| 11. | A fusion plasma shaped like a twisted bow tie is confined inside a magnetic mirror.
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| 12. | This is an improvement over the simpler magnetic mirror.
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| 13. | Magnetic mirrors can reflect plasma when it moves from a low to high density field.
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| 14. | By the late 1960s, magnetic mirror confinement was considered a viable technique for producing fusion energy.
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| 15. | This effect is known as the magnetic mirror.
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| 16. | So how do magnetic mirrors work, then?
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| 17. | In 1980 Robert W . Bussard developed a cross between a fusor and magnetic mirror, the polywell.
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| 18. | A major area of research in the early years of fusion energy research was the magnetic mirror.
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| 19. | It was first suggested by Richard F . Post in conjunction with magnetic mirrors, in the late sixties.
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| 20. | Though particles can be reflected to some extent with magnetic mirrors, even these allow many particles to pass.
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