Transverse wakefield control and feedback in the SLC (SLAC Linear Collider) linear

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6290479

Seeman, J T; Campisi, I E; Herrmannsfeldt, W; Lee, M; Petersen, A; Phinney, N; Ross, M; Abrams, G S; Adolphsen, C; Soderstrom, E

Transverse wakefields in the linac of the SLAC Linear Collider (SLC) have been observed to enlarge the effective emittance of beams which are not properly centered in the accelerating structure. A fast feedback system has been constructed to minimize the enlargement under changing conditions by controlling the beam launching parameters. Theoretical aspects of this transverse feedback system are reviewed as well as the design of the beam sensors, launch controllers, communication equipment and data processing micro-computer. A variety of beam observations have been made. They show that dispersion as well as wakefield effects are important. In the near future the fast transverse feedback system will be beam tested, and algorithms tailored to the noise environment of the SLC will be tried.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA); Lawrence Berkeley Lab., CA (USA); California Univ., Santa Cruz (USA); California Inst. of Tech., Pasadena (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6290479
• Report Number(s): SLAC-PUB-4182; CONF-870302-207; ON: DE87011588
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATOR FACILITIES
ACCELERATORS
BEAM DYNAMICS
BEAM EMITTANCE
BEAM MONITORS
BEAM POSITION
BEAM PROFILES
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
FEEDBACK
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
MONITORS
STANFORD LINEAR COLLIDER