Dry cooling of a 10 V programmable Josephson voltage standard array

被引：0
|
作者：
Starkloff, M. [1 ]
Schubert, M. [1 ,2 ]
Lee, J. [2 ]
Behr, R. [2 ]
Palafox, L. [2 ]
Boeck, A. C. [3 ]
Fleischmann, P. M. [3 ]
Peiselt, K. [4 ]
机构：
[1] Supracon AG, Lehmgrube 11, D-07751 Jena, Germany
[2] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
[3] Esz AG Calibrat & Metrol, Max Planck Str 16, D-82223 Eichenau, Germany
[4] Leibniz Inst Photon Technol, Albert Einstein Str 9, D-07745 Jena, Germany
来源：
2016 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM 2016) | 2016年
关键词：
AC Quantum Voltmeter; cooling; cryocooler; Josephson junctions; programmable Josephson voltage standard;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes the properties of a 10 V programmable Josephson voltage standard (PJVS) array operated in a cryocooler. The operating margins at 70 GHz frequencies are discussed and compared to liquid helium cooling. A crucial factor is the limited heat conduction between PJVS chip and cold stage. A method is presented to estimate the heat conduction directly with the Josephson array. Finally, a direct comparison between two 10 V PJVS arrays, one operated in a cryocooler and the other cooled with liquid helium is performed and shows an agreement to a level of 1 part in 10(boolean AND){-10}.
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页数：2
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