A 3lambda/4 post coupler for drift-tube linacs

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6122387

Billen, J H; Garcia, J A; Potter, J M; Spalek, G

New permanent magnets for quadrupole focusing make possible smaller drift tubes in drift-tube linacs (DTLs), resulting in higher shunt impedance. However, ordinary post couplers cannot stabilize a DTL whose drift-tube-to-wall spacing exceeds one-quarter wavelength (lambda/4) by more than a few per cent for the accelerating mode frequency. We have built and tested post couplers that operate in the 3lambda/4 mode. These 3lambda/4 post couplers, when substituted for lambda/4 couplers, had similar stabilization properties. In addition, the coupling between post and drift tube, and the post's resonant frequency can be independently adjusted.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM
• OSTI ID: 6122387
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ACCELERATORS
BEAM FOCUSING MAGNETS
CLOSED CONFIGURATIONS
COUPLING
DRIFT TUBES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
LINEAR ACCELERATORS
MAGNETIC FIELD CONFIGURATIONS
MAGNETS
MULTIPOLAR CONFIGURATIONS
PERMANENT MAGNETS
QUADRUPOLAR CONFIGURATIONS
QUADRUPOLE LINACS
TUNING