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electron gun working principle

electron gun diagram

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electron gun ppt

A high power electron gun capable of producing an e-beam over a. 100 square centimeter area has been designed and tested. Grid control of the e-beam provides 100 ns, 250 keV electron bursts through the foil in 100 ns intervals. Results of voltage and current measurements of the electron beam, as well as
the summary Table 4.7-1. The grid (G-1) provides the first control over the beam and usually can be used to shut off the beam. In an electron gun, if the grid . Manual. Manual control with grid dial potentiometer on front of power supply. Drawbacks: Slow and irregular. Not available on guns with positive grid or no cutoff.
An electron gun for a high-power electron linac in the. Japan nuclear cycle development institute (JNC) has been developed and tested. In this electron gun, two types of grid control systems (mesh grid type and double aperture grid type) were tested for their ability to deliver high average current beams. In this paper, we
The Electron Gun (Mono-Chrome). The unipotential gun can be broken down into two sections, the triode and the lens section. The triode is the electron-emitting and shaping section formed by the electron source (cathode), the control grid (G1) and the accelerator (G2). The lens of the unipotential design has three elements
The electron gun is a conventional thermionic triode electron gun which consists of an anode, a cathode and a grid. It is equipped with Y824 (EIMAC) cathode grid assembly. The electron gun system consists of an electron gun body, a high voltage power system, a high voltage deck, a pulser, a filament power and a control
Electron Gun: The electron gun section of the cathode ray tube provides a sharply focused electron beam directed :towards the fluorescent-coated screen. This section starts from theql1ally heated cathode, limiting the electrons. The control grid is give!! negative potential with respect to cathode dc. This grid controls the
Recently, I was asked to consider whether a control grid consisting of parallel or crossed wires could be added to an existing space-charge-limited electron gun for beam modulation. I identified two main questions: • Because considerable effort had been invested in the gun design, would it possible to add the grid without
The first 3un developed was the plasma cathode electron gun. The electron source in this device is a plasma generated within a low- voltage, hollow-cathode discharge: a thernmionic emitter is not required. Electrons extracted from the plasma pass through a triode-type control grid structure and are accelerated to high
voltages to the parts of the gun to produce and control the electron beam. DEFLECTION. FOCUS. ANODE. GRID. CATHODE. A typical mounted Electron Gun with electrostatic focusing and deflection (EFG-7, size 0.2 X), shown with. (A) a three-dimensional .. 1) Manual control with the dial potentiometer,. 2) Remote control
2- Power supply,. 3- Input circuitry (deflection amplifiers- time base circuit), and. 4- Oscilloscope controls. 3 CRT consists of three basic sections: ?Electron gun a)Triode section b) Focusing section. ? Deflection section. ? Screen. 6 Consists of a cathode, a grid, and an anode. Electrons emitted from the cathode toward

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February 2018