3-10 August 2016
Chicago IL USA
US/Central timezone
There is a live webcast for this event.

Design and performance of the signal processing and DAQ network of the CULTASK axion search experiment

Aug 6, 2016, 6:00 PM
2h
Riverwalk A/B

Riverwalk A/B

Poster Dark Matter Detection Poster Session

Speaker

MyeongJae Lee (Institute for Basic Science (Korea))

Description

CULTASK is an experiment to search for the cosmic axions using resonant cavities, to detect photons in the 1-8 GHz range from axion conversion in a very high magnetic field and at an ultra low temperature due to the inverse Primakoff effect. The postulated power of these signal is very weak in the order of $10^{-24}$ W, therefore, a signal processing network was carefully designed in order to detect these signal with a high signal-to-noise ratio. The basic principle of the signal processing employs an RF transceiver with direct down-conversion to baseband and a fast digitizer to read the amplified signal in real time for further offline Fourier transformation. The performance of cryogenic amplifier chain, room temperature signal processing and the feasibility to use digitization with Fourier transform compared with employing spectrum analyzer will be presented.

Primary author

MyeongJae Lee (Institute for Basic Science (Korea))

Co-authors

Soohyung Lee (Institute for Basic Science) Yannis Semertzidis (CAPP/IBS and KAIST in South Korea) Young-Im Kim (Institute for Basic Science)

Presentation materials

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