laboratory)19/05/2026, 14:00MC2.A06: Free Electron Lasers (FELs)Invited Oral Presentation
Following the first demonstration of isolated attosecond FEL pulses in 2018 and the Nobel prize in (tabletop) attosecond science in 2023, demand for attosecond x-ray pulses has increased exponentially.
This talk would review recent advances in attosecond pulse generation, including: attosecond lasing at LCLS-II; the first demonstration of attosecond super-radiance; and a measurement of FEL...
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Iryna Chaikovska (Laboratoire de Physique des 2 Infinis Irène Joliot-Curie)19/05/2026, 14:30MC2.A26: Photon sources: Compton sourcesInvited Oral Presentation
ThomX is a compact Compton-based X-ray source demonstrator constructed and operated at IJCLab on the Université Paris-Saclay campus (Orsay, France). The facility comprises a 70 MeV linac, a transfer line, an 18 m storage ring and an extraction line. At the interaction point, laser pulses stored in a high-finesse Fabry-Perot cavity collide with circulating electron bunches, generating X-rays...
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Joseph Calvey (Argonne National Laboratory)19/05/2026, 15:00MC2.A05: Synchrotron Radiation FacilitiesContributed Oral Presentation
For swap-out operation in the APS-Upgrade storage ring, the injector must supply a full charge bunch in one shot. For 200 mA operation in 48 bunch timing mode, the required charge per bunch is 16 nC, which is challenging for the injector chain. In this paper we report on the present status of high charge operation and discuss upcoming improvements to increase the charge limit. We also...
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Dr Mark Johnson (Science and Technology Facilities Council)19/05/2026, 15:20MC2.A08: Photon sources: Linear AcceleratorsContributed Oral Presentation
The CLARA facility at Daresbury Laboratory is a medium energy user facility for wide range of applications such as novel acceleration, cancer-therapy, and advanced diagnostics research. CLARA is currently finalising beam commissioning after an extended period of technical systems commissioning. During this period CLARA hosted its first set of “friendly” user experiments in its dedicated...
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Masamitsu Aiba (Paul Scherrer Institute)19/05/2026, 15:40MC2.A04: Photon sources: Circular AcceleratorsContributed Oral Presentation
Commissioning of SLS 2.0, the first light-source storage ring employing a substantial number of permanent magnets to realize a compact multi-bend achromat lattice, began in January 2025. As reported at IPAC'25, the nominal beam current of 400 mA was achieved within the first three months of accelerator-dedicated commissioning. Since then, significant additional progress has been made, such as...
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Aashoo Sharma (MAX IV Laboratory), Ake Andersson (MAX IV Laboratory), Eshraq Al-Dmour (MAX IV Laboratory), Francis Cullinan (MAX IV Laboratory), Hamed Tarawneh (MAX IV Laboratory), Henrique de Oliveira Caiafa Duarte (MAX IV Laboratory), Mr Karl Åhnberg (MAX IV Laboratory), Magnus Sjöström (MAX IV Laboratory), Marco Apollonio (MAX IV Laboratory), Marek Grabski (MAX IV Laboratory), Murilo Barbosa Alves (MAX IV Laboratory), Pedro Tavares (MAX IV Laboratory), Robert Lindvall (MAX IV Laboratory), Sara Thorin (MAX IV Laboratory), Dr Stephen Molloy (MAX IV Laboratory)21/05/2026, 09:00MC2.A05: Synchrotron Radiation FacilitiesInvited Oral Presentation
The MAX IV 3 GeV storage ring in Lund, Sweden, was the first implementation of a multibend achromat (MBA) lattice fourth-generation light source. Since it started delivery of light in 2016, four succeeding MBA-based rings and variants have come on-line: ESRF-EBS, Sirius, APS-U and SLS 2.0. Several others are being planned, designed, built or commissioned. All of these capitalize on the MBA...
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Zheng Qi (Shanghai Advanced Research Institute)21/05/2026, 09:30MC2.A06: Free Electron Lasers (FELs)Contributed Oral Presentation
High repetition-rate, short wavelength and fully coherent free electron lasers can open up new possibilities in research frontiers in high-resolution serial coherent diffraction imaging and time-resolved ultrafast spectroscopies. At present, soft x-ray external seeded FELs can hardly reach over 10 kHz repetition-rate due to the limited external seed laser power. In our recent experiment, we...
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Giulio Stancari (Fermi National Accelerator Laboratory)21/05/2026, 09:50MC2.A24: Photon sources: Accelerators and Storage Rings, OtherContributed Oral Presentation
The aims of the CLARA experiment at the Fermilab Integrable Optics Test Accelerator (IOTA) were to directly measure the coherence length of undulator radiation emitted by a single electron and to test whether the radiation is in a pure classical Glauber coherent state or in a quantum mixture of coherent and Fock states. We used a Mach-Zehnder interferometer (MZI) to study visible radiation...
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Wenxiang Hu (Paul Scherrer Institute, ETH Zurich)21/05/2026, 10:10MC2.A06: Free Electron Lasers (FELs)Contributed Oral Presentation
X-ray free-electron lasers (FELs) are powerful photon sources offering a wide wavelength range, subfemtosecond pulse duration, and high brightness. Most X-ray FELs are based on self-amplified spontaneous emission (SASE). SASE-FEL radiation has excellent transverse but only limited longitudinal or temporal coherence, with power and spectral profiles consisting of multiple randomly distributed...
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