Good news! The faster we succeed with realizing the potential of nuclear fusion, the fast we can bury the greatest scam of our time, the Global Warming hoax and Climate Change religion.
"For the first time, scientists have built a fusion experiment using permanent magnets, a technique that could show a simple way to build future devices for less cost and allow researchers to test new concepts for future fusion power plants. ...
Stellarators typically rely on complicated electromagnets that have complex shapes and create their magnetic fields through the flow of electricity. Those electromagnets must be built precisely with very little room for error, increasing their cost. ..."
a new type of stellarator, a twisty machine that confines plasma, the electrically charged fourth state of matter, to harness the fusion process that powers the sun and stars and potentially generate clean electricity.
"Using permanent magnets is a completely new way to design stellarators," ... the device, known as MUSE. "This technique allows us to test new plasma confinement ideas quickly and build new devices easily."
From the abstract:
"This paper documents the design and construction of MUSE, the world's first permanent magnet (PM) stellarator and the first quasi-axisymmetric experiment. The purpose of MUSE is to develop and assess a new way of building optimised stellarators that uses simple planar coils PMs. Our PM optimisation algorithm consists of initialising a geometry to pack dipoles densely, running the FAMUS code to minimise surface field error subject to PM constraints and applying discrete jumps to reach a physically realisable solution. FAMUS treats the PM system as a set of ideal point dipoles. From there we construct finite-volume magnet towers to be housed in 3D-printed PM holders. We describe the design of the PM holders, which were validated by laser metrology. We analyse the effects of finite permeability, sensitivity to perturbations and magnetostatic forces. An exact analytic formula for the magnetic field from a finite-volume PM tower is presented to compute PM–PM forces and stress on the PM holder. Stellarator construction is complete and experiments are underway."
A return to roots: PPPL builds its first stellarator in decades and opens the door for research into new plasma physics (original news release)
A photo of MUSE, the first stellarator built at PPPL in 50 years and the first ever to use permanent magnets
At left: Some of the permanent magnets that make MUSE’s innovative concept possible. At right: A close-up of MUSE's 3D-printed shell.
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