10 a beam current electron gun design for a high-power electron linac

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Yousefpour Lalemi P.; Sanaye Hajari Sh.; Zarei S.; Ghasemi F.; Abbasi Davani F.

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Journal Paper

Paper Information

Journal: Journal of Nuclear Science, Engineering and Technology Year:2024 | Volume:45 | Issue:1 Page(s): 176-184

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Information Journal Paper

Title

10 a beam current electron gun design for a high-power electron linac

Author(s)

Keywords

High Current e-Gun

beam quality

Emittance growth

High power electron linear accelerator

Abstract

The development of electron beam applications motivates electron gun research. In addition to the beam energy and current, its quality also plays a significant role in the spread of electron guns. Herein, we present the design of an electron gun for use as an electron source in a linear accelerator with high beam current and quality. In this design, starting with the Pierce geometry, a stay-by-stay optimization based on the physics governed by the beam behavior has been carried out to control the Emittance growth and get a beam of outstanding quality. In particular, non-linear transverse force, space charge effect, and spherical aberration are considered. This resulted in a threefold improvement in the beam quality as measured by the beam emittance.

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