RADIODETECTION OF COSMIC NEUTRINOS - A NUMERICAL, REAL-TIME ANALYSIS

The coherent radiopulse generated by the excess charge in a high energy electron cascade in matter is numerically calculated. Particular attention is paid to the interplay between the physical dimensions of the shower and the features of the pulse. Interference effects between different particles in the shower front are responsible for the pulse spectrum and angular distribution. The calculation is relevant to the detection of neutrinos interacting with the Earth searching for GHz radiosignals. It is found that in the absence of radiowave absorption the radiosignal is above thermal background for distances linearly proportional to the primary electron energy confirming previous estimates. When the medium is ice r(m) congruent-to 0.2E (TeV).