SQUID holder with high magnetic shielding

1 February 1990

journal article
research article
Published by AIP Publishing in Review of Scientific Instruments

Vol. 61 (2) , 834-838
https://doi.org/10.1063/1.1141503

Abstract

We discuss a SQUID holder designed for high magnetic shielding. We show how to estimate the attenuation of the magnetic field from the normal magnetic modes for an approximate geometry. The estimate agrees satisfactorily with the attenuation measured with a commercial rf SQUID installed in the holder. The holder attenuates external magnetic fields by more than 10⁹ at the SQUID input. With the SQUID input shorted, the response to external fields is 10⁻⁵ Φ₀/G.

Keywords

SQUID DEVICES
MAGNETIC SHIELDING
MAGNETIC FIELDS
NIOBIUM
SAMPLE HOLDERS
SQUID HOLDER
MAGNETOSTATIC POTENTIAL
RADIOFREQUENCY SHIELDING

This publication has 2 references indexed in Scilit:

Drift Performance of D. C. Paramagnetic Salt Thermometers
Japanese Journal of Applied Physics, 1987
Effect of Trapped Flux and Temperature Variations on 1/f Noise in RF SQUIDs
Japanese Journal of Applied Physics, 1987