Coordinators: Jie Gao (IHEP), Jie Wei (FRIB/MSU)

MC1 covers accelerators (e.g., synchrotrons, linacs, ERLs) and storage rings providing colliding beams of hadrons or leptons for particle and nuclear physics, including the associated Machine Detector Interface (MDI) region. This includes operating experience and performance limitations, upgrade plans, accelerator physics and technology issues specific to accelerators for particle and nuclear physics and the design and R&D for future projects.

Sub Classifications of MC1:

1. A01 Hadron Colliders
2. A02 Lepton Circular Colliders
3. A03 Linear Lepton Colliders
4. A04 Circular Accelerators and Storage Rings
5. A07 Electrostatic Accelerators
6. A08 Linear Accelerators
7. A09 Muon Accelerators, Neutrino Factories, Muon Colliders
8. A10 Damping Rings
9. A11 Beam Cooling
10. A12 Fixed Field Accelerators (FFAs)
11. A16 Advanced Concepts
12. A17 High Intensity Accelerators
13. A18 Energy Recovery Linacs (ERLs)
14. A19 Electron-Hadron Colliders
15. A20 Radioactive Ions
16. A25 Beyond Colliders
17. A26 Machine Detector Interface
18. T12 Beam Injection/Extraction and Transport
19. T19 Collimation

Coordinators: Toru Hara (RIKEN/SPring-8), Nicolas Delerue (CNRS)

MC2 covers photon sources (synchrotron light sources, ERLs, FELs, laser systems, THz sources, Compton sources, etc.) and electron accelerators (linear, circular, recirculating, etc.). It includes insertion devices such as planar and helical field undulators. Associated accelerator systems, such as injectors, booster synchrotrons, photon beam lines and photon beam line components can also be proposed for this classification.

Sub Classifications of MC2:

1. A04 Circular Accelerators
2. A05 Synchrotron Radiation Facilities
3. A06 Free Electron Lasers (FELs)
4. A07 Electrostatic Accelerators
5. A08 Linear Accelerators
6. A18 Energy Recovery Linacs (ERLs)
7. A23 Other Linac Based Photon Sources
8. A24 Accelerators and Storage Rings, Other
9. A25 THz sources
10. A26 Compton sources
11. T02 Electron Sources
12. T12 Beam Injection/Extraction and Transport
13. T15 Undulators and Wigglers
14. T25 Lasers
15. T26 Photon Beam Lines and Components

Coordinators: Hong-Wei Zhao (IMP), Enrica Chiadroni (La Sapienza)

MC3 covers (i) novel and unconventional sources of particles, including electrons and protons, neutrons, ions, and secondary particles and antiparticles; and (ii) new concepts of accelerating techniques which may overcome the present limitations of size and/or cost or which give access to very new beam characteristics (e.g., laser and beam driven plasma wakefield accelerators, structure wakefield accelerators, and ultra-high gradient accelerators). Novel here refers to technologies or parameters that are not yet widely used in operation.

1. A09 Muon Accelerators, Neutrino Factories, Muon Colliders
2. A12 Fixed Field Accelerators (FFAs)
3. A15 New Acceleration Concepts and Techniques
4. A16 Advanced Concepts
5. A17 High Intensity Accelerators
6. A20 Radioactive Ions
7. A21 Secondary Beams
8. A22 Plasma Wakefield Acceleration
9. T01 Proton and Ion Sources
10. T02 Electron Sources
11. T25 Lasers
12. T28 Neutron Sources

Coordinators: Hiroshi Imao (RIKEN/Nishina), John Lewellen (LANL)

MC4 covers design, development, construction, commissioning, operation and upgrades of low, medium and high energy hadron accelerators, excluding hadron colliders. This includes ion sources, electrostatic accelerators, proton and ion linear accelerators, proton and ion synchrotrons, radioactive beam facilities, antiproton accumulators and collectors, ion accumulators and storage rings, cyclotrons, synchrocyclotrons, FFAs and any other similar machines. Both low and high intensity machines are covered, as are all relevant aspects of high intensity fixed target accelerators such as proton or light ions drivers for neutron sources, neutrino factories, etc.

Sub Classifications of MC4:

1. A04 Circular Accelerators
2. A07 Electrostatic Accelerators
3. A08 Linear Accelerators
4. A09 Muon Accelerators, Neutrino Factories, Muon Colliders
5. A11 Beam Cooling
6. A12 Fixed Field Accelerators (FFAs)
7. A13 Cyclotrons
8. A14 Neutron Spallation Facilities
9. A16 Advanced Concepts
10. A17 High Intensity Accelerators
11. A20 Radioactive Ions
12. A21 Secondary Beams
13. A24 Accelerators and Storage Rings, Other
14. T01 Proton and Ion Sources
15. T12 Beam Injection/Extraction and Transport
16. T19 Collimation
17. T20 Targetry and Dumps
18. T28 Neutron Sources
19. T32 Ion Beam Stripping

Coordinators: Seunghwan Shin (POSTECH/PAL), Rogelio Tomas (CERN)

MC5 covers general aspects of electro-magnetic interactions of charged particle beams in accelerators and storage rings. This includes linear and nonlinear beam optics, modeling of externally applied or beam generated electro-magnetic fields, as well as theory, observations and simulations of single particle dynamics and collective effects, both coherent and incoherent. The emphasis is on deepening the understanding of fundamental processes or limitations governing beam dynamics and uncovering possible new mechanisms relevant to accelerator design and performance, independent of technological or project specific aspects.

