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Anna Fox (Fed)

Publications

Dual-Frequency-Bias Programmable Josephson Voltage Standard Circuit

Author(s)
Alain Rufenacht, Anna Fox, Raegan Johnson, Benjamin Scheck, Paul Dresselhaus, Samuel Benz
This article presents a 2-V programmable Josephson voltage standard (PJVS) with dual microwave frequency inputs and multiple output taps. The design provides...

Leakage Current Pathways in Josephson Arbitrary Waveform Synthesizer Standards

Author(s)
Raegan Johnson, Jesus Mejia, Alain Rufenacht, Anna Fox, Nathan Flowers-Jacobs, Frederic Overney, Paul Dresselhaus, Samuel Benz
The voltage errors related to ac leakage currents in Josephson arbitrary waveform synthesizer (JAWS) systems are significant contributors to the overall system...
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Data and Software Publications

Traceable Validation of Calculable Quantum-Based RF Waveforms

Author(s)
Jeremy Thomas, Nathan Flowers-Jacobs, Anna Fox, Johannes Hoffmann, Paul Dresselhaus
We compare the calculated, quantum-based output of a radio-frequency Josephson arbitrary waveform synthesizer (RF-JAWS) with its measured output that is calibrated through the established NIST RF

Patents (2018-Present)

An automated comparison measurement between two PJVS systems using an analog nanovoltmeter

Josephson Voltage Standard

NIST Inventors
Samuel P. Benz , Paul Dresselhaus , Alain Rufenacht , Nathan Flowers-Jacobs and Anna Fox
It was determined that a device having simultaneous voltage reference signals would be useful for many measurement and calibration activities. A JVS advantageously having multiple output leads would meet this criterion, and provide such voltage references without the need for multiple systems
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Created July 30, 2019, Updated December 8, 2022
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