Event Highlights: Scientific Contributions and Discussions at IPAC 2025

https://indico.jacow.org/event/91/ Final Round Contribution orals / Session chairs SPC3-Day2 Yoichi Sato (KEK/J-PARC), IPAC 25 SPC Chair IPAC 25 SPC3 2025-JAN-06,07, Tokyo, Japan 1 IPAC2025 SPC3 Yoichi Sato

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SPC3 DAY1 Select contributed orals 1stRound mainly focusing on scientific impact, but considering regional balance AS:EMEA:AM ~= 2:1:1 for Asian-IPAC. SPC3 DAY2 Select contributed orals 2ndRound considering country/facility/gender balances also. Select Session Chairs 22 chairs are needed. 16 SPC members are not enough to cover. Please check your schedule in the week of IPAC 25 MC1 MC2 MC3 MC4 MC5 MC6 MC7 MC8 Number of contributed talks 7 8 5 6 9 7 9 3 3 Final Discussion Contributed oral allocations for each MC are (total = 54),

Day1 Homework for Contribution Orals MC1: Add the first backup from Asia. Prioritize the EU talks and compare the Asian talk with the third-place EU talk. MC2: Check the actual activities of abstract #1660. Consider abstract #875 (Korea talk) in round 2. MC3: Add the first nomination from Asia, excluding Japan. Check the actual activities of abstract #698. The title "Revolution" is a bold word. MC5: Add abstract #1752 (Chinese talk) and remove abstract #875 ( Korea talk). MC6: Add abstract #1690 #1609. MC7: Consider including abstract #978 in this MC. MC8: Consider abstracts #113 and #1232, and compare them with abstract #977. 4

2ndround list of recommended contributed-talks taking into account vote ranking and region balance Country of affliation Id Title Track First name Family name Speaker (affiliation) Region 1091Updated baseline design for HALHF: the hybrid, asymmetric, linear Higgs factory MC1.A16 Carl A. Lindstr m University of Oslo NO Europe 493The third long shutdown (LS3) of the CERN accelerator complex 503Commissioning of BEPCII-U 855RHIC polarized proton operation in Run24 MC1.A01 MC1.A02 MC1.A01 Jean-Philippe Tock Huiping Kiel European Organization for Nuclear Research Institute of High Energy Physics Brookhaven National Laboratory CH CN US Europe Asia America Geng Hock Solfaroli Camillocci Ikeda Litvinenko 1377Exceeding high-luminosity LHC performance targets during the 2024 Pb-Pb ion run 1749Observations and efforts to reduce sudden beam loss at SuperKEKB 701Future e+e- colliders using recycling Energy-Recovery Linacs 993Commissioning of the Advanced Photon Source Upgrade -- the first swap-out injection- based synchrotron light source 690SLS 2.0 storage ring commissioning 436An ultrafast strong-field terahertz light source to characterize quantum functional materials 883First beam commissioning of the HZB superconducting radio-frequency photoelectron gun 1309Operational status and future project of the KEK Photon Factory 1558Evaluation method and countermeasures for the beam loss in fourth-generation light sources 1660Extreme radiation from electron beams in ion channels and undulators 875Optimization of the Korea-4GSR storage ring for increasing the off-momentum dynamic aperture by analyzing resonance driving terms MC1.A01 MC1.A02 MC1.A03 Matteo Hitomi Vladimir European Organization for Nuclear Research High Energy Accelerator Research Organization Stony Brook University CH JP US Europe Asia America MC2.A04 Vadim Sajaev Argonne National Laboratory US America MC2.A05 Michael B ge Paul Scherrer Institut University of Science and Technology of China,Anhui Laboratory of Advanced Photon Science and Technology CH Europe MC2.A25 Tong Zhang CN Asia MC2.T02 Thorsten Kamps Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH DE Europe MC2.A05 Takashi Obina High Energy Accelerator Research Organization JP Asia MC2.A05 Minori Shikauchi Japan Synchrotron Radiation Research Institute JP Asia MC2.T15 Monika Yadav University of California, Los Angeles US America MC5.D02 Junha Kim Pohang Accelerator Laboratory KR Asia 182010 GeV laser plasma acceleration and muon generation at BELLA PW Experimental generation of petawatt power, extreme electron beams in a particle accelerator MC3.A22 Hai-En Tsai Lawrence Berkeley National Laboratory US America 990 MC3.A15 Claudio Emma SLAC National Accelerator Laboratory US America 1095First measurements of electron acceleration with plasma density steps at AWAKE MC3.A22 Fern Pannell University College London UK Europe 562Development of cold atom electron source in KEK Development of the sub-nanosecond grid-controlled electron source for Hefei Advanced Light Facility injector MC3.T02 Yosuke Honda High Energy Accelerator Research Organization JP Asia 1943 MC3.T02 Feng-lei Shang University of Science and Technology of China CN Asia 569Challenges and solutions for high-intensity beam operations in the J-PARC Linac 997Upgrade progress for the CSNS-II RCS MC4.A08 MC4.A17 Yong Ming-Yang Liu Huang High Energy Accelerator Research Organization Institute of High Energy Physics JP CN Asia Asia 1599Status of the proton linac for boron neutron capture therapy in the iBNCT project 439FAIR commissioning - Towards first science MC4.A08 MC4.A17 Masaharu Stephan Sato Reimann High Energy Accelerator Research Organization GSI Helmholtzzentrum f r Schwerionenforschung GmbH JP DE Asia Europe 1524Commissioning 1.7 MW, 1.3 GeV Beam for the Proton Power Upgrade at SNS 772Injection into resonance islands MC1.A17 MC4.A04 Nicholas Henry Evans Lovelace III Oak Ridge National Laboratory Brookhaven National Laboratory US US America America 5 IPAC2025 SPC3 Yoichi Sato

