A flow-through SQUID microscope for NDE of defects in superconducting wires
ORAL
Abstract
An integral component of MRI superconducting magnets is the LTS wire used to generate the magnetic field. These magnets are wound from km-long sections, and a single defect can adversely affect its performance. We have modified the nose cone of our high-Tc cryocooled SQUID microscope to enable fast NDE of long wires. A thin tube is positioned immediately beneath the SQUID chip, while a motor-controlled feed mechanism pulls the wire through the tube. We describe the design and operation of the flow-through system, and present measurement results.
*Supported by AFOSR and CSR
–