Superconducting cavities for the APT accelerator

Conference · Wed Oct 01 04:00:00 EDT 1997

OSTI ID:532544

Krawczyk, F L; Gentzlinger, R C; Haynes, B; Montoya, D I; Rusnak, B; Shapiro, A H

The design of an Accelerator Production of Tritium (APT) facility being investigated at Los Alamos includes a linear accelerator using superconducting rf-cavities for the acceleration of a high-current cw proton beam. For electron accelerators with particles moving at the speed of light ({beta} {approx} 1.0), resonators with a rounded shape, consisting of ellipsoidal and cylindrical sections, are well established. They are referred to as elliptical cavities. For the APT-design, this shape has been adapted for much slower proton beams with {beta} ranging from 0.60 to 0.94. This is a new energy range, in which resonators of an elliptical type have never been used before. Simulations with the well-proven electromagnetic modeling tools MAFIA and SUPERFISH were performed. The structures have been optimized for their rf and mechanical properties as well as for beam dynamics requirements. The TRAK-RF simulation code is used to investigate potential multipacting in these structures. All the simulations will be put to a final test in experiments performed on single cell cavities that have started in the structures laboratory.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 532544
• Report Number(s): LA-UR--97-1700; CONF-970503--224; ON: DE97008192
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
COMPUTERIZED SIMULATION
DESIGN
LINEAR ACCELERATORS
PERFORMANCE
RF SYSTEMS
SUPERCONDUCTING CAVITY RESONATORS