864No parametric instabilities in actual linear accelerators except the envelope instability MC5.D08 Dong-O Jeon Institute for Basic Science KR Asia 926Empowering a broad and diverse community in beam dynamics simulations with Xsuite MC5.D11 Szymon Lopaciuk European Organization for Nuclear Research CH Europe 724Assessing the origin of the LHC beam halo MC5.D07 Milica Rakic Ecole Polytechnique F d rale de Lausanne CH Europe 949Coherent stability and dynamic aperture with strong space charge for the FAIR SIS100 synchrotron MC5.D05 Adrian Oeftiger John Adams Institute UK Europe 913Study on the eddy current distribution in the coating layer on the ceramic chamber of a nonlinear kicker MC5.D03 Hao-Wen Luo National Synchrotron Radiation Research Center TW Asia 658A module for fast auto differentiable simulations MC5.D11 Ji Qiang Lawrence Berkeley National Laboratory US America 1752Off-resonance scheme for highly coupled lattice design in the diffraction-limited light sources MC5.D01 Yihao Gong Shanghai Synchrotron Radiation Facility CN Asia 1144Comprehensive study of Robinson instability in active and passive higher harmonic cavities for bunch lengthening MC5.D05 Youngmin Park Pohang University of Science and Technology KR Asia 1496Dynamic dipole kick due to a rippling sextupole MC5.D03 Boris Podobedov Brookhaven National Laboratory US America 2078Development of non-invasive beam diagnostics by quantum optics-based detection MC6.T03 Shukui Zhang Thomas Jefferson National Accelerator Facility US America 514Measurement techniques using the electron beam profile scanner at the Fermilab Main Injector MC6.T03 Matilda Mwaniki Illinois Institute of Technology US America 1609Machine learning-based orbit correction in the RCS of CSNS MC6.D13 Xiaohan Lu Institute of High Energy Physics CN Asia 521Supersonic gas curtain-based in-vivo transverse beam profile monitoring for medical accelerators MC6.A28 Narender Kumar Cockcroft Institute UK Europe 1247Data-driven hysteresis compensation in the CERN SPS main magnets MC6.D13 Anton Lu European Organization for Nuclear Research CH Europe Experimental demonstration of transient-beam-loading compensation using new digital LLRF system at the Photon Factory storage ring 711 MC6.T05 Daichi Naito High Energy Accelerator Research Organization JP Asia 1055Development of an RFSoC-based low-level RF controller for an electron linac MC6.T27 Hirokazu Maesaka RIKEN SPring-8 Center JP Asia 681Evaluation of 3D-printed plastics for ultra-high vacuum applications: outgassing and residual gas analysis MC7.T14 Artur Domingues MAX IV Laboratory SE Europe 2063Further high power tests of the additive manufacturing IH-type cavity MC4.A08 Hendrik H hnel Goethe Universit t Frankfurt DE Europe 1148Nb3Sn cavity development based on vapor deposition method at KEK MC7.T07 Hayato Ito High Energy Accelerator Research Organization JP Asia 1434Cryogenic eficiency and sustainability aspects for particle accelerators & detectors MC7.T13 Antonio Perin European Organization for Nuclear Research CH Europe 763Active 3rd harmonic RF system for ALBA MC7.T06 Francis Perez ALBA-CELLS Synchrotron ES Europe 611Design and implementation of ridge waveguides for dual-mode microwave structure MC7.T06 Xiaoxia Huang Shanghai Synchrotron Radiation Facility CN Asia 1581Searches for RF breakdown precursors using Cherenkov light in optical fibers MC6.T03 Paarangat Pushkarna The University of Melbourne AU Asia 77920 years of CESR-B cavity operation at the CLS MC7.T07 Fr d ric Le Pimpec Canadian Light Source Inc. CA America 1360Geant4 modeling of field emission in SRF cavities MC7.T07 Sajini Wijethunga Fermi National Accelerator Laboratory US America 1983Commissioning of the South African Isotope Facility MC8.U04 Adriaan Barnard iThemba LABS ZA Europe 978High-level environmental sustainability guidelines for large accelerator facilities MC8.U11 Hannah Wakeling John Adams Institute UK Europe Engineering magnetic carbon nanotubes via swift heavy ion irradiation for spintronics and quantum technologies: XAS and RAMAN study 1232 MC8.U08 Priyal Singhal Panjab University IN Asia IPAC2025 SPC3 Yoichi Sato 6

