6533b852fe1ef96bd12ab56a
RESEARCH PRODUCT
Plasma distributions observed in a 2.45 GHz hydrogen discharge
Osvaldo Daniel CortázarA. Vizcaíno-de-juliánH. KoivistoA. Megía-macíasOlli Tarvainensubject
HydrogenPhysics::Instrumentation and DetectorsChemistrychemistry.chemical_elementPlasmaCondensed Matter PhysicsPhotodiodelaw.inventionMagnetic fieldLight intensityPhysics::Plasma PhysicslawLight emissionAtomic physicsSaturation (magnetic)Microwavedescription
The existence of various spatial distributions of hydrogen plasma in a pulsed 2.45 GHz microwave discharge is demonstrated. The data has been obtained through optical emission diagnostics utilizing an ultra-fast CCD camera system with multi-channel plate (MCP) intensifiers, and a wavelength-filtered photodiode recording temporal light emission signals of hydrogen atoms and molecules. It has been observed that the magnetic field topology and strength are determining the transitions between different plasma patterns and spectral saturation times while neutral gas pressure and microwave power show a weaker influence on the profiles but affect the emitted light intensity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-10-09 | Plasma Sources Science and Technology |