High energy ion linacs based on superconducting spoke cavities.

Journal Article · Fri Aug 01 04:00:00 EDT 2003 · Phys. Rev. ST Accel. Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.6.080101· OSTI ID:961363

Shepard, K W; Ostroumov, P N; Delayen, J R

The applicability of superconducting TEM-class spoke cavities to high-energy ion linacs is discussed, and detailed designs for two TEM-class, triple-spoke-loaded superconducting niobium resonant cavities are presented. The 345 MHz cavities have a velocity range of 0.4<{beta}<0.75 and a beam aperture of 4 cm. Spoke-loaded cavities offer several advantages compared with the higher-frequency elliptical-cell cavities that are currently being developed for this range of particle velocities. The proposed triple-spoke cavities can provide broader velocity acceptance, more accelerating voltage per cavity, reduced heat-load operation at 4.2 K, and increased longitudinal acceptance through the high-energy section. Application to the proposed U.S. rare-isotope accelerator driver linac is discussed in detail.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 961363
• Report Number(s): ANL/PHY/JA-47128
• Journal Information: Phys. Rev. ST Accel. Beams, Journal Name: Phys. Rev. ST Accel. Beams Journal Issue: 8 ; Aug. 2003 Vol. 6; ISSN 1098-4402
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
APERTURES
BEAMS
CAVITY RESONATORS
ELECTRIC POTENTIAL
ENERGY
IONS
LINEAR ACCELERATORS
NIOBIUM
PARTICLES
RANGE
SUPERCONDUCTIVITY
USES
VELOCITY