Design of HOM coupler prototype for the APT superconducting RF cavities

Conference · Mon Jan 01 04:00:00 EST 2001

DOI:https://doi.org/10.1109/PAC.2001.986587· OSTI ID:975358

Kuzminski, J ^[1]; Spalek, G ^[2]; Bourque, R F ^[3]

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1. Jozef
2. George
3. Robert F.

Beam dynamics calculations for the Accelerator Production of Tritium (APT) proton linac suggest that wakefields, which are excited during beam operation, would not lead to beam-breakup instabilities. However, in the superconducting (SC) radio-frequency (RF) cavities of the APT linac, higher-order modes (HOMs), whose frequencies are below the beam tube cut-off fiequency, can be sufficiently excited by the beam to add significantly to the heat load removed by the helium refrigerator. In this paper, we present a design of an HOM coupler for the APT RF cavities that will remove this power to a resistive load at room temperature.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975358
• Report Number(s): LA-UR-01-2974
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BEAM DYNAMICS
CAVITIES
DESIGN
HELIUM
LINEAR ACCELERATORS
PRODUCTION
PROTONS
TRITIUM