Fundamental mode rf power dissipated in a waveguide attached to an accelerating cavity

Technical Report · Tue Feb 09 00:00:00 EST 1993

DOI:https://doi.org/10.2172/6562890· OSTI ID:6562890

Kang, Y W

An accelerating RF cavity usually requires accessory devices such as a tuner, a coupler, and a damper to perform properly. Since a device is attached to the wall of the cavity to have certain electrical coupling of the cavity field through the opening. RF power dissipation is involved. In a high power accelerating cavity, the RF power coupled and dissipated in the opening and in the device must be estimated to design a proper cooling system for the device. The single cell cavities of the APS storage ring will use the same accessories. These cavities are rotationally symmetric and the fields around the equator can be approximated with the fields of the cylindrical pillbox cavity. In the following, the coupled and dissipated fundamental mode RF power in a waveguide attached to a pillbox cavity is discussed. The waveguide configurations are (1) aperture-coupled cylindrical waveguide with matched load termination; (2) short-circuited cylindrical waveguide; and (3) E-probe or H-loop coupled coaxial waveguide. A short-circuited, one-wavelength coaxial structure is considered for the fundamental frequency rejection circuit of an H-loop damper.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6562890
• Report Number(s): ANL/ASD/RP-79396; ON: DE93011758
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
WAVEGUIDES
POWER DENSITY
APERTURES
CAVITY RESONATORS
POWER TRANSMISSION LINES
RF SYSTEMS
ELECTRONIC EQUIPMENT
EQUIPMENT
OPENINGS
RADIATION SOURCES
RESONATORS
SYNCHROTRON RADIATION SOURCES
430303* - Particle Accelerators- Experimental Facilities & Equipment