Frequency domain determination of the waveguide loaded Q for the SSCL drift tube linac

Author

Petillo, J. ; Krueger, W. ; Mondelli, A. ; Potter, J.

Author_Institution

Sci. Applications Int. Corp., McLean, VA, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

1004

Abstract

An important problem in the design of RF linacs is the coupling between the waveguide that feeds RF power into the accelerator and the cavity through which the beam is being accelerated. The designer needs to know the coupling coefficient, the frequency shift, and the external Q due to the waveguide. In addition, the details of the field geometry in the vicinity of the aperture are important in the design. The simulation code ARGUS has been employed in a collaboration between SAIC and AccSys Technology, Inc. To model the external Q of the drift tube linac (DTL) tanks in the injector of the Superconducting Super-Collider (SSC). (The drift tube linear accelerators are designed and built by AccSys Technology.) As the coupling aperture (iris) size and shape is changed, the coupling factor changes. This paper presents results of numerical simulations produced to aid in determining the optimum iris size for power coupling to the tank. A comparison of the simulation results will be made with results from experimental data

Keywords

beam handling equipment; cavity resonators; linear accelerators; proton accelerators; ARGUS; RF linacs; SSCL drift tube linac; Superconducting Super-Collider; coupling aperture; coupling coefficient; field geometry; frequency domain determination; frequency shift; iris; numerical simulations; waveguide loaded Q; Acceleration; Apertures; Feeds; Frequency domain analysis; Iris; Linear accelerators; Loaded waveguides; Optical coupling; Particle beams; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308702

Filename

308702