A large volume quiescent plasma in a uniform magnetic field
作者:
Earl R. Ault,
K. R. MacKenzie,
期刊:
Review of Scientific Instruments
(AIP Available online 1973)
卷期:
Volume 44,
issue 12
页码: 1697-1699
ISSN:0034-6748
年代: 1973
DOI:10.1063/1.1686035
出版商: AIP
数据来源: AIP
摘要:
A reasonably uniform cylindrical plasma, 15–20 cm diam, and collisionless for many wave experiments, is generated in fields up to 500 G by applying 200 V of rf at 80 Mc to a fine wire grid stretched across a diameter. Axial containment is provided by opposing sets of &mgr;‐metal strips that gather lines of force and create multimirror fields. Drift waves are inhibited by a short range peripheral alternating shear field, produced by an azimuthal ring of bar magnets. Densities are 108−109ions/cm3in argon with electron temperatures up to 12 eV, with a noise level, &dgr;n / n≈ 3 × 10−3, over the ion acoustic frequency range.
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