Question

Яким ще шляхом, крім йонізації електронним ударом, поповнюється нестача вільних електронів у випадку самостійного газового розряду? ​

Answer 1

Ответ: вірний

Объяснение:Самостійний газовий розряд підтримується за рахунок емісії електронів з поверхні катода.

Answer 2

Ways to replenish the lack of free electrons in a self-sustained gas discharge

In addition to electron impact ionization, there are other ways in which the deficiency of free electrons in a self-sustained gas discharge can be replenished. One such method is through photoionization, which involves the absorption of photons by gas atoms or molecules, leading to the ejection of electrons and the creation of additional free electrons.

Photoionization occurs when a gas is exposed to electromagnetic radiation, such as ultraviolet (UV) light or X-rays. The energy from the photons is absorbed by the gas atoms or molecules, causing the electrons in the outer shells to gain enough energy to break free from their parent atoms or molecules. These newly created free electrons can then participate in the gas discharge process.

Another way to replenish the lack of free electrons in a self-sustained gas discharge is through secondary electron emission. This process involves the ejection of additional electrons from a solid surface when it is bombarded by high-energy electrons or ions. The primary electrons or ions transfer their energy to the surface atoms, causing the ejection of secondary electrons. These secondary electrons can then contribute to the gas discharge by participating in electron-impact ionization or other processes.

It is important to note that the specific mechanisms and processes involved in replenishing the lack of free electrons in a self-sustained gas discharge can vary depending on the specific conditions and properties of the gas and the discharge system. The examples mentioned above, photoionization and secondary electron emission, are just a couple of the possible ways in which this can occur.

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