D. N. Paulson

Biomagnetic susceptometer with SQUID instrumentation

A novel SQUID magnetometer for noninvasive measurements of hepatic (liver) iron stores is discussed. Placement of the SQUID, detection coil, and magnet in the dewar vacuum region significantly reduced system noise. In addition, the system incorporates multiple magnets and detection coils which may allow the discrimination of the surface skin layer from the deeper (weaker signal) true liver iron concentration. Measurements indicate an instrumental noise level that is <20 mu g/g of equivalent iron concentration.

Propagation of fourth sound in superfluid

Pressure waves propagate through a superleak in both

sup 3

^{3}\mathrm{He}

He

-

BabySQUID: A mobile, high-resolution multichannel magnetoencephalography system for neonatal brain assessment

A

Artemis 123: development of a whole-head infant and young child MEG system

and

Attenuation of zero sound in oriented liquid3He-A

^{3}\mathrm{He}

Superfluid density of3He measured by fourth sound

-

Static magnetism of superfluid 3He

B

YBa2Cu3O7−δ superconducting quantum interference devices with metallic to insulating barriers written with a focused helium ion beam

, showing that both are superfluids below