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Radio frequency focused interdigital linear accelerator

Patent ·
OSTI ID:1175897
;
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.
Research Organization:
Linac Systems, LLC, Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-03ER83835
Assignee:
Linac Systems, LLC (Albuquerque, NM)
Patent Number(s):
7,098,615
Application Number:
10/834,506
OSTI ID:
1175897
Country of Publication:
United States
Language:
English

References (12)

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conference January 2001
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Compact, inexpensive, epithermal neutron source for BNCT
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  • The fifteenth international conference on the application of accelerators in research and industry, AIP Conference Proceedings https://doi.org/10.1063/1.59096
conference January 1999
Focusing in Linear Ion Accelerators journal February 1955

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