Sentences with phrase «use strong magnetic fields»

«These include different types of MRI scans, which use strong magnetic fields and radio waves to produce detailed images of the inside of the brain, and Positron Emission Tomography (PET) scans, which use a small amount of a radioactive drug, or tracer, to test how tissues in the brain are actually functioning.

In research machines such as fusion reactors, scientists use strong magnetic fields to confine plasma, but those fields interfere with seeing what might happen during a natural dynamo.

The trick was performed using a strong magnetic field that distorts the movement of electrons in water molecules, which in turn produces a magnetic field opposing the one applied.

In a recent paper published in EPJ H, Fritz Wagner from the Max Planck Institute for Plasma Physics in Germany, gives a historical perspective outlining how our gradual understanding of improved confinement regimes for what are referred to as toroidal fusion plasmas — confined in a donut shape using strong magnetic fields — have developed since the 1980s.

It uses a strong magnetic field to monitor blood flow in the brain.

Not exact matches

The International Thermonuclear Experimental Reactor program in the south of France will use magnetic fusion and employ strong magnetic fields to hold and fuse hydrogen plasma.

Now, scientists using the European Southern Observatory's (ESO) Very Large Telescope (VLT) say they may have observed this effect in the light coming from a neutron star — a cosmic object with a very strong magnetic field.

Scientists use the apparatus to search for axions converting into radio waves in a strong magnetic field.

Eatough's team realised that the strong bursts of radio waves emitted by the pulsar would be rotated by the black hole's magnetic field, and so could be used to measure the strength of the field.

University of Utah physicists read the subatomic «spins» in the centers or nuclei of hydrogen isotopes, and used the data to control current that powered light in a cheap, plastic LED — at room temperature and without strong magnetic fields.

Jaubert explains: «When I was looking to see if a similar phenomenon has already been described, I was glad to see that some other research groups around the world obtained the same results experimentally using spin ice made of terbium in the presence of a strong magnetic field at temperatures close to absolute zero.

In the process, a strong magnetic field is applied to food to magnetize the metal fragments inside, and subsequently, these metals, if they are contained in the food, can be detected by sensing their magnetic fields using SQUID sensors.

Ignitor takes a different approach than ITER, using a much smaller and more compact tokamak (it's radius is 1.3 meters compared with ITER's 6.2 meters) and a much stronger magnetic field to compress the plasma.

The team extended the life of the spins 50 times by applying a strong magnetic field, some 25 times the strength of those used in previous experiments, to align the spins, along with lowering the temperature.

It also has to use very strong microwaves and magnetic fields to reach the sample, but these processes are invasive and can affect delicate bio-samples, just like the microwave in your kitchen, particularly when trying to see the molecular structure of liquids.»

The observations by the Breakthrough Listen team at UC Berkeley using the Robert C. Byrd Green Bank Telescope in West Virginia show that the fast radio bursts from this object, called FRB 121102, are nearly 100 percent linearly polarized, an indication that the source of the bursts is embedded in strong magnetic fields like those around a massive black hole.

The study used advanced high - resolution observations from the Dunn Solar Telescope in New Mexico (USA) alongside complementary observations from NASA's Solar Dynamics Observatory, to analyse the strongest magnetic fields that appear in sunspots.

In the single - atom qubit used by Morello's team, and which Tosi's new design applies, a silicon chip is covered with a layer of insulating silicon oxide, on top of which rests a pattern of metallic electrodes that operate at temperatures near absolute zero and in the presence of a very strong magnetic field.

The lab used the light to probe the shift in an ultra-high quality, two - dimensional electron gas supplied by Purdue University physicist Michael Manfra and set in a gallium arsenide quantum well (to contain the particles) under the influence of a strong magnetic field and low temperature.

The reactor's strong magnetic fields are used to keep the plasma away from the walls so that it doesn't cool down and lose energy.

Possible explanations for the repeating bursts range from outbursts from rotating neutron stars with extremely strong magnetic fields, to speculation that they are directed energy sources used by extraterrestrial civilizations to power spacecraft.

It plans to use newly available superconducting materials and technology that can create magnetic fields four times stronger than any in use now.

«New Horizons can also potentially detect both an ionosphere around Pluto using REX and any (however unlikely) strong magnetic field via SWAP and PEPSSI,» Stern said in an email.

When a molecule or compound with an unpaired electron is placed in a strong magnetic field, the spin of the unpaired electron can align in two Another dating method using electron spin resonance (ESR)-- also known as electron paramagnetic resonance (EPR)-- is based on the measurement of