  In this article we try to answer the question whether the radar detection
technique can be used for the detection of high-energy-neutrino induced
particle cascades in ice. A high-energy neutrino interacting in ice will induce
a particle cascade, also referred to as a particle shower, moving at
approximately the speed of light. Passing through, the cascade will ionize the
medium, leaving behind a plasma tube. The different properties of the
plasma-tube, such as its lifetime, size and the charge-density will be used to
obtain an estimate if it is possible to detect this tube by means of the radar
detection technique. Next to the ionization electrons a second plasma due to
mobile protons induced by the particle cascade is discussed. An energy
threshold for the cascade inducing particle of 4 PeV for the electron plasma,
and 20 PeV for the proton plasma is obtained. This allows the radar detection
technique, if successful, to cover the energy-gap between several PeV and a few
EeV in the currently operating neutrino detectors, where on the low side
IceCube runs out of events, and on the high side the Askaryan radio detectors
begin to have large effective volumes.
