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Title: Coupled-cavity drift-tube linac

A coupled-cavity drift-tube linac (CCDTL) combines features of the Alvarez drift-tube linac (DTL) and the {pi}-mode coupled-cavity linac (CCL). In one embodiment, each accelerating cavity is a two-cell, 0-mode DTL. The center-to-center distance between accelerating gaps is {beta}{lambda}, where {lambda} is the free-space wavelength of the resonant mode. Adjacent accelerating cavities have oppositely directed electric fields, alternating in phase by 180 degrees. The chain of cavities operates in a {pi}/2 structure mode so the coupling cavities are nominally unexcited. The CCDTL configuration provides an rf structure with high shunt impedance for intermediate velocity charged particles, i.e., particles with energies in the 20-200 MeV range. 5 figs.
Inventors:
Issue Date:
OSTI Identifier:
403662
Assignee:
Univ. of California, Alameda, CA (United States) PTO; SCA: 430100; PA: EDB-97:004248; SN: 96001695579
Patent Number(s):
US 5,578,909/A/
Application Number:
PAN: 8-275,865; TRN: 97:000139
Contract Number:
W-7405-ENG-36
Resource Relation:
Other Information: PBD: 26 Nov 1996
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; LINEAR ACCELERATORS; DESIGN; DRIFT TUBES; CAVITY RESONATORS; RF SYSTEMS