secondary emissions

Discussion in 'General Electronics Chat' started by questioner, Nov 2, 2004.

  1. questioner

    Thread Starter New Member

    Nov 2, 2004
    Is it true that all electronic circuits (large and small) emit ions? If so and depending on the circuit size, are these at levels that can be detected by common ion detectors on the market (10 ions per cubic centimeter and higher)?

    Or is the detection of magnetic fields a surer way of detecting electronic circuits (since all circuits generate magnetic fields)?

  2. beenthere

    Retired Moderator

    Apr 20, 2004

    No idea about the ions - but I can't see any reason that there would be any such emission without high potentials.

    Using a Hall effect device would be the better method, assiming the circuit in question was operating. Looking for the pilot lamp is pretty effective, too.