Strong-strong simulation on the beam-beam effect in a linac-ring [ital B] factory
- Continuous Electron Beam Accelerator Facility, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States)
Since the inherently low emittance required by the linac-ring [ital B] factory implies high disruption for the linac bunch, previous investigations of the beam-beam tune-shift limit may not apply. A strong-strong simulation scheme was developed based on a macroparticle model to simulate beam-beam interaction in this situation self-consistently. Included in the ring dynamics are linear betatron oscillations and synchrotron motion, as well as transverse and longitudinal damping and quantum excitation. As a benchmarking test, the coherent quadrupole effect in a ring-ring collider was observed by the simulation. The code was then used to study the stability of the storage-ring bunch in a linac-ring collider and yielded strong synchrobetatron coupling due to the deep envelope modulation of the linac bunch. It was, however, observed that when initial conditions for the linac beam were properly chosen to match the focusing provided by the ring beam at IP, the beam-beam tune-shift limit of the ring beam can be comparable to that of a ring-ring collider.
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 5948817
- Journal Information:
- Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Vol. 48:5; ISSN 1063-651X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRON-POSITRON COLLISIONS
SIMULATION
STORAGE RINGS
BEAM-BEAM INTERACTIONS
BETATRON OSCILLATIONS
COLLIDING BEAMS
PARTICLE BEAMS
QUADRUPOLE LINACS
STABILITY
ACCELERATORS
BEAM DYNAMICS
BEAMS
COLLISIONS
ELECTRON COLLISIONS
LINEAR ACCELERATORS
OSCILLATIONS
POSITRON COLLISIONS
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics
430400 - Particle Accelerators- Storage Rings