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The National Spherical Torus Experiment (NSTX), which is undergoing a $94 million upgrade that will make it the most powerful experimental fusion facility, or tokamak, of its type in the world when work is completed in 2015. Experiments will test the ability of the upgraded spherical facility to maintain a high-performance plasma under conditions of extreme heat and power. Results could strongly influence the design of future fusion reactors.

PPPL researchers successfully test new device that analyzes the surfaces of tokamak components within a vacuum

Physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have successfully tested a new device that will lead to a better understanding of the interactions between ultrahot plasma contained within fusion facilities and the materials inside those facilities. The measurement tool, known as the Materials Analysis Particle Probe (MAPP), was built by a consortium that includes Princeton University and the University of Illinois at Urbana-Champaign (U. of I.). 

PPPL researchers successfully test new device that analyzes the surfaces of tokamak components within a vacuum

Physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have successfully tested a new device that will lead to a better understanding of the interactions between ultrahot plasma contained within fusion facilities and the materials inside those facilities. The measurement tool, known as the Materials Analysis Particle Probe (MAPP), was built by a consortium that includes Princeton University and the University of Illinois at Urbana-Champaign (U. of I.).

Major next steps proposed for development of fusion energy based on the spherical tokamak design

Among the top puzzles in the development of fusion energy is the best shape for the magnetic facility — or “bottle” — that will provide the next steps in the development of fusion reactors. Leading candidates include spherical tokamaks, compact machines that are shaped like cored apples, compared with the doughnut-like shape of conventional tokamaks.  The spherical design produces high-pressure plasmas — essential ingredients for fusion reactions — with relatively low and cost-effective magnetic fields.

PPPL wins contract for plasma-materials interaction studies on EAST tokamak

The U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has been named principal investigator for a multi-institutional project to study plasma-materials interaction (PMI) on the Experimental Advanced Superconducting Tokamak (EAST) in China. The centerpiece of the PPPL role in this project is the optimization of lithium delivery systems. The tests will be designed to optimize the production of long-pulse plasmas that last from 30 seconds to more than one minute.

PPPL wins contract for plasma-materials interaction studies on EAST tokamak

The U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has been named principal investigator for a multi-institutional project to study plasma-materials interaction (PMI) on the Experimental Advanced Superconducting Tokamak (EAST) in China. The centerpiece of the PPPL role in this project is the optimization of lithium delivery systems. The tests will be designed to optimize the production of long-pulse plasmas that last from 30 seconds to more than one minute. This project is supported by Fusion Energy Sciences in the DOE Office of Science.

New books by PPPL physicists Hutch Neilson and Amitava Bhattacharjee highlight magnetic fusion energy and plasma physics

Magnetic fusion energy and the plasma physics that underlies it are the topics of ambitious new books by Hutch Neilson, head of the Advanced Projects Department at PPPL, and Amitava Bhattacharjee, head of the Theory Department at the Laboratory. The books describe where research on magnetic fusion energy comes from and where it is going, and provide a basic understanding of the physics of plasma, the fourth state of matter that makes up 99 percent of the visible universe.

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Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.

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