7 Oxygen, nitrogen, and their admixtures with argon or helium used as carrier gases have been employed in modern configurations to achieve medically acceptable gas temperatures below 40°C.8 Earlier plasma jets had high gas temperatures that were unsuitable for clinical purposes. These developments ...
Argon, which can make a bright blue or light lavender color, is the most common. Xenon, krypton, and helium are also used but less often. You can also put a gas in a tube colored with a phosphorescent powder coating. So if you put neon in a yellow tube, you get an orangish ...
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