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Plasma technology has many applications

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09 Sep,2020

Plasma technology has many applications:

Plasma is a universal state in the boundless universe. Most of the glowing stars in the universe have very high internal temperatures and pressures, and most of the matter inside these stars is in plasma. Solid, liquid and gaseous materials are found only in dim planets and scattered interstellar matter.  

  

Right around us, we see plasma all the time. It can be found in the tubes of fluorescent and neon lights, and in the blinding electric arcs. In addition, wonderful plasma can be found in the ionosphere around the Earth, in beautiful auroras, flash discharges in the atmosphere, and in the tails of shooting stars.

  

What is plasma useful for? Oh! It's very versatile. From our daily life to industry medicine, agriculture, environmental protection, military, space, energy, celestial bodies and other aspects, it has a very important application value.  

  

An important study is the reaction between a hot plasma and a controlled thermonuclear fusion: if the lightest element of a substance, such as the isotope deuterium of hydrogen, is used to form a hot plasma at tens of millions of degrees Celsius, then these nuclei will react. The result is a burst of energy that scientists call thermonuclear fusion. The hydrogen bomb is such an explosive thermonuclear fusion reaction. But the hope is that a thermonuclear fusion reaction, which slowly releases energy and generates electricity, will create an "artificial little sun", a goal that has yet to be achieved.  

  

Another important application is that some special chemical elements form a low-temperature plasma with a macroscopic temperature that is not high, but the electron temperature can reach tens of thousands of degrees Celsius. In this case, special chemical reactions take place between substances, so new materials can be developed. For example, a thin layer of titanium nitride is applied to tools such as drills to enhance their strength, solar cells are made, and the surface of an aircraft is coated with a material specially designed to absorb radar waves to avoid radar tracking (i.e. stealth aircraft)... These are called plasma thin film technologies.

  

In addition, plasma can also be used to remove the sulfur in smoke, use plasma to irradiate seeds to improve the output of crops, the development of large screen plasma TV, the development of plasma rocket engine to Mars and other distant space travel... The applications of plasmas are endless.

  

Plasma has also received considerable attention in medical procedures, such as the recent popular use of plasma cryoablation for rhinitis, pharyngitis, and snoring. Plasma low temperature melting operation principle is to make the plasma thin layer is formed between the electrodes and the organization, the layer of ions are electric field acceleration, and transfer energy to the organization, at low temperatures (40 oc - 70 oc) open the intercellular molecules combined with the key, in the target tissue cells into carbohydrates and diseased tissue caused by oxide liquefaction ablation, known as the plasma (not heat effect), so as to achieve the effect of target tissue volume reduction, let.

crf plasma

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