Published 2020 | Version v1
Journal article Metadata-only

Dependence of plasma parameters in hydrogen discharges on magnetic field configuration and neutral pressure in the DT-ALPHA device

Creators

  • 1. Tohoku University, Department of Quantum Science and Energy Engineering, Sendai, Miyagi (Japan)
  • 2. Nagoya University, Department of Applied Energy, Nagoya, Aichi (Japan)

Description

The dependence of hydrogen plasma parameters on magnetic field configuration and neutral pressure was investigated in the radio-frequency (RF) plasma source DT-ALPHA. It was found that higher electron density was obtained when the lower hybrid resonance condition was satisfied near the RF antenna. It was also found that use of lower hydrogen neutral pressure yielded higher electron density plasma. By optimizing the resonance condition and neutral pressure, the hydrogen plasma of Te ∼ 10 eV and ne > 1 × 1017 m-3 was achieved. (author)

Availability note (English)

Available from DOI: https://doi.org/10.1585/pfr.15.1201056

Additional details

Identifiers

DOI
10.1585/pfr.15.1201056;

Publishing Information

Journal Title
Plasma and Fusion Research
Journal Volume
15
Journal Page Range
p. 1201056.1-1201056.3
ISSN
1880-6821

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52064261
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
DIVERTORS; ELECTRON DENSITY; ELECTRON TEMPERATURE; HELIUM; HYBRID RESONANCE; HYDROGEN; MAGNETIC FIELDS; PLASMA DENSITY; PLASMA HEATING; PLASMA PRODUCTION; PLASMA SHEATH; POWER SUPPLIES; RF SYSTEMS; TLP DEVICES
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FLUIDS; GASES; HEATING; NONMETALS; PINCH DEVICES; RARE GASES; RESONANCE; THERMONUCLEAR DEVICES; TOROIDAL PINCH DEVICES

Optional Information

Notes
9 refs., 3 figs.