glow discharge


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Related to glow discharge: sputtering, Arc discharge

glow discharge

n
(General Physics) a silent luminous discharge of electricity through a low-pressure gas
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Contract notice: This notice of contract is the application phase conducted in the context of a restricted tender procedure, the purpose of providing a high resolution mass spectrometer coupled to a source glow discharge (glow discharge mass spectrometry (gdms)).
The glow discharge is a partially ionized gas that is classified as a variant of non-equilibrium plasma.
Current ionisation methods: The use of 18 specified ionisation methods in mass spectrometry, namely atmospheric pressure chemical ionisation (APCI), atmospheric pressure photoionisation (APPI), chemical ionisation (CI), desorption chemical ionisation (DCI), desorption/ionisation on silicon (DIOS), direct analysis in real time (DART), electron ionisation (EI), electrospray ionisation (ESI), fast atom bombardment (FAB), field desorption (FD), field ionisation (FI), glow discharge (GD), inductively coupled plasma (ICP), ion attachment ionisation (IAI), matrix-assisted laser desorption ionisation (MALDI), negative ion electron capture (NIEC), thermal ionisation (TI), thermospray or other (more than 30 ionisation methods were identified in this market study).
He covers elements of the theory of numerical modeling of gas-discharge phenomena, numerical simulation models of glow discharge, and ambipolar models of direct current discharges.
Electrostatic waves generated by the HAARP radio transmissions are thought to be responsible for accelerating electrons to high enough energy to produce the glow discharge in the neutral atmosphere approaching altitudes of nearly170 kilometers.
The modifications included treatments by direct current plasma glow discharge, vacuum, conditioning of samples at room temperature for prolonged periods of time, and their combinations.
Glow discharge optical emission spectrometry (GDOES) was used to obtain an in-depth profile of composition.
In HEPAP, a triode glow discharge is used to achieve plasma intensification and energetic flux bombardment, the generation of plasma above a substrate surface provides extra energy to the gas mixture to enable a coating to be deposited at much lower substrate temperature, thus allowing a wider range of potential applications to be developed.
The chemical composition of pure Al on the surface and substrate under this coating was measured by glow discharge optical emission spectroscopy (GDOES) using Spectrumat GDS-750 device (see Tab.
have developed a biodegradable aliphatic polyester made hydrophilic by a corona glow discharge.
In addition to the conventional requirements on the regulation and stabilisation of output voltage or current, these systems are also subject to specific requirements, reflecting the properties of electrical technology equipment (the need to ensure continuous processes during the formation of the breakdown in the vacuum chamber or in the electron beam gun, leading to short circuits of the output of the high-voltage source; maintenance of the glow discharge regime without transition to arc discharge; restriction of the level of output current under dynamic disruptions in welding, etc).