Wave transmission lines and networks – Miscellaneous – Multipactor applications
Reexamination Certificate
2006-06-20
2010-06-29
Cho, James (Department: 2819)
Wave transmission lines and networks
Miscellaneous
Multipactor applications
C033S227000, C315S505000, C505S210000
Reexamination Certificate
active
07746192
ABSTRACT:
Fabrication methods for contoured polyhedral cavities for particle acceleration are disclosed. The process may include: trimming flat sheets to a conformal shape; bending the sheets to form a contour that is axially curved and azimuthally flat; and joining the sheets to form a circumferentially polyhedral cavity that is configured to support a resonant electromagnetic field at cryogenic temperatures. The resulting cavity may have ductile or even brittle superconducting materials with an axially-oriented grain structure at each point on the circumference of the cavity. As part of the assembly process, the sheets may be bonded to a supporting substrate of thermally conductive material having integrated cooling passages. The supporting substrates may be configured to have electrical contact near the cavity openings while having a small gap near the equators of the cavity. Moreover, mode-coupling channels and waveguides may be provided to extract energy from undesired deflection modes.
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patent: 6883359 (2005-04-01), Hartwig, Jr.
patent: 7276708 (2007-10-01), Barov
Yinghua, Chen; Proch, D.; Sekutowicz, J.; The Slotted Cavity—a Method of Broadband Damping; XIV International Conference on High Energy Accelerators, Tsukuba, Japan; DESY M-89-20; Aug. 1989; pp. 9.
Cho James
Conley & Rose, P.C.
The Texas A&M University System
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