Positive biasing of plasma in front of LH antennae
It has been shown on tokamak CASTOR by using an emissive Langmuir probe that positive plasma 'biasing' takes place in a radially very narrow layer just at the grill mouth. The effect scales linearly with the power applied. Apparently, this positive biasing results from the charge separation due to the escaping electrons, accelerated by the near field lower hybrid wave effects in this region, along the magnetic field lines (Fuchs V et al 1996 Phys. Plasmas 3 4023).
Bibliographic Reference: An article published in: Plasma Physics and Controlled Fusion 47 (2005), pp. L17-L24
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0741-3335/47/7/L01
Record Number: 200719081 / Last updated on: 2007-04-11
Original language: en
Available languages: en