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Scientists Use Magnets to Easily Contain the Coldest Plasma in the World-Technology News, Firstpost

Physicists at Rice University have found a way to use a magnetic field to confine the coldest plasma in the world. The technical achievements are noteworthy in the study of clean energy, space weather, and astrophysics. Plasma is the basic state of matter, but unlike solids, liquids, and gases, plasma is not something we interact with every day. It is found in extreme environments such as the corona of the sun, the magnetosphere of planets, including the Earth, comet tails, interstellar and intergalactic media, and accretion disks around black holes. Many questions about plasma have not yet been answered, and new milestones achieved by rice university physicists can shed light on the relatively mysterious state of the matter.

The research team was led by Tom Killian, director of the Natural Sciences Department at Rice University. Published work To Physical review letter.. Killian and graduate students Grant Gorman and MacKenzie Warrens use laser-cooled strontium to warm the plasma from absolute zero to 1 degree Celsius (minus 272 degrees Celsius) and use the force from surrounding magnets to heat the plasma for 0.5 milliseconds. I trapped it.

This is the first time that an ultra-low temperature plasma has been magnetically confined. What Killian says will open the door to studying plasmas in many environments.

“This provides a clean and controllable testbed for studying neutral plasmas in much more complex locations such as the Sun’s atmosphere and white dwarfs,” says Kirian, a professor of physics and astronomy. Is Rice statement.. “It is very helpful to keep the plasma very cold and have these very clean laboratory systems. Starting with a simple, small, well-controlled and well-understood system is part of the confusion. You can get rid of it and really isolate the phenomenon. I want to see. “

According to Stephen Bradshaw, a US astrophysicist who specializes in the study of solar plasma phenomena and co-author of the study, in the sun’s atmosphere, the sun’s magnetic field is a multi-process in a subtle and complex way. Affects. Solar physicists rarely clearly observe certain features of the sun’s corona, as part of the atmosphere lies between the cameras and their features. According to the statement, intervening unrelated phenomena in the atmosphere obscure what they want to observe.

TheĀ· Researchers shared the plan Combining magnetic fields and lasers creates even better magnetic traps, paving the way for more discoveries.



Scientists Use Magnets to Easily Contain the Coldest Plasma in the World-Technology News, Firstpost

Source link Scientists Use Magnets to Easily Contain the Coldest Plasma in the World-Technology News, Firstpost

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