Contributed Orals ( 54 Talks) After the 2ndround 7

After the 2ndround Contributed and Invited Orals (90 Talks) Balances are almost same for contribution and invited orals --- Almost OK for SPC3 Can we seek better balance? We may try to increase Asia ratio. Which country? Not Japan/China Hard to improve Gender balance more 8

2ndround list of recommended contributed-talks taking into account vote ranking and region balance 3rdround discussion Country of affliation Id Title Track First name Family name Speaker (affiliation) Region 1091Updated baseline design for HALHF: the hybrid, asymmetric, linear Higgs factory MC1.A16 Carl A. Lindstr m University of Oslo NO Europe 493The third long shutdown (LS3) of the CERN accelerator complex 503Commissioning of BEPCII-U 855RHIC polarized proton operation in Run24 MC1.A01 MC1.A02 MC1.A01 Jean-Philippe Tock Huiping Kiel European Organization for Nuclear Research Institute of High Energy Physics Brookhaven National Laboratory CH CN US Europe Asia America Geng Hock Solfaroli Camillocci Ikeda Litvinenko 1377Exceeding high-luminosity LHC performance targets during the 2024 Pb-Pb ion run 1749Observations and efforts to reduce sudden beam loss at SuperKEKB 701Future e+e- colliders using recycling Energy-Recovery Linacs 993Commissioning of the Advanced Photon Source Upgrade -- the first swap-out injection- based synchrotron light source 690SLS 2.0 storage ring commissioning 436An ultrafast strong-field terahertz light source to characterize quantum functional materials 883First beam commissioning of the HZB superconducting radio-frequency photoelectron gun 1309Operational status and future project of the KEK Photon Factory 1558Evaluation method and countermeasures for the beam loss in fourth-generation light sources 1660Extreme radiation from electron beams in ion channels and undulators 875Optimization of the Korea-4GSR storage ring for increasing the off-momentum dynamic aperture by analyzing resonance driving terms MC1.A01 MC1.A02 MC1.A03 Matteo Hitomi Vladimir European Organization for Nuclear Research High Energy Accelerator Research Organization Stony Brook University CH JP US Europe Asia America MC2.A04 Vadim Sajaev Argonne National Laboratory US America MC2.A05 Michael B ge Paul Scherrer Institut University of Science and Technology of China,Anhui Laboratory of Advanced Photon Science and Technology CH Europe MC2.A25 Tong Zhang CN Asia MC2.T02 Thorsten Kamps Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH DE Europe MC2.A05 Takashi Obina High Energy Accelerator Research Organization JP Asia MC2.A05 Minori Shikauchi Japan Synchrotron Radiation Research Institute JP Asia MC2.T15 Monika Yadav University of California, Los Angeles US America MC5.D02 Junha Kim Pohang Accelerator Laboratory KR Asia 182010 GeV laser plasma acceleration and muon generation at BELLA PW Experimental generation of petawatt power, extreme electron beams in a particle accelerator MC3.A22 Hai-En Tsai Lawrence Berkeley National Laboratory US America 990 MC3.A15 Claudio Emma SLAC National Accelerator Laboratory US America 1095First measurements of electron acceleration with plasma density steps at AWAKE MC3.A22 Fern Pannell University College London UK Europe 562Development of cold atom electron source in KEK Development of the sub-nanosecond grid-controlled electron source for Hefei Advanced Light Facility injector Progress on experimental demonstration of high-power generation from 0.4 THz corrugated structure MC3.T02 Yosuke Honda High Energy Accelerator Research Organization JP Asia 1943 MC3.T02 Feng-lei Shang University of Science and Technology of China CN Asia MinKyu Seo Korea University Sejong Campus KR Asia 1175 MC3.A16 569Challenges and solutions for high-intensity beam operations in the J-PARC Linac 997Upgrade progress for the CSNS-II RCS MC4.A08 MC4.A17 Yong Ming-Yang Liu Huang High Energy Accelerator Research Organization Institute of High Energy Physics JP CN Asia Asia 1599Status of the proton linac for boron neutron capture therapy in the iBNCT project 439FAIR commissioning - Towards first science MC4.A08 MC4.A17 Masaharu Stephan Sato Reimann High Energy Accelerator Research Organization GSI Helmholtzzentrum f r Schwerionenforschung GmbH JP DE Asia Europe 1524Commissioning 1.7 MW, 1.3 GeV Beam for the Proton Power Upgrade at SNS 772Injection into resonance islands MC1.A17 MC4.A04 Nicholas Henry Evans Lovelace III Oak Ridge National Laboratory Brookhaven National Laboratory US US America America 9 MC3: TBD (Choose 5 from original 5 + KR 1 ) IPAC2025 SPC3 Yoichi Sato

