- A narrow stream of electrons traveling in the same direction, with approximately the same speed, and emitted from the same source. electric and/or magnetic fields are utilized to influence such a beam. electron beams are used, for example, in CRTs, klystrons, lasers, and for machining or drilling. Its abbreviation is E beam.
- abbreviation E beam
- noun a stream of high-energy electrons, used in food irradiation, sterilisation, welding and imaging
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