Cryocooled 10 V Programmable Josephson Voltage Standard

Published

December 11, 2014

Author(s)

Alain Rufenacht, Logan A. Howe, Anna E. Fox, Robert E. Schwall, Paul D. Dresselhaus, Charles J. Burroughs, Samuel P. Benz

Abstract

Improvements in fabrication and packaging of our 10 V Programmable Josephson Voltage Standard circuits have enabled the successful operation of these devices on a cryocooler. Limited cooling power and temperature oscillations at the chip must not compromise the accuracy of the quantized voltage steps. Flat-spot measurements of quantized voltages produced with all of the sub-arrays when the chip is biased at a temperature of 4.35 K produced a step width of 0.78 mA. This result was obtained with a cryostat that uses a modest 1.3 kW air-cooled compressor which generates 180 mW of cooling power at the chip.

Proceedings Title

Conference on Precision Electromagnetic Measurements Conference Digest

Volume

64

Issue

6

Conference Dates

August 24-29, 2014

Conference Location

Rio de Janeiro

Conference Title

Conference on Precision Electromagnetic Measurements

Pub Type

Conferences

Download Paper

https://doi.org/10.1109/TIM.2014.2374697

Keywords

Programmable Josephson voltage standards, closed-cycle cryocoolers, operating margins

Citation

Rufenacht, A. , Howe, L. , Fox, A. , Schwall, R. , Dresselhaus, P. , Burroughs, C. and Benz, S. (2014), Cryocooled 10 V Programmable Josephson Voltage Standard, Conference on Precision Electromagnetic Measurements Conference Digest, Rio de Janeiro, -1, [online], https://doi.org/10.1109/TIM.2014.2374697 (Accessed December 30, 2024)