High-current cable developed in liquid helium cooled magnets uses aluminum wire interspersed with the superconductor strands. The aluminum maintains higher electrical conductivity, is light in weight, and has low thermal capacity

Brooks, J.

Laverick, C.

Lobell, G. M.

Purcell, J.

English

NASA Technical Reports Server

April 1970	 Brief 70-10070 
AEC-NASA TECH BRIEF 
AEC-NASA Tech Briefs announce new technology derived from the research and development program of the U.S. AEC or 
from AEC-NASA interagency efforts. They are issued to encourage commercial application. Tech Briefs are available on a 
subscription basis from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Requests for individual copies or questions relating to the Tech Brief program may be directed to the Technology Utilizatkrn 
Division, NASA, Code UT, Washington, D.C. 20546. 
Stranded Superconducting Cable of Improved Design 
A lightweight, stable, high-current superconducting 
cable has been developed and tested in a supercon-
ducting (liquid helium cooled) magnet made with the 
cable. The design features the use of a substantial 
amount of aluminum wire interspersed with the 
superconductor strands. The advantages of aluminum 
are its low magnetoresistance coefficient, and, con- 
sequently, its higher electrical conductivity than 
copper at 4.2°K over a wide range of magnetic fields; 
its ability in the highly pure state to self-anneal at 
room temperature, so that reductions in electrical 
conductivity due to the winding stresses are avoided; 
its light weight; and its low thermal capacity. The 
latter results in red ucd cooldown costs. 
Notes: 
I. The principles applied to this cable and magnet 
design are applicable to a wide range of super-
conducting cables and magnets.
2. Inquiries concerning this innovation may be di-
rected to:
Office of Industrial Cooperation 
Argonne National Laboratory 
9700 South Cass Avenue 
Argonne, Illinois 60439 
Reference: B70-10070 
Source: J. Brooks and C. Laverick of

Particle Accelerator Division, 
G. Lobell of Central Shops,
and J. Purcell of 
High Energy Physics Division 
(A RG-90 108) 
Patent status: 
Inquiries concerning rights for commercial use of 
this innovation may be made to: 
Mr. George H. Lee, Chief 
Chicago Patent Group 
U.S. Atomic Energy Commission 
Chicago Operations Office 
9800 South Cass Avenue 
Argonne, Illinois 60439
Category 01 
This document was prepared under the sponsorship of the Atomic	 liability resulting from the use of the information contained in this 
Energy Commission and/or the National Aeronautics and Space	 document, or warrants that the use of any information, apparatus, 
Administration. Neither the United States Government nor any per-	 method, or process disclosed in this document may not infringe pri-
son acting on behalf of the United States Government assumes any	 vately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19700000066 2020-03-17T00:24:36+00:00Z


Stranded superconducting cable of improved design

Abstract

Similar works

Full text

Available Versions

NASA Technical Reports Server