AC EFFECTS AND FLUX PUMPS

(Fourth Week)

Chairman: S.L. Wipf, Atomics International

 (Photos)



Although the Fourth of July cut this week to three days, Stefan Wipf compressed into this period not only a brilliant survey of the problems of instabilities and at effects in superconductors, but also a half-day review of the status of flux pumps. Particularly notable in the first category were the review papers by Hart of General Electric and by Chairman Wipf. Some very imaginative ideas in the field of superconducting transmission systems were outlined by Nahman of the Bureau of Standards who thinks not only of transmitting power but also of transmission in the same system of information and of cryogenic liquids.

 

Following papers were submitted for publication:

 

Ac Losses in Superconductors

     S.L. Wipf, Atomics International

 

Use of Superconductors in High Energy Physics

     J.P. Blewett, Brookhaven National Laboratory

 

Electrical Loss Measurements in a NbTi Magnet

     F. Voelker, Lawrence Radiation Laboratory, Berkeley

 

Ac Losses in Magnets made of Nb3Sn Ribbon

     G.H. Morgan and P.F. Dahl, Brookhaven National Laboratory

 

Dynamic Resistivity of Hard Superconductors in a Perpendicular Time Varying Field

     A. Altorfer, F. Caimi, and J.M. Rayroux, Oerlikon Engineering Company

 

Magnetic Instabilities and Solenoid Performance: Applications of the Critical State Model

     H.R. Hart, Jr., General Electric Company

 

Magnetic and Thermal Instabilities Observed to Commercial Nb3Sn Superconductors

     G. del Castillo and L.O. Oswald, Argonne National Laboratory

 

Observations of Flux Jump Behavior Related to Various Changes of Geometry, and Thermal  and Electrical Environment

     A.D. McInturff, Brookhaven National Laboratory

 

Instabilities and Flux Annihilation

     S.L. Wipf, Atomics International

 

Superconducting Transmission Lines Communication and Power

     N.S. Nahman, National Bureau of Standards, Boulder

 

Recent Developments in Superconductivity in Japan

     Presented by N. Takano, Tokyo Shibaura Electric Company

 

The Case for Flux Pumps and Some of Their Uses

     S.L. Wipf, Atomics International

 

Design Principles and Characteristics of the G.E. Flux Pump

     R.L. Rhodenizer, General Electric Company

 

Flux Pumps as Power Supplies in Comparison with Alternatives

     M.S. Lubell and K.R. Efferson, Oak Ridge National Laboratory

 

Flux Pump Work at Los Alamos

     H. Laquer, Los Alamos Scientific Laboratory

 

60 Hz Flux Pumps

     R.B. Britton, Brookhaven National Laboratory

 

Proposal for a Flux Pump Utilizing the Inverse Ettingshausen Effect in Hard Type II Superconductors in the Mixed State

     W.H. Bergmann, Argonne National Laboratory

 

Summary of the Fourth Week Ac Losses, Instability and Flux Pumps

     S.L. Wipf, Atomics International

 


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