Production of high intensity electron bunches for the SLAC Linear Collider

Technical Report · Sat Aug 01 04:00:00 EDT 1987

DOI:https://doi.org/10.2172/5911088· OSTI ID:5911088

James, M B

This thesis describes the design and performance of a high intensity electron injecfor for the SLAC Linear Collider. Motivation for the collider and the specifications for the injector are discussed. An analytic theory of the bunching and capture of electrons by rf fields is discussed in the limit of low space charge and small signal. The design and performance of SLAC's main injector are described to illustrate a successful application of this theory. The bunching and capture of electrons by rf fields are then discussed in the limit of high space charge and large signal, and a description of the design of the collider injector follows. In the limit of high space charge forces and large rf signals, the beam dynamics are considerably more complex and numerical simulations are required to predict particle motion. A computer code which models the longitudinal dynamics of electrons in the presence of space charge and rf fields is described. The results of the simulations, the resulting collider injector design and the various components which make up the collider injector are described. These include the gun, subharmonic bunchers, traveling-wave buncher and velocity-of-light accelerator section. Finally, the performance of the injector is described including the beam intensity, bunch length, transverse emittance and energy spectrum. While the final operating conditions differ somewaht from the design, the performance of the collider injector is in good agreement with the numerical simulations and meets all of the collider specifications. 28 refs.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 5911088
• Report Number(s): SLAC-319; ON: DE88001331
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430302* -- Particle Accelerators-- Injection & Extraction Systems
ACCELERATOR FACILITIES
ACCELERATORS
BEAM BUNCHERS
BEAM BUNCHING
BEAM DYNAMICS
BEAM EMITTANCE
BEAM INJECTION
BEAM PRODUCTION
BEAMS
CHARGE DENSITY
COMPUTERIZED SIMULATION
DESIGN
ELECTRON BEAMS
ENERGY
KINETIC ENERGY
LEPTON BEAMS
LINEAR ACCELERATORS
MAGNETIC FIELDS
MATHEMATICAL SPACE
PARTICLE BEAMS
PERFORMANCE
PHASE SPACE
RF SYSTEMS
SIMULATION
SPACE
SPACE CHARGE
STANFORD LINEAR COLLIDER