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 T-sys = (3.3 +/- 0.1) K is measured at a frequency of 10.77 GHz, using a novel calibration scheme, allowing for measurement of T-sys exactly at the cavity output port.
A haloscope amplification chain based on a traveling wave parametric amplifier
Braggio C.;
2022
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 T-sys = (3.3 +/- 0.1) K is measured at a frequency of 10.77 GHz, using a novel calibration scheme, allowing for measurement of T-sys exactly at the cavity output port.
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