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Princeton Lab Completes LHD Project, Releases 27 Years of Data

3/29/2026

Summary

Story summary

The Princeton Plasma Physics Laboratory has concluded a major project on Japan's Large Helical Device (LHD), operational since 1998.
Collaboration with National Institute for Fusion Science (NIFS) shows stellarators are a viable path to fusion energy.
With LHD's final campaign complete, NIFS has released 27 years of data for analysis.
The Princeton Plasma Physics Laboratory physicist Robert Lunsford says the data will help improve stellarator design and future fusion projects.

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Story summary

The Princeton Plasma Physics Laboratory has concluded a major project on Japan's Large Helical Device (LHD), operational since 1998.
Collaboration with National Institute for Fusion Science (NIFS) shows stellarators are a viable path to fusion energy.
With LHD's final campaign complete, NIFS has released 27 years of data for analysis.
The Princeton Plasma Physics Laboratory physicist Robert Lunsford says the data will help improve stellarator design and future fusion projects.