The most famous was the magnetic mirror machines, which was a series of large, expensive devices built at the Lawrence Livermore National Laboratory from the 1960s to mid 1980s.
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Large experimental magnetic mirror machines have been developed to confine hot deuterium plasma as a possible approach to fusion power, since the plasma is too hot for any solid container.
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Among the hot tickets are shelves to fit inside the locker, magnetic mirrors, magnets for messages, magnetic bulletin boards and removable paper to cover the utilitarian beige or gray walls.
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One is to try to stop up the ends with a magnetic mirror, the other is to eliminate the ends altogether by bending the field lines around to close on themselves.
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As a result of advocacy, the cold war, and the 1970s energy crisis a massive magnetic mirror program was funded by the US federal government in the late 1970s and early 1980s.
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Thus after the particle crosses the Equator, it will again encounter regions of increasing field, until it once again stops at the magnetic mirror point, on the opposite side of the Equator.
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Magnetic mirrors play an important role in other types of magnetic fusion energy devices such as tokamaks, where the toroidal magnetic field is stronger on the inboard side than on the outboard side.
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In a magnetic mirror a specially shaped electromagnet creates a configuration of magnetic field lines which reflects charged particles from a high density magnetic field region to a low density magnetic field region.
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The tank was a relatively simple example of the magnetic mirror concept, consisting largely of a long solenoid with additional windings at both ends to increase the magnetic field in those regions and form the mirror.
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Meanwhile, Magnetic mirror theory and direct energy conversion was developed by Richard F . Post's group at LLNL . A magnetic mirror or magnetic bottle, is similar to a biconic cusp except that the poles are reversed.