864No parametric instabilities in actual linear accelerators except the envelope instability MC5.D08 Dong-O Jeon Institute for Basic Science KR Asia 926Empowering a broad and diverse community in beam dynamics simulations with Xsuite MC5.D11 Szymon Lopaciuk European Organization for Nuclear Research CH Europe 724Assessing the origin of the LHC beam halo MC5.D07 Milica Rakic Ecole Polytechnique F d rale de Lausanne CH Europe 949Coherent stability and dynamic aperture with strong space charge for the FAIR SIS100 synchrotron MC5.D05 Adrian Oeftiger John Adams Institute UK Europe 913Study on the eddy current distribution in the coating layer on the ceramic chamber of a nonlinear kicker MC5.D03 Hao-Wen Luo National Synchrotron Radiation Research Center TW Asia 658A module for fast auto differentiable simulations MC5.D11 Ji Qiang Lawrence Berkeley National Laboratory US America 1752Off-resonance scheme for highly coupled lattice design in the diffraction-limited light sources MC5.D01 Yihao Gong Shanghai Synchrotron Radiation Facility CN Asia 1144Comprehensive study of Robinson instability in active and passive higher harmonic cavities for bunch lengthening MC5.D05 Youngmin Park Pohang University of Science and Technology KR Asia 1496Dynamic dipole kick due to a rippling sextupole MC5.D03 Boris Podobedov Brookhaven National Laboratory US America 2078Development of non-invasive beam diagnostics by quantum optics-based detection MC6.T03 Shukui Zhang Thomas Jefferson National Accelerator Facility US America 514Measurement techniques using the electron beam profile scanner at the Fermilab Main Injector MC6.T03 Matilda Mwaniki Illinois Institute of Technology US America 1609Machine learning-based orbit correction in the RCS of CSNS MC6.D13 Xiaohan Lu Institute of High Energy Physics CN Asia 521Supersonic gas curtain-based in-vivo transverse beam profile monitoring for medical accelerators MC6.A28 Narender Kumar Cockcroft Institute UK Europe 1247Data-driven hysteresis compensation in the CERN SPS main magnets MC6.D13 Anton Lu European Organization for Nuclear Research CH Europe Experimental demonstration of transient-beam-loading compensation using new digital LLRF system at the Photon Factory storage ring 711 MC6.T05 Daichi Naito High Energy Accelerator Research Organization JP Asia 1055Development of an RFSoC-based low-level RF controller for an electron linac MC6.T27 Hirokazu Maesaka RIKEN SPring-8 Center JP Asia 681Evaluation of 3D-printed plastics for ultra-high vacuum applications: outgassing and residual gas analysis MC7.T14 Artur Domingues MAX IV Laboratory SE Europe 2063Further high power tests of the additive manufacturing IH-type cavity MC4.A08 Hendrik H hnel Goethe Universit t Frankfurt DE Europe 1148Nb3Sn cavity development based on vapor deposition method at KEK MC7.T07 Hayato Ito High Energy Accelerator Research Organization JP Asia 1434Cryogenic eficiency and sustainability aspects for particle accelerators & detectors MC7.T13 Antonio Perin European Organization for Nuclear Research CH Europe 763Active 3rd harmonic RF system for ALBA MC7.T06 Francis Perez ALBA-CELLS Synchrotron ES Europe 611Design and implementation of ridge waveguides for dual-mode microwave structure MC7.T06 Xiaoxia Huang Shanghai Synchrotron Radiation Facility CN Asia 1581Searches for RF breakdown precursors using Cherenkov light in optical fibers MC6.T03 Paarangat Pushkarna The University of Melbourne AU Asia 77920 years of CESR-B cavity operation at the CLS MC7.T07 Fr d ric Le Pimpec Canadian Light Source Inc. CA America 1360Geant4 modeling of field emission in SRF cavities MC7.T07 Sajini Wijethunga Fermi National Accelerator Laboratory US America 1983Commissioning of the South African Isotope Facility MC8.U04 Adriaan Barnard iThemba LABS ZA Europe 978High-level environmental sustainability guidelines for large accelerator facilities MC8.U11 Hannah Wakeling John Adams Institute UK Europe Engineering magnetic carbon nanotubes via swift heavy ion irradiation for spintronics and quantum technologies: XAS and RAMAN study 1232 MC8.U08 Priyal Singhal Panjab University IN Asia IPAC2025 SPC3 Yoichi Sato 10

