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Yes, the have created a miniature dipole magnetic field and plasma in order to create an artificial mini magnetosphere structure to protect future spacecrafts instrumentation and astronauts. The laboratory experiments have been successful in replicating a magnetized barrier (a shield) able to reject supersonic energetic plasma similar to that of the Solar Wind.

One of such experiments was carried out by the Rutherford Appleton Laboratory in Oxfordshire, England, and was done in a linear plasma confinement device called LinX, with a supersonic plasma beam capable of Mach 3 speeds and temperatures of 5-7 eV emission band.

According to "www.iop.org" (IOP Electronic Journals) on the Plasma Physics and Controlled Fusion, from the December 2008 paper "The interaction of a flowing plasma with a dipole magnetic field: measurements and modeling of a diamagnetic cavity relevant to spacecraft protection":

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New experiments to test the shielding concept of a dipole-like magnetic field and plasma, surrounding a spacecraft forming a 'mini magnetosphere'. Initial laboratory experiments have been conducted to determine the effectiveness of a magnetized plasma barrier to be able to expel an impacting, low beta, supersonic flowing energetic plasma representing the solar wind. Optical and Langmuir probe data of the plasma density, the plasma flow velocity and the intensity of the dipole field clearly show the creation of a narrow transport barrier region and diamagnetic cavity virtually devoid of energetic plasma particles.
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In Star Trek, producers thought that any spacecraft carrying humans would need protection from the hazardous effects of cosmic radiation. They came up with a ‘deflector shield’ to protect Enterprise and bounce radiation. This idea could one day become a reality thanks to these experiments.
Source(s):
http://www.iop.org/EJ/abstract/0741-3335/50/12/124025

http://www.minimagnetospheres.org/

http://www.sstd.rl.ac.uk/

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