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When space makes you dizzy:
Landing a spaceship is not a good time for a pilot to feel
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It's easy to tell which way is up and which way is down...or
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Record-high magnetic fields in lab may allow re-creations of extreme astrophysical phenomena
by APS at the 44th Annual Meeting of the Division of Plasma Physics
Using a new technique, researchers from Imperial College, London, and the Rutherford Appleton lab in the UK have created super-strong magnetic fields that are hundreds of times more intense than any previous magnetic field created in an Earth laboratory and up to a billion times stronger than our planet's natural magnetic field. Such intense magnetic fields may soon enable researchers to recreate extreme astrophysical conditions, such as the atmospheres of neutron stars and white dwarfs, in their very own laboratories.
 In the near future, it may be possible to reproduce the intense magnetic fields at the center of the Crab nebula (shown)
At the Rutherford Appleton Laboratory near Oxford in the UK, researchers at the VULCAN facility aimed intense laser pulses, lasting only picoseconds (trillionths of a second), at a dense plasma. The resulting magnetic fields in the plasma were on the order of 400 MegaGauss. To determine the magnitude of the fields, the researchers made polarization measurements of high-frequency light emitted during the experiment. Recent measurements to be presented at the APS/DPP conference suggest that the peak magnetic field in the densest region of the plasma approaches 1 GigaGauss. Due to technological advances peak laser intensities are likely to increase still further and consequently even higher magnetic fields may soon be possible, making it possible to put models of extreme astrophysical conditions to the test.
Contacts
Karl Krushelnick, Imperial College of Science,Technology,and Medicine,
University of London, 011 44 (0) 20 7594 7635, kmkr@ic.ac.uk
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