If you were protecting a sample from a high frequency AC magnetic field, what non-magnetic property of the shielding material would be important and why?
Electromagnetic shielding used to reduce the em field by barers which made of conductive or magnetic materials.
The shielding effect reduces the coupling of radio waves in em field.
materials used for em shielding include sheet metal, metal screen, and metal foam. Any holes in the shield or mesh must be smaller than the wavelength of the radiation that is keeping out, or the enclosure will not effectively approximate an unbroken conducting surface.
The material copper is used for radio frequency shielding
(As we know most non magnetic material ar dia magnetic)
because, it absorbs radio and electromagnetic waves. This is properly designed and constructed for copper (diamagnetic material) RF shielding enclosures satisfy most of the radio frequency shielding needs.
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