Electric lamp and discharge devices: systems – High energy particle accelerator tube – Magnetic field acceleration means
Patent
1993-08-02
1995-06-06
O'Shea, Sandra L.
Electric lamp and discharge devices: systems
High energy particle accelerator tube
Magnetic field acceleration means
315 541, 315 542, H01J 2300
Patent
active
054225493
ABSTRACT:
A superconducting radio frequency quadrupole (RFQ) device includes four spaced elongated, linear, tubular rods disposed parallel to a charged particle beam axis, with each rod supported by two spaced tubular posts oriented radially with respect to the beam axis. The rod and post geometry of the device has four-fold rotation symmetry, lowers the frequency of the quadrupole mode below that of the dipole mode, and provides large dipole-quadrupole mode isolation to accommodate a range of mechanical tolerances. The simplicity of the geometry of the structure, which can be formed by joining eight simple T-sections, provides a high degree of mechanical stability, is insensitive to mechanical displacement, and is particularly adapted for fabrication with superconducting materials such as niobium.
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Development of the Different RFQ Accelerating Structures and Operation Experience, H. Klein, pp. 3313-3322, IEEE Transactions on Nuclear Science, vol. NS-30, No. 4, Aug., 1983.
Delayen Jean R.
Shepard Kenneth W.
O'Shea Sandra L.
Patel Vip
The University of Chicago
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