Sub Classifications of MC5:

1. D01 Beam Optics Lattices, Correction Schemes, Transport
2. D02 Nonlinear Single Particle Dynamics Resonances, Tracking, Higher Order, Dynamic Aperture, Code Developments
3. D03 Calculations of EM fields Theory and Code Developments
4. D04 Beam Coupling Impedance Theory, Simulations, Measurements, Code Development
5. D05 Coherent and Incoherent Instabilities Theory, Simulations, Code Development
6. D06 Coherent and Incoherent Instabilities Measurements and Countermeasures
7. D07 High Intensity Circular Machines Space Charge, Halos
8. D08 High Intensity in Linear Accelerators Space Charge, Halos
9. D09 Emittance manipulation, Bunch Compression and Cooling
10. D10 Beam-Beam Effects Theory, Simulations, Measurements, Code Developments
11. D11 Code Developments and Simulation Techniques
12. D12 Electron Cloud and Trapped Ion Effects

Coordinators: Thapakron Pulampong (SLRI), Eliana Gianfelice-Wendt (FNAL)

MC6 covers measurement and control of the beam properties in particle accelerators including beam diagnostics and instrumentation, beam feedback systems, low level rf controls, timing and synchronization schemes and laser-based instrumentation for all types of accelerators. Included also are contributions to accelerator control systems, online modeling, and applications control software, as well as operational aspects of modern accelerators such as alignment and surveying methods, machine protection systems, radiation protection and monitoring, issues pertaining to reliability, and operability and applicable Artificial Intelligence and Advanced Computational Technology solutions.

Sub Classifications of MC6:

1. D13 Machine Learning
2. A28 Medical Applications
3. T03 Beam Diagnostics and Instrumentation
4. T04 Accelerator/Storage Ring Control Systems
5. T05 Beam Feedback Systems
6. T17 Alignment and Survey
7. T18 Radiation Monitoring and Safety
8. T22 Reliability, Operability
9. T23 Machine Protection
10. T24 Timing and Synchronization
11. T25 Lasers
12. T26 Photon Beam Lines and Components
13. T27 Low Level RF
14. T33 Online Modelling and Software Tools

Coordinators: Zong-Kai Liu (NSRRC), Ralf Gebel (FZJ/GSI)

MC7 covers design, construction, testing and performance of accelerator components or subsystems, with emphasis on technological aspects and methods. It includes radio frequency cavities, power sources and systems, magnets, vacuum, cryogenics, power supplies, superconductivity, collimators, targets, dumps, timing, lasers, and other accelerator components and subsystems. Enclosed are advanced technologies for accelerator component manufacturing, efficiency, sustainable production, operation and recycling. Contributions with emphasis on achieving beam performance specific to an accelerator type or design should generally be classified accordingly.

Sub Classifications of MC7:

1. T06 Normal Conducting RF
2. T07 Superconducting RF
3. T08 RF Power Sources
4. T09 Normal Conducting Magnets
5. T10 Superconducting Magnets
6. T11 Power Supplies
7. T13 Cryogenics
8. T14 Vacuum Technology
9. T15 Undulators and Wigglers
10. T16 Pulsed Power Technology
11. T19 Collimation
12. T20 Targetry and Dumps
13. T21 Infrastructures
14. T24 Timing and Synchronization
15. T25 Lasers
16. T31 Subsystems, Technology and Components, Other
17. T34 Permanent Magnets
18. T35 Advanced Manufacturing Technologies for Accelerator Components
19. T36 Sustainability
20. T37 Innovation Processes
21. T38 Mechanical design
22. T17 Alignment and Survey

Coordinators: Ceri Brenner (ANSTO), Cameron Geddes (LBNL)

MC8 emphasizes the broad scientific, societal, and industry applications of accelerators, e.g., for detection, characterization, testing, treatment, processing, and modification, that have impact across many fields and industry sectors. This MC also covers success stories and lessons learned for engagement activities including technology transfer and laboratory-industry collaborations, as well as outreach and communication for broad scientific dissemination.

Sub Classifications of MC8:

1. A28 Industrial Accelerators
2. U01 Health & Biology
3. U02 Materials Analysis and Modification
4. U03 Transmutation and Energy Production
5. U04 Isotope Production
6. U05 Security
7. U06 Environment
8. U07 Sustainability
9. U08 Radiation Effects
10. U09 Other Applications
11. U10 Technology Transfer and Lab Industry
12. U11 Outreach and Communications