News tagged with plasma sheath
Scientists fabricate first plasma transistor
Nov 12, 2008 |
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Since their development in the 1940s, transistors have been at the heart of computers and other modern electronic devices. Transistors - whose job is to start, stop, or amplify electric current - come in all ...
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New plasma transistor could create sharper displays
Feb 04, 2009 |
4.7 / 5 (9) |
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(PhysOrg.com) -- By integrating a solid-state electron emitter and a microcavity plasma device, researchers at the University of Illinois have created a plasma transistor that could be used to make lighter, ...
Fractionated stereotactic radiotherapy reduces vision loss in optic nerve sheath meningiomas
Nov 03, 2009 |
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Optic nerve sheath meningiomas are rare tumors that are traditionally treated with surgery, which is typically a blinding procedure. However, researchers from Thomas Jefferson University Hospital have found that a specialized ...
Biochemical 'On-Switch' Could Solve Protein Purification Challenge
Oct 20, 2009 |
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(PhysOrg.com) -- Drugs based on engineered proteins represent a new frontier for pharmaceutical makers. Even after they discover a protein that may form the basis of the next wonder drug, however, they have ...
Upping the power triggers an ordered helical plasma
Nov 02, 2009 |
4.9 / 5 (7) |
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If you keep twisting a straight elastic string, at some moment it starts kinking in a wild way. Something similar occurs when one increases the electrical current flowing in a magnetized plasma doughnut: it ...
Plasma power: Turning fusion into a renewable energy source
Sep 14, 2009 |
4.6 / 5 (9) |
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Fusion is best known for powering the sun and stars. But researchers have long been studying ways to transform that power source into future "green" energy that can be used on Earth. A team of researchers ...
A supercharged metal-ion generator: Higher-quality coatings through 'runaway' self-sputtering
Jan 29, 2009 |
4.7 / 5 (3) |
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In the electronics industry, thin metal films are deposited on silicon wafers with a sputter gun, which uses energetic ions - atoms with a positive charge - to knock the metal atoms off a target. Scientists at the U.S. Department ...
Plasma vessel for Wendelstein 7-X fusion experiment ready
Physics /
Jan 20, 2006 |
4.9 / 5 (42) |
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The first large production order for the Wendelstein 7-X fusion experiment, construction of the plasma chamber, has been successfully completed: The 20 sectors of the bizarrely shaped 35-ton vessel were assembled ...
Signs of ideal surfing conditions spotted in ocean of solar wind
Aug 31, 2009 |
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(PhysOrg.com) -- Researchers at the University of Warwick have found what could be the signal of ideal wave "surfing" conditions for individual particles within the massive turbulent ocean of the solar wind. The discovery ...
With stimulus aid, scientists hope to mimic nature's dynamos
Space & Earth / Earth Sciences
Oct 09, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- In the cosmos, all celestial objects - planets, stars, galaxies and clusters of galaxies - have magnetic fields. On Earth, the magnetic field of our home planet is most easily observed in a compass where ...
Roadrunner supercomputer models nonlinear physics of high-power lasers
Oct 28, 2009 |
4 / 5 (4) |
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For years scientists have struggled with the difficult physics of inertial confinement fusion. This is the attempt to compress a target capsule containing isotopes of hydrogen with high-powered lasers to high enough pressure ...
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