MC3 2ndround list of recommended contributed-talks taking into account vote ranking and region balance 1st+2nd priority No. ID Trac k Speaker(Affili ation +country) Region Presentation Title Comments 1 1820 A22 Hai-En Tsai , LBNL, UAS America 10 GeV laser plasma acceleration and muon generation at BELLA PW 8+3 Achieved 10 GeV energy gain using hydrodynamic optical-field-ionized (HOFI) plasma channels,electron beams were used to generate muons 2 990 A15 Claudio Emma, SLAC. USA America Experimental generation of petawatt power, extreme electron beams in a particle accelerator 7+2 Experimental demonstration. 10 GeV, fs-duration, 0.1 MA, petawatt peak power electron beam. 3 1095 A22 Fern Pannell, University College London, UK (CERN) Europe First measurements of electron acceleration with plasma density steps at AWAKE 5+2 AWAKE demonstrated the self-modulation of the long proton bunch, and acceleration of electrons to 2 GeV. The first measurements of electron acceleration with plasma density step 4 698 T02 Vladimir Litvinenko Stony Brook U, USA America Revolution in generation of polarized electron beams: the world's first RF electron gun with GaAs photocathode 3+3 Successful operation of GaAs photocathode in superconducting RF gun 4 562 T02 Yosuke Honda, KEK, JapanTrack Asia Development of cold atom electron source in KEK 1+3 A ultra-low emittance electron source utilizing laser-cooled neutral gas as the photo- ionization source 5 1943 T02 Feng-lei Shang, USTC, China Asia Development of the sub- nanosecond grid-controlled electron source for Hefei Advanced Light Facility injector 0+1 An electron source could reach up to 1.1 A, with an FWHM reduced to 0.64 ns, and the beam stability at 10 pps was better than 1.6%. In MC3 3rdround, we discuss to improve country balance X 1175 A16 Asia Progress on experimental demonstration of high-power generation from 0.4 THz corrugated structure 0+1 Korea MinKyu EXPERIMENTAL RESULTS

