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. 2022 Sep 1;93(9):094701.
doi: 10.1063/5.0098039.

A haloscope amplification chain based on a traveling wave parametric amplifier

Caterina Braggio  1 , Giulio Cappelli  2 , Giovanni Carugno  3 , Nicolò Crescini  2 , Raffaele Di Vora  3 , Martina Esposito  2 , Antonello Ortolan  4 , Luca Planat  2 , Arpit Ranadive  2 , Nicolas Roch  2 , Giuseppe Ruoso  4
Affiliations

A haloscope amplification chain based on a traveling wave parametric amplifier

Caterina Braggio et al. Rev Sci Instrum. .

Abstract

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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