Apparatus for keying in electron beams

Details Apparatus for keying in electron beams Apparatus for keying in electron beams

1978-08-10

1979-09-25

Dixon, Harold A.

Radiant energy

With charged particle beam deflection or focussing

Magnetic lens

250311, G21K 108

Patent

active

041692292

ABSTRACT:
In an illustrative embodiment an electron beam is keyed into an operative scanning path through a small aperture by applying keying signals of opposite polarity to respective symmetrically arranged meander conductors. The keying signals produce respective traveling waves which periodically come into proximity to the beam electrons (in synchronism with beam velocity) at successive points along the beam path. The opposite potentials of the meander conductors except during keying operations produce transverse fields at the interaction points which progressively deflect the beam out of its operative path. During key-in, the effective deflection field on a beam electron packet is abruptly decreased in magnitude at each successive interaction point while the symmetrical arrangement of the meander conductors along the beam axis avoids the production of a longitudinal field component which would provide an adverse defocussing effect on the beam electrons.

REFERENCES:
"A New Type of Traveling Wave Deflection System" by Yamada et al., IEEE Trans. on Electron Devices, vol. ED-19, No. 2, Feb. 1972, pp. 204-213.

Affiliated with

Also associated with

Rating

Apparatus for keying in electron beams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for keying in electron beams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for keying in electron beams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1986739