First results of the CROME experiment

摘要

It is expected that a radio signal in the microwave range is produced in the atmosphere due to molecularbremsstrahlung initiated by extensive air showers. The CROME (Cosmic-Ray Observation via Microwave Emission)experiment was built to search for this microwave signal. Radiation from the atmosphere is monitored in the extendedconsists of several parabolic antennas and fast read-out electronics. The sensitivity of the detector has been measuredwith different methods. First results after half a year of data taking are presented.