[Elecraft] Fabricating a mu metal shield -- Caution!

[Francis Belliveau]

On: Wednesday, February 18, 2004 5:13 PM
"Stuart Rohre" <rohre@arlut.utexas.edu>


> Another solution to the need for magnetic shielding covers is to buy some
> self adhesive shielding called mu metal.   It is NOT cheap, but effective.
>
> Made by companies like Perfection Mica Co. for years for CRT shielding and
> other critical uses.
> ...
Constructing a shielded enclosure with this stuff is cannot be done without
understand the properties of this material.  Cutting, heating and bending
can significantly alter its shielding properties if not done correctly.  I
am not an expert, just somebody who received such cautions from a physicist
when attempting to install such a shield in a scanning electron microscope.

I suggest contacting an expert and discussing such things before wasting you
money on purchasing the raw material.

I'm just catching up on 2 weeks of old email and didn't see anything further
on the suggestion so I thought that I would at least publish the caution.

73,
Fran