NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
DC Comparison of a Programmable Josephson Voltage Standard and a Josephson Arbitrary Waveform Synthesizer
Published
Author(s)
Alain Rufenacht, Nathan Flowers-Jacobs, Anna Fox, Steven B. Waltman, Robert E. Schwall, Paul Dresselhaus, Samuel P. Benz, Charles J. Burroughs
Abstract
We present the first dc comparison of a programmable Josephson voltage standards and a pulse- driven Josephson arbitrary waveform synthesizer (JAWS) at 3 V. Both devices are mounted side- by-side on the cold stage of a cryocooler. The relative agreement achieved was better than 1 part in 108. This measurement allowed us to identify systematic limitations of the JAWS system. An undesired current injection from the JAWS isolation amplifier in the measurement circuit is currently responsible for an error voltage of a few nanovolts.
Proceedings Title
2018 Conference on Precision Electromagnetic Measurements
Rufenacht, A.
, Flowers-Jacobs, N.
, Fox, A.
, Waltman, S.
, Schwall, R.
, Dresselhaus, P.
, Benz, S.
and Burroughs, C.
(2018),
DC Comparison of a Programmable Josephson Voltage Standard and a Josephson Arbitrary Waveform Synthesizer, 2018 Conference on Precision Electromagnetic Measurements, Paris, FR, [online], https://doi.org/10.1109/CPEM.2018.8500955, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925172
(Accessed October 10, 2025)