atomic-beam frequency standard
atomic-beam frequency standard
[ə′täm·ik ‚bēm ′frē·kwən·sē ‚stan·dərd] (physics)
A source of precisely timed signals which are derived from an atomic-beam resonance, such as a cesium-beam cell or a hydrogen maser.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.