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Nuclear fusion research using "boron powder" is safer and more efficient

wallpapers Tech 2020-05-29
Tokamak (tokamaks device) is a ring-shaped atomic fusion device. Still, this device has a significant problem: to ensure that the plasma used for nuclear fusion reaction is not affected by impurities, so as not to reduce the reaction efficiency.

Now, scientists at the Princeton Plasma Physics Laboratory (PPPL) of the US Department of Energy (DOE) have discovered that spraying a powder into the plasma can help scientists use the superheated gas in the tokamak device to generate heat to generate electricity, And will not produce greenhouse gases or long-term radioactive waste.

Nuclear fusion is the energy that drives the sun and stars. It combines light elements in the form of plasma and produces a lot of energy. Scientists are trying to replicate the process of nuclear fusion on Earth to provide almost inexhaustible power to generate electricity.

The research report on the results of nuclear fusion was published in Nuclear Fusion. PPPL physicist Robert Lunsford was the first author of the story. He said the primary purpose of the experiment was to confirm whether a powder jet can be used. The device was laid with a layer of boron, which ultimately seemed very successful from the research.

A layer of boron is coated on the plasma-facing side of the tokamak device. This process is called "boration." Boron prevents an element called tungsten from immersing into the plasma through the wall of the tokamak device. Once tungsten enters the plasma, it will cool the plasma particles and reduce the reaction efficiency of nuclear fusion. But scientists want to make the plasma as hot as possible at least ten times the temperature of the sun's surface-to maximize atomic fusion reactions to generate electricity.

The use of powder for bosonization is also much safer than the boronizing gas called diborane. Diborane gas is explosive, so everyone must leave the building where the tokamak device is located during the bosonization process. But if some boron powder is added to the plasma, it will be easy to handle. Diborane gas is explosive and toxic, but boron powder is inert, this new technology is less invasive and less dangerous.

The boron powder has another advantage. During the operation of boron gas, the physicist must stop the tokamak device, but the boron powder can be directly added to the plasma while the device remains in operation. This feature is essential to provide a stable source of electricity, and future nuclear fusion facilities must operate uninterrupted for a long time. This is a method to achieve steady-state atomic fusion, which can add more boron without completely shutting down the machine.

There are other reasons for using a power sprayer to spray the inner surface of a tokamak device. For example, the researchers also found that injecting boron powder into the plasma has the same effect as injecting nitrogen into the plasma-both techniques to increase the heat at the edge of the plasma, thereby increasing the stability of the plasma in the magnetic field.

Powder technology also provides scientists with an easy way to make low-density fusion plasmas. This is important because low density can cause plasma instability suppressed by magnetic pulses, which is a relative improvement infusion reactions—a simple way. Scientists can use powder to create low-density plasma at any time without waiting for the gas to boride. In this way, scientists can easily create a wide range of plasma conditions, which will allow physicists to explore the plasma reaction more thoroughly.

In the future, Lunsford and other scientists in the team hope to conduct more experiments to determine the exact destination of these materials after injection into the plasma. Physicists currently assume that after entering the plasma, these boron powders will fall on the top and bottom of the tokamak chamber like the plasma flow. If the model can support this assumption, then the boron layer will be known as The exact location within the Carmack device.

Trunnano is one of the world's largest manufacturers of amorphous boron powder. If you are interested in products related to boron powder, please contact Leo Manager, email: brad@ihpa.net.

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