Conveners
Parallel A: Parallel A | WG1 + WG4 + WG5
- Bo Liu (Shanghai Advanced Research Institute)
Parallel A: Parallel A | WG1 + WG4 + WG5
- Petr Tuev (Budker Institute of Nuclear Physics SB RAS)
Parallel A: Parallel A | WG1 + WG4 + WG5
- Yiwei WANG
Parallel A: Parallel A | WG1 + WG4 + WG5
- Renjun Yang (Institute of High Energy Physics)
Parallel A: Parallel A | WG1 + WG4 + WG5
- Kazuyuki Sakaue (The University of Tokyo)
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Dr Jiahang Shao (Institute of Advanced Light Source Facilities, Shenzhen)10/14/26, 1:30 PMAccelerator and its related technologies for photon scienceTalk
Transverse deflecting cavities (TDCs) are important tools for beam diagnostics, as they imprint a time-dependent transverse kick on a charged bunch via radio-frequency (RF) electromagnetic fields in transverse modes. The polarization, defined by the orientation of the electric field, is a key figure of merit of a TDC, as it determines the deflection direction. In conventional TDCs, the...
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Jinfang Chen (Shanghai Advanced Research Institute)10/14/26, 1:50 PMAccelerator and its related technologies for photon scienceTalk
The SHINE Linac has been optimized to accelerate the beam to 8 GeV using 54 high-Q cryomodules (CMs). Mass production of high-Q cavities and CMs is currently underway. To date, approximately 450 high-Q cavities processed with mid-T baking or N-doping recipes have been fabricated and tested. The majority of these cavities have been assembled into CMs. Over 45 CMs have undergone testing; among...
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Yaoyao Du (Institute of High Energy Physics, Chinese Academy of Sciences)10/14/26, 2:10 PMAccelerator and its related technologies for photon scienceTalk
HEPS demands improved beam orbit control precision, long-term stability and reliability, which set stricter requirements for digital BPM signal processors. Serving as the “eyes” of the HEPS accelerator, BPMs play a critical role in storage ring beam tuning. We introduce recent developments of HEPS BPM electronics, as well as the performance and practical applications of the HEPS BPM.
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Tianlong He (USTC)10/14/26, 2:30 PMAccelerator and its related technologies for photon scienceTalk
This presentation will introduce two types of zero-mode instabilities induced by the double RF fundamental impedances in synchrotron radiation storage rings. The first type is driven by the high loaded-Q impedance of a superconducting harmonic cavity, with the distinctive feature that it can be enhanced by radiation damping. The second type is driven by the closed-loop main cavity impedance...
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Yongfang Liu (SARI, CAS)10/14/26, 3:10 PMAccelerator and its related technologies for photon scienceTalk
This paper presents the development status of kicker magnets for existing operational and under-construction accelerator light source facilities at the Shanghai Advanced Research Institute, Chinese Academy of Sciences. It focuses on kicker magnets deployed for synchrotron radiation light sources (e.g., SSRF) and free-electron laser facilities (SXFEL and SHINE), including the design...
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Yu Fang (Tsinghua University)10/14/26, 3:30 PMInnovative accelerator techniquesTalk
MeV ultrafast electron diffraction (UED) is a widely used tool for studying ultrafast structural dynamics in many scientific fields. The laser wakefield accelerator (LWFA), with its ultrahigh accelerating gradient, ultrasmall accelerating structure, and natural synchronization between the laser and the electron beam, offers new possibilities for building tabletop UED sources with high temporal...
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Enze Jiang (Peking University)10/14/26, 3:50 PMInnovative accelerator techniquesTalk
Propelled by high-power laser advancements, Laser Plasma Accelerators (LPA) are transitioning from research to engineering, offering gradients thousands of times higher than conventional accelerators. This report details Peking University’s CLAPA team’s progress, highlighting the "Huatuo-1" PW-class proton accelerator. Achieving over 115 MeV, the team overcame stability bottlenecks, paving the...
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Yiwei WANG10/14/26, 4:10 PMInnovative accelerator techniquesTalk
Abstarct: The Institute of High Energy Physics (IHEP) is constructing a plasma wakefield
acceleration (PWFA) test facility based on the BEPCII linac, comprising two
beamlines and a petawatt laser system. Beamline I delivers 2 GeV electron/positron
beams from BEPCII, while Beamline II is a newly built 150 MeV high-performance linac
capable of producing >5 nC, >10 kA electron...
