Aston dark space

Aston dark space

[′as·tən ¦därk ‚spās]
(electronics)
A dark region in a glow-discharge tube which extends for a few millimeters from the cathode up to the cathode glow.
References in periodicals archive ?
DC glow discharge includes of the separate regions, Aston dark space, cathode glow, cathode dark space, negative glow, faraday dark space, positive column, anode dark space.