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Superconducting quantum interference device as a near-quantum-limited amplifier for the axion dark-matter experiment
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10.1063/1.3583380
/content/aip/journal/apl/98/20/10.1063/1.3583380
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/20/10.1063/1.3583380
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Photograph of MSA with cooling fins.

Image of FIG. 2.
FIG. 2.

(a) Schematic of the experimental configuration; and are the current and flux biases. (b) Schematic of the variable temperature resistor.

Image of FIG. 3.
FIG. 3.

Output noise power measured with source at 300 mK and 100 mK; bath temperature was 45 mK.

Image of FIG. 4.
FIG. 4.

Gain and noise temperature of the MSA at 45 mK. The blue line is a fit to the noise temperature data. The dashed-dotted red line represents .

Image of FIG. 5.
FIG. 5.

Minimum measured noise temperature vs bath temperature . Dashed line is fit showing the proportionality of the noise temperature to solid line represents . Inset shows five lowest temperature points.

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/content/aip/journal/apl/98/20/10.1063/1.3583380
2011-05-17
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Superconducting quantum interference device as a near-quantum-limited amplifier for the axion dark-matter experiment
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/20/10.1063/1.3583380
10.1063/1.3583380
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