Method and apparatus for deflecting and focusing a charged particle stream

摘要: A method and apparatus is disclosed for electrostatic deflection focusing of a charged particle stream. The can include plural vertical horizontal plates, although single plate each with reference potential plane are preferred. Both orthogonal preferably tilted display screens employed to receive the deflected beam. stream injected offset from centered position asymmetrically relative attracting plate. Two alternately preferred computer programs employable calculate an position. external quadrupole correct any residual astigmatism in In one embodiment, disposed cathode ray tube. reduced footprint CRT also disclosed. Methods apparatuses energy filtered electron beam, mass spectrometer separator