Microwave plasma heating by cavity modes at electron cyclotron and lower hybrid frequencies

Journal Article · Sat Dec 01 04:00:00 EST 1990 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/27.61521· OSTI ID:5694286

de Cunha Rapozo, C; de Assis, A S; da Silva, J C.X. ^[1]

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1. Universidade Federal Fluminense, Niteroi, RJ (Brazil). Inst. de Fisica

Plasma heating by radio frequency (RF) in the electron cyclotron and lower hybrid frequency ranges has been studied using Langmuir and magnetic probes in the linear mirror machine, LISA. It has been shown that global modes have been excited. The plasma has been heated by the electron cyclotron resonance and linear mode conversion at r = {plus minus}3 cm using a RF source of 2.45 GHz and 1 kW. When an additional FR source of 30 MHz and 350 W was introduced, it heated the plasma via the lower hybrid resonance at r = {plus minus}5 cm. An increase in overall electron temperature and plasma density has been observed when both sources were present.

• OSTI ID: 5694286
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 18:6; ISSN ITPSB; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
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700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CONVERSION
ECR HEATING
ELECTRIC PROBES
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
ENERGY CONVERSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
HEATING
HIGH-FREQUENCY HEATING
LANGMUIR PROBE
LOWER HYBRID HEATING
MAGNETIC MIRRORS
MAGNETIC PROBES
MICROWAVE RADIATION
OPEN PLASMA DEVICES
OSCILLATION MODES
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA HEATING
PROBES
RADIATIONS
RF SYSTEMS
THERMONUCLEAR DEVICES