Lithium-Core Diode Assembly for Symmetrical Pulsed Fusion
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Solution Overview
Problem
Existing z-pinch drivers require complex and time-consuming assembly of wire arrays for pulsed fusion events, leading to limited frequency and material limitations, resulting in asymmetrical plasmas and inefficiencies.
Innovation Solution
A diode assembly with an inner core of lithium compounds and an outer sheath of electrically conducting materials, such as copper or silver, arranged in a symmetrical configuration to enhance electrical conductance and minimize compression instabilities, allowing for rapid and repetitive fusion events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If wire arrays are carefully constructed to produce symmetrical plasma, then plasma symmetry is improved, but assembly time and device complexity increase significantly
Solution Approach 1:
The patent extracts the wire array from the diode assembly, replacing it with a solid outer sheath made of electrically conducting material. This eliminates the complex wire construction while maintaining the necessary electrical conductivity and plasma confinement functions through the sheath's simplified geometry.
Solution Approach 2:
The invention changes the physical state and geometry parameters from discrete wires to a continuous solid sheath. This parameter change simplifies the construction while maintaining plasma symmetry through the sheath's uniform, symmetrical geometry around the fuel element.
2Stability of the object's composition
If wire arrays are carefully constructed with high precision, then plasma symmetry is improved, but the frequency of pulsed fusion events decreases
Solution Approach 1:
By removing the wire array and replacing it with a solid outer sheath, the assembly time is dramatically reduced. This extraction of the complex wire construction enables faster preparation and higher frequency of pulsed fusion events while maintaining plasma symmetry through the sheath's uniform geometry.
3Reliability
If electrically conducting wires are used in the diode assembly, then electrical conductance is improved, but material selection is limited to tungsten and aluminum
Solution Approach 1:
The patent uses composite material construction with an inner core of lithium compound (providing fusion fuel) surrounded by an outer sheath of electrically conducting material (providing electrical conductivity). This composite structure allows independent optimization of each layer's material properties, enabling versatile material selection including copper, silver, and other conductive materials beyond the traditional wire array limitations.
4Stability of the object's composition
If a large number of wires are assembled in the diode assembly, then plasma symmetry is improved, but assembly time increases
Solution Approach 1:
The patent merges multiple discrete wires into a single continuous outer sheath structure. This consolidation maintains the symmetrical geometry necessary for plasma stability while dramatically reducing assembly time, as the sheath can be installed as a single component rather than requiring careful assembly of numerous individual wires.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The diode assembly enables efficient and frequent pulsed fusion events by reducing assembly time, minimizing Taylor instabilities, and expanding material options beyond tungsten and aluminum, thereby enhancing the potential applications of z-pinch technology.
Implementation Method 1
The electrically conducting outer sheath is disposed around the inner core and in a symmetrical relationship with the inner core. The majority of the voltage induced current must flow though the electrically conductive outer sheath
Implementation Method 2
The large voltage across the diode assembly produces very high temperature conditions that subsequently ionizes the material of the electrically conducting wires and produces the plasma
Implementation Method 3
A magnetic field around the plasma further induces a high current through the plasma, which generates a Lorentz force on the fuel element to compress the fuel element to fusion conditions
Implementation Method 4
A magnetic field around the plasma further induces a high current through the plasma, which generates a Lorentz force on the fuel element to compress the fuel element to fusion conditions
Implementation Method 5
Nuclear fusion occurs when the atomic nuclei of two or more light atoms collide to make a heavier atom. Following the collision, the total mass of the new atom is less than that of the two atoms that formed it, and the 'extra' mass is converted to energy according to the formula E=mc2
Data Source
AI summary
A diode assembly for producing a pulsed fusion event in a z-pinch driver. The diode assembly includes an inner core including a lithium compound formed of one or more lithium isotopes and one or more hydrogen isotopes. An electrically conducting outer sheath is disposed around the inner core. The electrically conducting outer sheath includes an electrical conductance that is at least three times greater than an electrical conductance of the lithium compound of the inner core.