{"id":6390,"date":"2026-07-16T18:45:00","date_gmt":"2026-07-16T23:45:00","guid":{"rendered":"https:\/\/okdiario.com\/techy\/en\/?p=6390"},"modified":"2026-07-15T18:31:50","modified_gmt":"2026-07-15T23:31:50","slug":"a-canadian-fusion-machine-just-tripled-its-plasma-temperature-to-8-4-millionc-by-crushing-it-and-the-method-is-not-what-reactors-usually-use","status":"publish","type":"post","link":"https:\/\/okdiario.com\/techy\/en\/a-canadian-fusion-machine-just-tripled-its-plasma-temperature-to-8-4-millionc-by-crushing-it-and-the-method-is-not-what-reactors-usually-use\/6390\/","title":{"rendered":"A Canadian fusion machine just tripled its plasma temperature to 8.4 million\u00b0C by crushing it, and the method is not what reactors usually use"},"content":{"rendered":"\n

Clean fusion power has always sounded almost too good to be true. A machine that copies the energy process of the stars, produces steady electricity, and avoids planet-warming emissions? For decades, that promise has lived just over the horizon.<\/p>\n\n\n\n

Now, a Canadian company says it has taken a meaningful step toward making that horizon a little less distant. General Fusion reported that its LM26 machine heated plasma<\/a> to about 15.1 million\u00b0F, more than tripling the electron temperature through mechanical compression rather than giant lasers or massive superconducting magnets.<\/p>\n\n\n\n

A machine that squeezes plasma<\/h2>\n\n\n\n

General Fusion\u2019s approach is called Magnetized Target Fusion, or MTF. Essentially, LM26 forms a magnetized deuterium plasma, using a heavy form of hydrogen, and then squeezes it with an imploding solid lithium liner.<\/p>\n\n\n\n

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Also Read: An American company is inviting outside scientists to test its 5-megawatt fusion engine, and the stakes for clean power are huge<\/a><\/h4>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

That may sound like science fiction, but the basic idea is surprisingly physical. Instead of relying on laser blasts or the enormous magnetic cages used in tokamak projects<\/a>, this system tries to heat and densify plasma by compressing it.<\/p>\n\n\n\n

LM26 has been operating since 2025, according to the company. General Fusion describes it as the first MTF demonstration machine built at a commercially relevant scale, with a diameter about half that of a future commercial plant based on its current design assumptions.<\/p>\n\n\n\n

Why this heat matters<\/h2>\n\n\n\n

The key number is 0.72 kiloelectronvolts, which equals about 15.1 million\u00b0F. That is still below General Fusion\u2019s next target of 1 kiloelectronvolt, or about 18 million\u00b0F, but it is a clear jump from where the plasma started.<\/p>\n\n\n\n

The company says the result was confirmed by several diagnostic systems, including Thomson scattering and Absolute Extreme Ultraviolet measurements. It also reported roughly tenfold increases in plasma density and poloidal magnetic field strength during compression.<\/p>\n\n\n\n

Even more interesting, researchers observed an increase in neutron yield<\/a> during compression. That suggests fusion reactions were occurring inside the plasma, although the company is careful to say the experiment did not produce net energy.<\/p>\n\n\n\n

\"The
By using a solid lithium liner to mechanically compress plasma, the LM26 machine successfully tripled its electron temperature to 8.4 million\u00b0C.<\/figcaption><\/figure>\n\n\n\n

Not a power plant yet<\/h2>\n\n\n\n

This is the part worth keeping in mind. LM26 did not generate electricity for the grid, and it did not prove that General Fusion can already build a commercial reactor.<\/p>\n\n\n\n

The results are preliminary and have been submitted for peer review. That matters because fusion is full of impressive milestones that still need to survive repeat testing, independent scrutiny, and the brutal economics of real-world energy.<\/p>\n\n\n\n

Greg Twinney, General Fusion\u2019s chief executive, called the results evidence of progress. \u201cWe are forging a new path in fusion with our uniquely practical MTF approach,\u201d he said.<\/p>\n\n\n\n

The lithium challenge<\/h2>\n\n\n\n

The lithium liner is one of the most important parts of this experiment. It is the component that physically compresses the plasma, helping raise temperature and density toward fusion conditions.<\/p>\n\n\n\n

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