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Yixuan Liu10/14/26, 4:30 PMInnovative accelerator techniquesTalk
The plasma accelerator at the Shanghai Soft X-ray Free-Electron Laser facility (SXFEL) combines high-quality electron beams with an existing undulator system to investigate plasma wakefield acceleration, beam manipulation and advanced light-source applications. This talk presents the platform layout and development, with a focus on electron-beam transport and matching, laser–electron beam...
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Ke Feng (Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences)10/14/26, 4:50 PMInnovative accelerator techniquesTalk
Laser wakefield accelerators (LWFAs) feature an ultrahigh accelerating gradient exceeding 100 GV/m, holding great promise for developing compact particle accelerators and tabletop X-ray free-electron lasers (FELs). Realizing LWFA-driven tabletop FELs has been recognized as one of the major challenges in this field for the coming decade. Although several research groups worldwide have achieved...
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Petr Tuev (Budker Institute of Nuclear Physics SB RAS)10/14/26, 5:10 PMInnovative accelerator techniquesTalk
Plasma acceleration technology opens up promising prospects for the development of modern particle accelerators. The complexity of this phenomenon makes numerical modelling essential for its study. The primary numerical method is particle-in-cell simulation. The accuracy of the macroparticle trajectory calculation is crucial for determining the simulation precision. Modern numerical methods...
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Ivan Tsymbalov (Institute for Nuclear Research of the Russian Academy of Sciences)10/14/26, 5:30 PMInnovative accelerator techniquesTalk
The generation of electron beams with high average and peak powers by an intense laser pulse is largely associated with the engineering of a plasma target, the parameters of
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which determine both the efficiency of the particle acceleration process and the ability to rapidly resume upon the arrival of the next impulse. This work is aimed at creating a bright laser-plasma source of high-energy... -
YANJUN GU (The University of Osaka)10/15/26, 1:30 PMInnovative accelerator techniquesTalk
Laser-wakefield acceleration (LWFA) offers a promising route toward compact free-electron lasers (FELs), but achieving the required beam quality and stability remains a major challenge. Here, we demonstrate the generation of high-quality, reproducible monoenergetic electron beams using a compact 0.8 J laser system through optimization of the plasma density, electron injection, laser wavefront,...
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Kazuyuki Sakaue (The University of Tokyo)10/15/26, 1:50 PMInnovative accelerator techniquesTalk
At the University of Tokyo, we are conducting research on dielectric laser acceleration (DLA), in which charged particles are directly accelerated by the electromagnetic fields of laser light, potentially enabling a substantial reduction in accelerator size. We are developing a DLA system driven by a 2-µm thulium-doped fiber laser with high wall-plug efficiency and employing microfabricated...
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Takamitsu Otsuka (Utsunomiya University)10/15/26, 2:10 PMInnovative accelerator techniquesTalk
Laser wakefield acceleration (LWFA) is a promising approach for generating high-charge electron beams for various applications. In collaboration with the Kansai Institute for Photon Science (QST-KPSI), we have been conducting experimental studies of LWFA using ionization injection to generate high-charge electron beams.
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To improve the spectral quality of the accelerated electron beam, a... -
Juntaro Takaku (Graduate School of Regional Development and Creativity, Utsunomiya University)10/15/26, 2:30 PMInnovative accelerator techniquesTalk
Laser wakefield acceleration (LWFA) can produce high-energy electron beams over a short acceleration distance. In collaboration with the Kansai Institute for Photon Science (QST-KPSI), we have investigated the control of electron injection and acceleration through plasma density shaping and laser focusing.
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A plasma density down-ramp was introduced near the laser entrance to trigger and... -
鉦瑋 簡 (國立清華大學)10/15/26, 2:50 PMInnovative accelerator techniquesTalk
The development of high-repetition-rate, few-terawatt (TW) laser systems enables the generation of high-average-flux few-keV betatron X-rays for coherent diffraction imaging and submicrometer-scale sample characterization. In principle, the betatron radiation power scales as $P_\beta \propto n_e^2 \gamma^2 r_\beta^2$ [1], where $n_e$ is the plasma density, $\gamma$ is the relativistic Lorentz...
