Signal to Noise Considerations

• Noise contribution (in a conductive sample)

Ns

?0

b

B1cos(w0t)

s

ˆ

Ns = w0B1xy(8pTb5sDn/15)1/2

eddy

currents

ˆ

s = conductivity, Dn = bandwidth

Chen and Hoult, 1989

J(?)

?0

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