Hom-damped Supra-Conductive Cavity Resonator, Use of Same and Method for Generation of Same

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a new type of superconducting cavity resonator for particle accelerators that is specifically designed to dampen higher-order electromagnetic modes (HOMs), which can otherwise disrupt particle acceleration. The invention uses a controlled increase of surface resistance at precise locations inside the cavity, achieved by applying a localized external magnetic field through a coil during the cooling process. This method selectively increases dissipation for unwanted HOMs, while minimally affecting the desired acceleration mode, thereby stabilizing the accelerator's operation.

Use CasesContent extracted from patent full text and abstract with AI.

• Particle accelerators such as linear accelerators (LINACs) and synchrotrons for research in physics and materials science.
• Medical particle accelerators used in cancer therapy (e.g., proton therapy).
• Industrial accelerators for materials processing or imaging.
• Free-electron lasers, such as those used in advanced light sources for research.
• High-energy physics experiments at large research facilities.

BenefitsContent extracted from patent full text and abstract with AI.

• Improved suppression of unwanted higher-order modes, leading to more stable and efficient particle acceleration.
• No need to introduce foreign objects or connections into the cavity, preserving the ideal resonator design and reducing contamination risks.
• The damping effect is tunable and can be localized to specific sites, making it highly customizable and adaptable for different resonator geometries and modes.
• The method is reversible and does not require permanent modifications or welding, simplifying maintenance and reconfiguration.
• Can be applied to a wide range of superconducting resonator types and accelerator designs, increasing versatility.

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Patent Abstract

The invention relates to a HOM-damped, supra-conductive cavity resonator, such as one used in systems for accelerating electrically charged particles to accelerate the particles, and a method for the creation of said cavity resonator. The HOM-damped cavity resonator according to the invention has at least one supra-conductive cavity resonator. Said supra-conductive cavity resonator, for its part, has at least one point on the inner resonator surface on which there is a higher surface resistance. The at least one point of higher surface resistance is caused by a supra-conductive or normally conductive coil with or without ferritic yoke, which coil is arranged on the at least one point at an outer surface of the cavity resonator, and wherein the at least one point is determined by a location of higher field strengths of one or more modes to be damped.