1933
DOI: 10.1007/bf01330867
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Zur Fokussierbarkeit von Kathodenstrahlb�ndeln gro�er Ausgangsquerschnitte

Abstract: Es werden einfaehe geometrische Anordnungen vorgeschlagen, urn fokussierbare Kathodenstrahlbilndet mit grol3en Ausgangsquerschnitten zu erhalten. Der Strahlengang und die GrSl3e des Brennflecks sole, her Anordnungen wird unter der Annahme berechuet, d~l~ die Elektronen yon der Kathodenoberfls diffus und mit Geschwindigkeiten austreten, die fiber einen gewissen Bereich verteflt sein k5nnen. Die elnzelnen Anordnungen werden verglichen und es werden einige Fragen der praktischen Ausffihrung angeschnitten.Bei Kath… Show more

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Cited by 32 publications
(35 citation statements)
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“…We shall prove that for either the electron optical imaging systems with electrostatic focusing or electron optical imaging systems with electro-magnetic focusing, the paraxial temporal aberration of the first order is related only to electrostatic field strength at the photocathode, which will be still expressed by Eq. (16).…”
Section: Definition Of Temporal Aberrationsmentioning
confidence: 95%
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“…We shall prove that for either the electron optical imaging systems with electrostatic focusing or electron optical imaging systems with electro-magnetic focusing, the paraxial temporal aberration of the first order is related only to electrostatic field strength at the photocathode, which will be still expressed by Eq. (16).…”
Section: Definition Of Temporal Aberrationsmentioning
confidence: 95%
“…(16). The expressions of coefficients for paraxial temporal chromatic aberration of second order A 22 and coefficients for geometrical temporal aberrations of second order A 11 , A 13 , A 33 can be written as follows:…”
Section: Definition Of Temporal Aberrationsmentioning
confidence: 99%
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“…One is the Ruska [5] equation, in which ϕ is the variable, i.e. = f (ϕ) which can be written as following:…”
Section: Ray Equation and Its Solutionmentioning
confidence: 99%
“…For the static electron optics of a bi-electrode concentric spherical electrostatic system with electrostatic focusing, the previous works were given by Ruska [5] and Schagen [6], but all of these works remained at zero-order approximation of imaging. The more accurate formulae for the solution of electron trajectory and lateral aberrations of this system were given by Zhou in his monographs [6,7].…”
Section: Introductionmentioning
confidence: 99%