Observations of the PSR transverse instability

Conference · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.1109/PAC.1991.164814· OSTI ID:5659953

Colton, E ^[1]; Fitzgerald, D; Hardek, T; Macek, R J; Plum, M A; Thiessen, H A; Wang, T S ^[2]; Neuffer, D ^[3]

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1. USDOE, Washington, DC (USA)
2. Los Alamos National Lab., NM (USA)
3. Continuous Electron Beam Accelerator Facility, Newport News, VA (USA)

A fast instability with beam loss is observed in the Los Alamos Proton Storage Ring (PSR) when the injected beam current exceeds thresholds, with both bunched and unbunched beams. Large coherent transverse oscillations occur before and during beam loss. Recent observations of the instability indicate that it is an e-p''-type instability, driven by coupled oscillations due to electrons trapped within the proton beam. 5 refs., 3 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5659953
• Report Number(s): LA-UR-91-1502; CONF-910505-200; ON: DE91013647
• Resource Relation: Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
PROTON BEAMS
INSTABILITY
STORAGE RINGS
PARTICLE LOSSES
BEAM INJECTION
BEAM PROFILES
BEAMS
NUCLEON BEAMS
PARTICLE BEAMS
430400* - Particle Accelerators- Storage Rings
430200 - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics