Toroidal SQUID with ferromagnetic core superconducting transformer

Abstract
Ferromagnetic cores have been used for the secondary of a superconducting flux transformer in connection with a toroidal SQUID. Circuit analysis predicts an easier matching of the transformer for large inductances of the primary. Experimental data show a general agreement with the circuit analysis and a comparatively small increase in noise due to the metallic core.

This publication has 5 references indexed in Scilit: