A haloscope amplification chain based on a traveling wave parametric amplifier.

  title={A haloscope amplification chain based on a traveling wave parametric amplifier.},
  author={Caterina Braggio and Giulio Cappelli and Giovanni Carugno and Nicol{\`o} Crescini and Raffaele Di Vora and Martina Esposito and Antonello Ortolan and Luca Planat and Arpit Ranadive and Nicolas Roch and Giuseppe Ruoso},
  journal={The Review of scientific instruments},
  volume={93 9},
In this paper, we will describe the characterization of an RF amplification chain based on a traveling wave parametric amplifier. The detection chain is meant to be used for dark matter axion searches, and thus, it is coupled to a high Q microwave resonant cavity. A system noise temperature Tsys = (3.3 ± 0.1) K is measured at a frequency of 10.77 GHz, using a novel calibration scheme, allowing for measurement of Tsys exactly at the cavity output port. 

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