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Rasim Mamutov (Budker Institute of Nuclear Physics)10/15/26, 3:10 PMInnovative accelerator techniquesTalk
The conventional approach to accelerator optics tuning and commissioning rely on measuring the closed-orbit response matrix (ORM), yet its practical application is often constrained by the excessive data acquisition time, especially for modern facilities with hundreds of elements. This paper presents advanced techniques to substantially reduce the measurement time while preserving the high...
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Theo Williams (James Cook University)10/15/26, 3:30 PMInnovative accelerator techniquesTalk
Microbunching of a long electron beam via interaction with a 1 THz plasma is investigated as a mechanism for generating coherent terahertz (THz) radiation. This work presents a theoretical design study for the Pohang Accelerator Laboratory (PAL) e-labs beamline, evaluating dependence of initial electron beam parameters on microbunch formation following plasma interaction.
The initial...
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Mr Peng Zhu (Institute of High Energy Physics, CAS)10/15/26, 4:10 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
The Phase-II upgrade of the China Spallation Neutron Source (CSNS-II), aiming for a 500-kW beam power, imposes stringent physical constraints on beam synchronization, necessitating a paradigm shift from conventional static triggers to physics-driven accelerator control. This paper presents the development and field implementation of an innovative MicroTCA.4-based global timing system for the...
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Renjun Yang (Institute of High Energy Physics)10/15/26, 4:30 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
Achieving sustainable beam operation in high-power proton/hadron accelerators requires careful control and minimization of halo-particle-induced beam loss. This necessitates a clear understanding of the halo-particle distribution. While state-of-the-art instruments can achieve a dynamic range of ~10⁶ using counting readout schemes, a novel fluorescence wire scanner combined with a conventional...
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Muhammad Abdul Rehman10/15/26, 4:50 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
Understanding the evolution of transverse beam profiles is critical for stable high power operation of intense proton synchrotrons. A residual-gas ionization profile monitor (IPM) has been developed and commissioned in the 1.6 GeV Rapid Cycling Synchrotron (RCS) of the China Spallation Neutron Source (CSNS) to enable non-invasive, bunch-by-bunch horizontal beam profile measurements. Beam...
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SEUNGHYUN LEE (KOREA ATOMIC ENERGY RESEARCH INSTITUTE)10/15/26, 5:10 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
Since 2013, the 100 MeV proton linac at the Korea Multi-purpose Accelerator Complex (KOMAC) has been in continuous, stable operation, providing reliable irradiation services for materials, biomedical, semiconductor, and nuclear sciences across four dedicated user beamlines. To expand user capabilities, a white-spectrum neutron beam service is undergoing pilot operation, with official service...
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Dr Masato Kimura (the University of Tokyo)10/15/26, 5:30 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
Acceleration of cooled muons is a promising technology for realizing a low-emittance muon beam, which is essential for novel muon science such as precise measurement of the muon dipole moments. This technology is being developed at the Materials and Life Science Experimental Facility (MLF) at J-PARC, where muons are cooled to thermal energies through muonium formation followed by laser...
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Dr Ikuo Ide (KEK)10/15/26, 5:50 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
Compact accelerator-driven neutron sources provide useful platforms for neutron science, industrial applications, and medical applications. In particular, neutron sources based on the $^{7}$Li(p,n)$^{7}$Be reaction are attractive because neutrons can be produced using low-energy proton beams. RANS-III is a transportable compact neutron system designed for outdoor use to visualize internal...
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Teng Tan (Institute of Modern Physics, Chinese Academy of Sciences)10/15/26, 6:10 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
The CiADS (China Initiative Accelerator Driven System) superconducting linac, constructed by the Institute of Modern Physics, CAS, is the highest-power CW superconducting linac under construction worldwide. Its scientific and societal significance extends beyond nuclear waste transmutation and raising uranium utilization from ~1% to ~95%, encompassing isotope production, muon science, and...
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Mingyang Huang (Institute of High Energy Physics, Chinese Academy of Sciences)10/15/26, 6:30 PMAccelerator and its related technologies for hadron (neutron) scienceTalk
For the high intensity proton accelerator, the laser-assisted H⁻ stripping is a new essential technology. It can be an alternative to the foil stripping which may be used to overcome various difficulties faced by the stripping foils, such as short lifetime, high temperature, large radiation dose, etc. In this paper, based on the second phase of China Spallation Neutron Source (CSNS-II), the...
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