\def\GWslide{\slide{Probes@GOLEM: Double rake probe @ South-East-Down port}
{
\twocolumns{0.44\tw}{
\GWig{width=\tw}{Experiments/EdgePlasmaPhysics/ParticleFlux/RakeProbe/figs/expsetup.png}}
{0.54\tw}
{
\bi\footnotesize
\im Radial array of 16 Langmuir tips is immersed in the plasma from the bottom
of the tokamak vessel, movable on the shot to shot basis.
\im Tokamak discharge: Cylindrical probe diameter 0.7 mm, probe length 2 mm.
Load resistance = 50 $\Omega$
\im MW plasma: Planar probe 5 x 5 mm
Load resistance RL = 50 k$\Omega$ (because of much lower plasma densities)
\im The DC voltage (from -40 to + 40 V) is applied to a probe (No 1) on the shot to
shot basis and the temporal evolution of the probe current is recorded with
sampling frequency 1 MHz i.e. with temporal resolution 1 us.
\ei
}
}
}