Table 2

Perpendicular components of background time-varying and static magnetic fields measured at location of sample holders

Component of System
Active (Yes/No)
Time-Varying Field
Static Field

coils A,B
no
3nT
50.3 μT
coils C,D
no
3nT
45.6 μT
Amplifier and Signal Generator
no


coils A,B
no
3nT

coils C,D
no
3nT

Amplifier and Signal Generator
yes


coils A,B
yes
2mT*

coils C,D
no
0.38 μT*

Amplifier and Signal Generator
yes



* With alternate Helmholtz pairs active the background time-varying field in the non-active coils was found to be 0.38 μT.

Harris et al. Cancer Cell International 2002 2:3   doi:10.1186/1475-2867-2-3