MC3 2ndround list of recommended contributed-talks taking into account vote ranking and region balance MC3 3rdRound: TBD (Choose 5 from original 5 + KR 1 ) Will Increase 1 Asia and Drop 1 AM to improve Regional Balance? 1st+2nd priority No. ID Trac k Speaker(Affili ation +country) Region Presentation Title Comments #990 is the second priority in 2AMs (#1820, #990) 2 990 A15 Claudio Emma, SLAC. USA America Experimental generation of petawatt power, extreme electron beams in a particle accelerator VS 7+2 Experimental demonstration. 10 GeV, fs-duration, 0.1 MA, petawatt peak power electron beam. #1175 is a strong AS/Korean topic X 1175 A16 Asia Progress on experimental demonstration of high-power generation from 0.4 THz corrugated structure 0+1 Korean EXPERIMENTAL RESULTS MinKyu In 3rdRound, we heard supporting talks from #1175 NO-America-SPCs attended. Hongwei, Zonkai, Nicolas, Seun ghwan, Thapakron, MC3: Choose 1 from #990 & #1175 Homework (ver. 2025-01-17)

Proposals from: Yoichi Sato, Ming-Chyuan Lin (Asia), Peter McIntosh, Rogelio Tomas (Europe), Fulvia Pilat, Wolfram Fischer (Americas) SPC composition Coordinators (Asia) Deputies (America/Europe) MC Description 1 Colliders and Related Accelerators Jie Gao, IHEP Jie Wei, FRIB/MSU 2 Photon sources and electron accelerators Toru Hara, RIKEN/Spring-8 Nicolas Delerue, CNRS Enrica Chiadroni, La Sapienza 3 Novel particle sources and acceleration techniques Hong-Wei Zhao, IMP Hiroshi Imao, RIKEN/Nishina John Lewellen, LANL 4 Hadron accelerators Seunghwan Shin, Korea-4GSR/KBSI Rogelio Tomas, CERN 5 Beam dynamics and EM fields Thapakron Pulampong, SLRI Eliana Gianfelice-Wendt, FNAL 6 Beam instrumentation, controls, feedback and operational aspects Zong-Kai Liu, NSRRC Ralf Gebel, FZJ and GSI 7 Accelerator technology and sustainability Ceri Brenner, ANSTO Cameron Geddes, LBNL 8 Applications of accelerators and Engagement for Industry and Society Ex-officio Ming-Chuang Lin, NSRRC: OC Chair Yoichi Sato, KEK/J-PARC: SPC Chair Jui-Che Huang, NSRRC: LOC Chair David Button, ANSTO: Chief Editor Stella Su, NSRRC: Scientific Secretary (Not yet / Yoichi Sato): Industry session (Mika Masuzawa / Yoichi Sato): EQO session Huang-Hsiu Tsai, NSRRC: Student program Co-opted members

Select Session Chairs 22 chairs are needed. 16 SPC members are not enough to cover. Please check your schedule in the week of IPAC 25 TBD If possible Rogelio Tomas IPAC26 SPC chair OC Chair Ming-chuang Lin TBD MC5 SPC S. Shin? or OC? TBD MC5 SPC S. Shin? or OC? TBD MC3 SPC? TBD MC6 SPC? TBD MC7 SPC? or OC TBD OC? MC4 SPC H.Imao? MC4 SPC J. Lewellen ? or OC OC Tadashi Koseki SPC Chair Yoichi Sato TBD MC5 SPC S. Shin? or OC? TBD MC1 SPC? TBD MC6 SPC? TBD MC7 SPC? or OC TBD MC3 SPC? In SPC3, Some session chairs were already assigned Yoichi Sato Ming-chuang Lin MC2 SPC T. Hara TBD MC1 SPC? TBD MC7 SPC? or OC TBD MC8 SPC MC2 SPC N.Delerue Homework (ver. 2025-01-17) Let us know if you can join IPAC 25 in person Finalize Session Chairs TBD OC? MC1 MC2 MC3 MC4 MC5 MC6 MC7 MC8 Number of contributed talks 7 8 5 6 9 7 9 3 14 Contributed oral allocations for each MC are (total = 54),