Abstract
According to the related theory about gas discharge, the numerical model of a gas discharge tube is established. With the help of particle simulation method, the curve of relationship between gas ignition voltage, gas pressure and electrode distance product is studied through computer simulation on physical process of producing plasma by DC neon discharge, and a complete consistence between the simulation result and the experimental curve is realized.
Highlights
Plasma is one of the four material forms which include the other three states: solid, liquid, and gas
Part or all of the charged particles are supplied by gas atom, or the charged particles must at least collide with the gas atom
British physicist Townsend holds the opinion that when the electrons move in a homogeneous electric field, on the one hand, they will continue to get energy from the field, on the other hand, the energy will lose because ionization caused by electrons impact gas atoms
Summary
Plasma is one of the four material forms which include the other three states: solid, liquid, and gas. It can reflect different characteristics from that of general conductor or medium when the electromagnetic waves interact with the plasma It can realize the purpose of stealth if it is applied into the military affairs [1]. There are two primary ways in producing stealth plasma, one is to use the plasma generator, the other is to coat a layer of radioactive isotope in the specific parts of the weapon (such as strong scattering area). Compared with the former methods, the latter is more expensive and more difficult in maintenance [2]. The ignition voltage can be greatly reduced and the plasma state be controlled conveniently through the study of nature and ratio of the gas in the discharge tube
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