A refrigerated Dewar for the Josephson array voltage calibration system
Abstract
A refrigerated Dewar has been used successfully with the Josephson array voltage calibration system. It has been used to re-liquefy helium with no degradation of the calibration system's performance. The independence of the array voltage from temperature has been confirmed to three parts in 10(exp 8) per Kelvin using this Dewar.
- Publication:
-
Presented at the Conference on Precision Electromagnetic Measurements
- Pub Date:
- 1989
- Bibcode:
- 1989pem..conf...11D
- Keywords:
-
- Calibrating;
- Cryogenic Equipment;
- Cryogenics;
- Electric Potential;
- Josephson Junctions;
- Design Analysis;
- Helium;
- Solid-State Physics