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US PPPL Reconstructs 70-Year-Old Lawson Criterion, Proposes New Fusion Ignition Pathway of "Heat First, Fuel Later"

The Princeton Plasma Physics Laboratory (PPPL), under the U.S. Department of Energy (DOE), released its latest findings on October 5. Laboratory physicists have reconstructed the classic Lawson criterion that has been in use for over 70 years and published the results in Physical Review Letters. The research team integrated four real-world physics effects that were previously treated separately into a unified model, mapping out an entirely new fusion ignition topography. The study shows that adopting a pathway of first heating the plasma and then increasing fuel density can achieve the ignition conditions for self-sustaining burn with far less energy consumption than traditional pathways. For over 70 years, the nuclear fusion field has relied on...

2026-10-07

U.S. Department of Energy Extends Princeton University Contract to Operate PPPL

The U.S. Department of Energy (DOE) and Princeton University have extended the contract under which Princeton University manages and operates the Princeton Plasma Physics Laboratory (PPPL). The laboratory is located on Princeton University's Forrestal Campus in Plainsboro, New Jersey. Under the new extension, the contract will be renewed for five years starting April 1, 2027. Princeton University expects to strengthen collaboration with faculty and research teams on campus during the contract period, explore next-generation fusion energy research facilities, and enhance laboratory infrastructure and safety to support ongoing operational needs. Princeton University's office for research affairs...

2026-08-25

Princeton University and PPPL Launch Collaborative Graduate Program in Plasma Science and Technology

The Princeton Plasma Physics Laboratory (PPPL), a U.S. Department of Energy (DOE) facility, and Princeton University recently launched the Collaborative Research Program in Plasma Science and Technology (CRPST). This two-year program, which began on July 1, 2026, aims to establish a more formal joint mentorship mechanism and expand opportunities for Princeton University graduate students in engineering, physics, and related disciplines to participate in research at PPPL. Under the program, selected students will be jointly mentored by a PPPL scientist and a Princeton University faculty member. Students will work at PPPL at least one day per week, participate in relevant research groups, and use laboratory facilities to advance their projects...

2026-07-30