| Paper | Title | Page |
|---|---|---|
| MOPB005 | Design of Beam Dynamics for a High-Power DC Proton Accelerator at the MeV Level | 24 |
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| This paper aims to design the beam dynamics of a MeV-level high-power DC proton accelerator for use in high-voltage accelerators. The high-power proton accelerator has essential applications such as ion implantation equipment, neutron therapy equipment, and accelerator-based neutron source equipment. With the increasing use of high-voltage generators due to their stable and reliable operation, these accelerators have gained significant popularity in the field. The paper discusses the design considerations of the accelerator equipment, including the functions and requirements of the acceleration tube, electric field distribution, and voltage holding issues. Additionally, the paper focuses on the design aspects of beam optics, encompassing topics such as electric field distribution, beam focusing, beam transmission, divergence, and the impact of space charge effects on beam quality. Calculations and optimizations are performed based on the parameters and requirements specific to high-voltage accelerators. Finally, the paper presents and analyzes the results of the accelerator tube and beam optics design. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-SAP2023-MOPB005 | |
| About • | Received ※ 30 June 2023 — Revised ※ 09 July 2023 — Accepted ※ 11 July 2023 — Issued ※ 04 October 2024 | |
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MOPB020 |
Investigation of Multipole Field Effects and Cavity Shape Optimization for Lower Emittance in Rf Guns | |
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| The presence of multipole fields in an RF gun leads to an increase in the emittance and energy spread of the electron beam. In an RF gun with cylindrical symmetry, when fed through a single port, the quadrupole field components near the axis are larger than the dipole field components. In order to achieve lower emittance and energy spread, it is necessary to study the effect of cavity shape on the multipole fields and eliminate the impact of multipole fields on the electron beam emittance in the RF gun. In this paper, we investigated the multipole field components of three different cavity shapes, and ultimately found that both the racetrack-shaped cavity and the elliptical cylindrical cavity have smaller multipole field components compared to the cylindrical cavity. | ||
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