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Title: Radio frequency focused interdigital linear accelerator

Abstract

An interdigital (Wideroe) linear accelerator employing drift tubes, and associated support stems that couple to both the longitudinal and support stem electromagnetic fields of the linac, creating rf quadrupole fields along the axis of the linac to provide transverse focusing for the particle beam. Each drift tube comprises two separate electrodes operating at different electrical potentials as determined by cavity rf fields. Each electrode supports two fingers, pointing towards the opposite end of the drift tube, forming a four-finger geometry that produces an rf quadrupole field distribution along its axis. The fundamental periodicity of the structure is equal to one half of the particle wavelength .beta..lamda., where .beta. is the particle velocity in units of the velocity of light and .lamda. is the free space wavelength of the rf. Particles are accelerated in the gaps between drift tubes. The particle beam is focused in regions inside the drift tubes.

Inventors:
;
Issue Date:
Research Org.:
Linac Systems, LLC, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175897
Patent Number(s):
7098615
Application Number:
10/834,506
Assignee:
Linac Systems, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
DOE Contract Number:  
FG02-03ER83835
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Swenson, Donald A., and Starling, W. Joel. Radio frequency focused interdigital linear accelerator. United States: N. p., 2006. Web.
Swenson, Donald A., & Starling, W. Joel. Radio frequency focused interdigital linear accelerator. United States.
Swenson, Donald A., and Starling, W. Joel. Tue . "Radio frequency focused interdigital linear accelerator". United States. https://www.osti.gov/servlets/purl/1175897.
@article{osti_1175897,
title = {Radio frequency focused interdigital linear accelerator},
author = {Swenson, Donald A. and Starling, W. Joel},
abstractNote = {An interdigital (Wideroe) linear accelerator employing drift tubes, and associated support stems that couple to both the longitudinal and support stem electromagnetic fields of the linac, creating rf quadrupole fields along the axis of the linac to provide transverse focusing for the particle beam. Each drift tube comprises two separate electrodes operating at different electrical potentials as determined by cavity rf fields. Each electrode supports two fingers, pointing towards the opposite end of the drift tube, forming a four-finger geometry that produces an rf quadrupole field distribution along its axis. The fundamental periodicity of the structure is equal to one half of the particle wavelength .beta..lamda., where .beta. is the particle velocity in units of the velocity of light and .lamda. is the free space wavelength of the rf. Particles are accelerated in the gaps between drift tubes. The particle beam is focused in regions inside the drift tubes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {8}
}

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Works referenced in this record:

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