High-Energy Ion Linacs Based on Spoke Cavities
Journal Article
·
OSTI ID:811817
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 4.5 K, and increased longitudinal acceptance. Application to the proposed RIA driver linac is discussed in detail.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 811817
- Report Number(s):
- JLAB-ACP-03-03; DOE/ER/40150-2509
- Country of Publication:
- United States
- Language:
- English
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