17–22 May 2026
C.I.D
Europe/Zurich timezone

ELECTRON BEAM FORMATION IN A THERMIONIC ELECTRON GUN

SUP2016
17 May 2026, 14:00
4h
C.I.D

C.I.D

Poster Presentation MC2.T12: Photon sources: Beam Injection/Extraction and Transport Student poster session

Speaker

Serhii Kovalov (National Science Center Kharkiv Institute of Physics and Technology)

Description

This work presents the development of a collimated electron beam suitable for acceleration in dielectric laser accelerators (DLA). A thermionic electron gun was designed to produce a stable ~0.2 mm beam under high-vacuum conditions with electron energies of 10–47 keV. Beam emission and focusing parameters were optimized to enable reliable injection into compact accelerating structures. To ensure the required vacuum quality, a custom hydrogen-based leak detector was developed and successfully applied to identify and eliminate leakage in the beamline. Additionally, a beam deflection system and diagnostic tools for measuring beam current and electron yield were implemented and tested. The results confirm the feasibility of the proposed solutions and highlight the potential for further advancement of compact accelerator technology.
ACKNOWLEDGMENTS THE STUDY IS SUPPORTED BY THE NATIONAL RESEARCH FOUNDATION OF UKRAINE UNDER THE PROGRAM “EXCELLENT SCIENCE IN UKRAINE” (PROJECT # 2023.03/0182).

Funding Agency

ACKNOWLEDGMENTS THE STUDY IS SUPPORTED BY THE NATIONAL RESEARCH FOUNDATION OF UKRAINE UNDER THE PROGRAM “EXCELLENT SCIENCE IN UKRAINE” (PROJECT # 2023.03/0182).

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Author

Serhii Kovalov (National Science Center Kharkiv Institute of Physics and Technology)

Co-authors

Andrii Vasyliev (National Science Centre Kharkiv University) Gennadiy Sotnikov (National Science Center Kharkiv Institute of Physics and Technology) Ihor Beznosenko (National Science Centre Kharkiv University)

Presentation materials

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