Electron optical apparatus, x-ray emitting device and method of producing an electron beam

Electron optical apparatus, x-ray emitting device and method of producing an electron beam

It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus (1) comprises the following components along an optical axis (25): a cathode with an emitter (3) having a substantially planar surface (9) for emitting el...

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Hauptverfasser: WOLFRAM MARING, STEFFEN HOLZAPFEL, STEFAN HAUTTMANN
Format: Patent
Sprache:chi ; eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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creator WOLFRAM MARING
STEFFEN HOLZAPFEL
STEFAN HAUTTMANN
description It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus (1) comprises the following components along an optical axis (25): a cathode with an emitter (3) having a substantially planar surface (9) for emitting electrons; an anode (11) for accelerating the emitted electrons in a direction essentially along the optical axis (25); a first magnetic quadrupole lens (19) for deflecting the accelerated electrons and having a first yoke(41); a second magnetic quadrupole lens (21) for further deflecting the accelerated electrons and having a second yoke(51); and a magnetic dipole lens (23) for further deflecting the accelerated electrons.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
title Electron optical apparatus, x-ray emitting device and method of producing an electron beam
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