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Thread: blocking magnetism

  1. #1 blocking magnetism 
    New Member
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    is there any material which can stop or weaken a magnetic field?


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  3. #2  
    Forum Ph.D.
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    Iron


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  4. #3  
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    Low frequency magnetic fields are very difficult to shield well.

    In our Linear Accelerator control room our CRTs would slowly
    oscillate [contract and expand by some 2 % ] because
    of the magnetic fields that focus the charged particles/ions.

    It is a nasty problem to deal with.
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  5. #4  
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    strongly ferromagnetic materials will bend magnetic lines of force into them, and therefore provide some shielding to outside material. also, a strong diamagnetic material (like superconductor) could be used to "repel" magnetic field along it's phisical borders, therefore not allowing it to expand outside.
    Brain is muscle that can move the world.
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  6. #5  
    Forum Bachelors Degree
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    isn't it just as difficult to shield high frequency ones as they pass through the gaps between the atoms in question?
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