An RF feedthrough has an electrically insulative cone that is hollow having first and second openings at first and second ends having first and second diameters. The first diameter is larger than the second diameter, defining a tapered sidewall of the cone to an inflection point. A stem is coupled to the second end of the cone, and passes through the first opening and second opening. A flange is coupled to the first end of the cone and has a flange opening having a third diameter. The third diameter is smaller than the first diameter. The stem passes through the flange opening without contacting the flange. The flange couples the cone to a chamber wall hole. Contact portions of the cone may be metallized. The cone and flange pass the stem through the hole while electrically insulating the stem from the wall of the chamber.

An RF feedthrough has an electrically insulative cone that is hollow having first and second openings at first and second ends having first and second diameters. The first diameter is larger than the second diameter, defining a tapered sidewall of the cone to an inflection point. A stem is coupled to the second end of the cone, and passes through the first opening and second opening. A flange is coupled to the first end of the cone and has a flange opening having a third diameter. The third diameter is smaller than the first diameter. The stem passes through the flange opening without contacting the flange. The flange couples the cone to a chamber wall hole. Contact portions of the cone may be metallized. The cone and flange pass the stem through the hole while electrically insulating the stem from the wall of the chamber.

This invention produces electricity, gamma rays, or neutrons, based on the findings set forth in A Nuclear-Gravitational Electrodynamic Framework, Boltzmann's P=e.sup.S/k probability principle, Maxwell's EM theory, Relativity, and Quantum Theory, to optimize protons' pion-electron interactions. Functionally this is like what occurs in Chemical Thermodynamics, using external conditions to control 10.sup.10 m orbital electron interactions to rearrange molecules and obtain desired products, except that this process controls 10.sup.15 m pion-electron interactions by creating an equilibrium between external EM conditions and protons' internal components to control the protons' pion generation.

This invention produces electricity, gamma rays, or neutrons, based on the findings set forth in A Nuclear-Gravitational Electrodynamic Framework, Boltzmann's P=e.sup.S/k probability principle, Maxwell's EM theory, Relativity, and Quantum Theory, to optimize protons' pion-electron interactions. Functionally this is like what occurs in Chemical Thermodynamics, using external conditions to control 10.sup.10 m orbital electron interactions to rearrange molecules and obtain desired products, except that this process controls 10.sup.15 m pion-electron interactions by creating an equilibrium between external EM conditions and protons' internal components to control the protons' pion generation.

An RF feedthrough has an electrically insulative cone that is hollow having first and second openings at first and second ends having first and second diameters. The first diameter is larger than the second diameter, defining a tapered sidewall of the cone to an inflection point. A stem is coupled to the second end of the cone, and passes through the first opening and second opening. A flange is coupled to the first end of the cone and has a flange opening having a third diameter. The third diameter is smaller than the first diameter. The stem passes through the flange opening without contacting the flange. The flange couples the cone to a chamber wall hole. Contact portions of the cone may be metallized. The cone and flange pass the stem through the hole while electrically insulating the stem from the wall of the chamber.