Search Results - PPPL

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Quench Protection of Superconducting Coils using Inductively Coupled Conductors

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: 6/2/2026 | Inventor(s): Yuhu Zhai, Michael Zarnstorff (retired)

Keywords(s): fusion

Category(s): Plasma/Fusion, Mechanical/Electrical Engineering

Method for Reinforcement, Quench Protection, and Stabilization of Large All-Metal Superconducting Magnets [PPPL No. M-1054]

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: 6/2/2026 | Inventor(s): Michael Zarnstorff (retired), Yuhu Zhai

Keywords(s): fusion

Category(s): Energy and CleanTech, Mechanical/Electrical Engineering, Plasma/Fusion

Variable Radii Bitter Spiral Crystal Spectrometer

Variable Radii Bitter Spiral Crystal Spectrometer Princeton Docket #22-3922-1 A novel high-resolution x-ray spectrometer for small or point-like emission sources has been developed using a crystal shape having both a variable major and minor radius of curvature. This variable-radii spiral spectrometer (VR-Spiral) allows five key spectrometer design...

Published: 5/28/2026 | Inventor(s): Novimir Pablant, Manfred Bitter, Kenneth Hill, Lan Gao, Frances Kraus, Philip Efthimion

Keywords(s): diagnostics

Category(s): Medical Devices/Diagnostics, Mechanical Engineering and Robotics

Permanent Magnet Stellarator Design

Novel Stellarator Design Princeton Docket # 21-3827 / 3821 / 3822 Procedure for Designing Arrays of Permanent Magnets PPPL inventors have developed a novel procedure for designing an array of magnets for confining stellarator plasmas using a small number of unique magnet parts. The parts consist of identically shaped cubes, each of which is polarized...

Published: 5/7/2026 | Inventor(s): David Gates, Caoxiang Zhu, Kenneth Hammond

Keywords(s): fusion

Category(s): Energy and CleanTech

Electrical Detector for Detecting Liquid Metal leaks

Princeton Docket # 15-3094-1 Researchers in the Department of Engineering at Princeton Plasma Physics Laboratory, Princeton University, have designed an electrical detector for detecting liquid metal leaks. Liquid metal has unique physical properties and many applications. For instance, liquid lithium is a candidate plasma facing component (PFC)...

Published: 4/23/2026 | Inventor(s): Jacob Schwartz, Michael Jaworski

Keywords(s): fusion

Category(s): Mechanical/Electrical Engineering

Self-Aligning Mirror Mechanism for Transmission Line Offset Correction

Princeton Docket # 16-3187Researchers at Princeton Plasma Physics Laboratory, Princeton University have designed a self-aligning mirror mechanism for transmission line offset correction. The self-aligning mechanism automatically adjusts mirrors to couple radiation between two or more offset waveguides or optical fibers. It is currently used to direct...

Published: 4/20/2026 | Inventor(s): Michael Gomez, Cara Bagley, Benjamin Tobias, Ali Zolfaghari, Alexandros Gerakis, Mary Demetillo

Keywords(s):

Category(s): Medical Devices/Diagnostics

Ironless Linear Induction Motor Actuator for Magnetic Field Environment

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: 4/14/2026 | Inventor(s): Andrei Khodak, Jiarong Fang

Keywords(s): fusion

Category(s): Mechanical/Electrical Engineering, Plasma/Fusion

Spheromak Gun for Inductive flux Injection

Spheromak Gun for Inductive flux Injection Princeton Docket # 22-3902 PPPL and a collaborator have proposed the formation of a high flux spheromak by an inductive flux injection coaxial gun. The basic approach of the scheme is based on a principle in which plasmas relax toward the minimum energy state during spheromak formation, independent of initial...

Published: 1/14/2026 | Inventor(s): Masaaki Yamada, Hiroshi Gota

Keywords(s): fusion

Category(s): Energy and CleanTech

Single-Torus-Liquid-Metal-Coil fusion device to obtain all stellarator and tokamak configurations

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: 12/22/2025 | Inventor(s): Egemen Kolemen, Francisco Saenz Castro, Dario Panici, Richard Majeski

Keywords(s): fusion

Category(s): Plasma/Fusion

Confocal Laser Induced fluorescence diagnostic with annular laser beam for large focal distances

Non-Confidential Brief Confocal Laser Induced Fluorescence Diagnostic With Annular Laser Beam for Large Focal Distances Princeton Docket # 23-4006-1 Laser induced fluorescence (LIF) is routinely used for characterization of plasma sources or in gas dynamic applications. Conventional LIF techniques require access to studied volume from two sides:...

Published: 10/17/2025 | Inventor(s): Yevgeny Raitses, Ivan Romadanov

Keywords(s): microelectronics

Category(s): Mechanical/Electrical Engineering

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