Coupled-cavity drift-tube linac

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870705

Billen, James H ^[1]

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1. Los Alamos, NM

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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Regents of Univ. of California (Alameda, CA)
• Patent Number(s): US 5578909
• OSTI ID: 870705
• Country of Publication: United States
• Language: English

Related Subjects

coupled-cavity
drift-tube
linac
ccdtl
combines
features
alvarez
dtl
-mode
ccl
embodiment
accelerating
cavity
two-cell
0-mode
center-to-center
distance
gaps
beta
lambda
free-space
wavelength
resonant
mode
adjacent
cavities
oppositely
directed
electric
fields
alternating
phase
180
degrees
chain
operates
structure
coupling
nominally
unexcited
configuration
provides
rf
shunt
impedance
intermediate
velocity
charged
particles
energies
20-200
mev
range
oppositely directed
configuration provides
charged particles
electric field
charged particle
electric fields
accelerating cavities
accelerating cavity
accelerating gaps
accelerating gap
resonant mode
mev range
drift-tube linac
coupled-cavity drift-tube
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