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Groups > sci.physics > #497474
| Date | 2015-06-03 06:46 -0500 |
|---|---|
| From | Sam Wormley <swormley1@gmail.com> |
| Newsgroups | sci.physics |
| Subject | Mystery company blazes a trail in fusion energy |
| Message-ID | <5oidneqKcZC3dPPInZ2dnUU7-RmdnZ2d@giganews.com> (permalink) |
Mystery company blazes a trail in fusion energy > http://news.sciencemag.org/physics/2015/06/mystery-company-blazes-trail-fusion-energy > http://news.sciencemag.org/sites/default/files/styles/thumb_article_l/public/sn-fusuion.jpg > Of the handful of startup companies trying to achieve fusion energy > via nontraditional methods, Tri Alpha Energy Inc. has always been the > enigma. Publishing little and with no website, but apparently sitting > on a cash pile in the hundreds of millions, the Foothill Ranch, > California–based company has been the subject of intense curiosity > and speculation. But last month Tri Alpha lifted the veil slightly > with two papers revealing that its device, dubbed the colliding beam > fusion reactor, has shown a 10-fold improvement in its ability to > contain the hot particles needed for fusion over earlier devices at > U.S. universities and national labs. > > “They’ve improved things greatly and are moving in a direction that > is quite promising,” says plasma physicist John Santarius of the > Fusion Technology Institute at the University of Wisconsin, Madison. > > Fusion energy seeks to replicate the power source of the sun and > stars: heating atoms to enormous temperatures so that their nuclei > slam together with enough force to overcome their mutual repulsion > and fuse, releasing energy. The challenge on Earth is to confine > plasma—an ionized gas, with electrons and nuclei separated—at high > temperatures (greater than 150 million degrees Celsius) long enough > for fusion reactions to occur. Most effort over the past 60 years of > fusion research has focused on tokamaks—huge doughnut-shaped vessels > that confine plasma with powerful magnets—and laser fusion, which > uses high-energy laser pulses to squeeze tiny capsules of fuel. But > between these low-density and high-density extremes there is a range > of other approaches that have received little government funding. > Now, startup companies are moving into that vacuum. > > Tri Alpha’s device relies on a plasma phenomenon called a > field-reversed configuration (FRC), akin to a smoke ring of plasma. > Because plasma is made of charged particles (electrons and nuclei), > the swirling particles in the FRC create a magnetic field that acts > to hold the ring together, potentially long enough for fusion to get > going. Tri Alpha’s 23-meter-long device has at its heart a long tube > with numerous ring-shaped magnets and other devices along its length. > It creates a plasma smoke ring close to each end and fires them > toward the middle at 250 kilometers per second. At the center they > merge, converting their kinetic energy into heat to produce a > high-temperature FRC. > -- sci.physics is an unmoderated newsgroup dedicated to the discussion of physics, news from the physics community, and physics-related social issues.
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Mystery company blazes a trail in fusion energy Sam Wormley <swormley1@gmail.com> - 2015-06-03 06:46 -0500
Re: Mystery company blazes a trail in fusion energy "reber g=emc^2" <herbertglazier0@gmail.com> - 2015-06-03 08:54 -0700
Re: Mystery company blazes a trail in fusion energy Sam Wormley <swormley1@gmail.com> - 2015-06-03 10:58 -0500
Re: Mystery company blazes a trail in fusion energy HVAC <Mr.HVAC@gmail.com> - 2015-06-03 17:55 -0400
Re: Mystery company blazes a trail in fusion energy "hanson" <hanson@quick.net> - 2015-06-03 15:34 -0700
Re: Mystery company blazes a trail in fusion energy benj <nobody@gmail.com> - 2015-06-03 23:25 -0400
Re: Mystery company blazes a trail in fusion energy HVAC <Mr.HVAC@gmail.com> - 2015-06-04 06:10 -0400
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