Noble gas plasma

Japanese: 希ガスプラズマ - きがすぷらずま
Noble gas plasma

...An analytical method in which rare gas elements such as argon or helium are plasma discharged in a gaseous state to generate a high-temperature medium of 4,000 to 10,000 K, a sample solution is introduced into the plasma, and the target elements in the sample are quantified or qualified based on the emission intensity of atoms, ions, and molecules. Argon and helium plasmas are also called rare gas plasmas, and such plasmas are classified as direct current plasmas, high frequency plasmas, and microwave plasmas, and direct current, high frequency (27 to 50 MHz), and microwaves (2450 MHz) are used to generate and maintain the plasma. The analytical plasma used in this type of emission analysis is a moderately ionized plasma with the above-mentioned temperatures and an electron density of 1014 to 1016 /cm3. ...

*Some of the terminology that refers to "rare gas plasma" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…アルゴンやヘリウムといった希ガス元素を気体状態でプラズマ放電させて4000~1万Kの高温媒体を生成し,そのプラズマ中に試料溶液を導入して,原子,イオン,分子の発光強度から試料中の目的元素の定量または定性を行う分析法。アルゴンやヘリウムのプラズマを希ガスプラズマとも呼ぶが,このようなプラズマは直流プラズマ,高周波プラズマ,マイクロ波プラズマとも分類されるように,プラズマの生成・維持には直流電流,高周波(27~50MHz),マイクロ波(2450MHz)が用いられる。このような発光分析で用いられる分析用プラズマは,前述の温度に加え,電子密度が1014~1016個/cm3の中電離プラズマである。…

※「希ガスプラズマ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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