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Achieving high nuclear spin polarization in molecules is critical for enhancing the efficiency of nuclear fusion reactors and significantly boosting signals in nuclear magnetic resonance (NMR) and medical imaging. However, existing methods face substantial limitations in meeting the demand for large quantities of highly polarized molecules. Conventional...
Published: 7/29/2025
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Inventor(s): Ahmed Diallo, Jason Parisi, Theodore Rakitzis, Chrysovalantis Kannis
Keywords(s): fusion
Category(s): Plasma/Fusion
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Fusion reaction rates and the angular distribution of emitted products, such as neutrons and alpha particles, are significantly influenced by the spin states of the fuel nuclei, including deuterium, tritium, and helium-3. While the selective preparation of nuclei in specific spin states can enhance fusion reaction rates, this typically results in anisotropic...
Published: 9/10/2025
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Inventor(s): Jacob Schwartz
Keywords(s):
Category(s): Plasma/Fusion
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Magnetic confinement fusion power plants face a fundamental challenge in efficiently utilizing tritium fuel, a critical and limited resource. While increasing tritium burn efficiency (TBE)—the fraction of injected tritium that fuses—is desirable for fuel self-sufficiency and reducing inventory, existing approaches encounter an inherent trade-off:...
Published: 7/28/2025
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Inventor(s): Jason Parisi, Ahmed Diallo, Jacob Schwartz
Keywords(s): fusion
Category(s): Plasma/Fusion
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Non-Confidential Brief
Segmented Planar Stellarator Coils
Princeton Docket # 25-4189-1
Researchers at the Princeton Plasma Physics Laboratory propose a novel configuration of stellarator fusion reactor coils. Traditional stellarator coils incorporate a complex, non-planar design in order to magnetically confine the plasma in a specified equilibrium....
Published: 9/18/2025
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Inventor(s): Egemen Kolemen, Kian Orr, Dario Panici
Keywords(s): engineering, fusion, fusion - stellarators
Category(s): Plasma/Fusion
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Non-Confidential Brief
Single-Torus-Liquid-Metal-Coil Fusion Device to Obtain All Stellarator and Tokamak Configurations
Princeton Docket # 24-4079-1
Researchers at the Princeton Plasma Physics Laboratory (PPPL) have proposed a method for the design of fusion devices (tokamaks and stellarators) that achieve magnetic confinement of plasmas with...
Published: 8/20/2024
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Inventor(s): Egemen Kolemen, Francisco Saenz Castro, Dario Panici, Richard Majeski
Keywords(s): fusion
Category(s): Plasma/Fusion
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Quench Protection of Superconducting Coils using Inductively Coupled Conductors
Princeton Docket # 24-4076-1
Inventors at PPPL have conceived an invention focused on the protection of high-temperature superconducting (HTS) electromagnets. The innovation hinges on an integrated design method that employs inductively coupled normal-conducting elements...
Published: 11/17/2025
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Inventor(s): Yuhu Zhai, Michael Zarnstorff (retired)
Keywords(s): fusion
Category(s): Plasma/Fusion, Mechanical/Electrical Engineering
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Non-Confidential Brief
Ironless Linear Induction Motor Actuator for Magnetic Field Environment
Princeton Docket # 23-3984-1
Researchers at the Princeton Plasma Physics Laboratory have proposed an invention that allows use of a linear induction motor in the presence of a strong magnetic field. Standard electric motors and actuators will not work in...
Published: 1/21/2025
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Inventor(s): Andrei Khodak, Jiarong Fang
Keywords(s): fusion
Category(s): Mechanical/Electrical Engineering, Plasma/Fusion
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Non-Confidential Brief
Method for Reinforcement, Quench Protection, and Stabilization of Large All-Metal Superconducting Magnets
Princeton Docket # 24-4066-1
Inventors at the Princeton Plasma Physics Laboratory (PPPL) have developed a novel technology with significant advantages in the design and protection of high temperature superconducting (HTS)...
Published: 6/11/2024
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Inventor(s): Michael Zarnstorff, Yuhu Zhai
Keywords(s): fusion
Category(s): Energy and CleanTech, Mechanical/Electrical Engineering, Plasma/Fusion
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