放射治疗用电子直线加速器的研制。1、阴极反轰击效应的抑制

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Moscow University Physics Bulletin Pub Date : 2025-01-17 DOI:10.3103/S0027134924701960

D. S. Yurov, M. A. Borisov, A. S. Alimov, A. N. Ermakov, A. N. Kamanin, N. I. Pakhomov, A. S. Simonov, Ya. Yu. Filippov, V. A. Khankin, V. I. Shvedunov, I. V. Shvedunov, N. V. Shvedunov

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引用次数: 0

摘要

本文致力于开发用于放射治疗复合物“缟玛瑙”的电子直线加速器。简要介绍了该加速器，并重点介绍了其开发过程中遇到的主要问题。本文的核心是解决其中最关键的问题，即电子枪阴极的反向轰击，导致电子枪电流和轫致辐射剂量率随时间的不稳定。对加速结构和电子枪的设计进行了改进，消除了反轰击问题，实现了轫致辐射参数所需的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Development of an Electron Linac for Radiation Therapy. I. Suppression of Cathode Back-Bombardment Effect

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Development of an Electron Linac for Radiation Therapy. I. Suppression of Cathode Back-Bombardment Effect

The article is devoted to the development of an electron linac for the radiation therapy complex ‘‘Onyx.’’ A brief overview of the accelerator is provided, and the main problems encountered during its development are highlighted. The core of the article addresses the solution to the most critical of them, related to the back bombardment of the electron gun cathode, which led to instability in the gun current and the bremsstrahlung dose rate over time. The modifications made to the design of the accelerating structure and electron gun, which helped eliminate the back-bombardment problem and achieve the required stability of the bremsstrahlung parameters, are described.

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来源期刊

Moscow University Physics Bulletin PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

0.00%

发文量

129

审稿时长

6-12 weeks

期刊介绍： Moscow University Physics Bulletin publishes original papers (reviews, articles, and brief communications) in the following fields of experimental and theoretical physics: theoretical and mathematical physics; physics of nuclei and elementary particles; radiophysics, electronics, acoustics; optics and spectroscopy; laser physics; condensed matter physics; chemical physics, physical kinetics, and plasma physics; biophysics and medical physics; astronomy, astrophysics, and cosmology; physics of the Earth’s, atmosphere, and hydrosphere.