Speaker
Dr
Young-Im Kim
(Institute for Basic Science)
Description
CULTASK (CAPP Ultra Low Temperature Axion Search in Korea) is an experiment to search for the cosmic Axion using resonant cavities, targeting to be sensitive to a large range of microwave photons converted via the Primakoff effect in a very high magnetic field at an ultra low temperature. In order to detect very weak signal of 10^-24 W with a high signal-to-noise ratio, a careful system for signal processing has been designed and developed. The basic principle of the signal processing is a radio frequency (RF) transceiver with direct conversion to baseband, with a fast digitizer to process the amplified signal in real time for further Fourier transformation. The measurement results of a cryogenic amplifier chain and the signal processing system at room-temperature will be presented.
Primary author
Dr
Young-Im Kim
(Institute for Basic Science)
