The Continuous Electron Beam Accelerator Facility at 12 GeV

IF 1.5 3区物理与天体物理 Q3 PHYSICS, NUCLEAR

Physical Review Accelerators and Beams Pub Date : 2024-08-15 DOI:10.1103/physrevaccelbeams.27.084802

P. A. Adderleyet al.

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引用次数: 0

Abstract

This review paper describes the energy-upgraded Continuous Electron Beam Accelerator Facility (CEBAF) accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing 88 superconducting cavities that have operated cw at an average accelerating gradient of

20 MV / m

. After reviewing the attributes and performance of the previous 6 GeV CEBAF accelerator, we discuss the upgraded CEBAF accelerator system in detail with particular attention paid to the new beam acceleration systems. In addition to doubling the acceleration in each linac, the upgrade included improving the beam recirculation magnets, adding more helium cooling capacity to allow the newly installed modules to run cold, adding a new experimental hall, and improving numerous other accelerator components. We review several of the techniques deployed to operate and analyze the accelerator performance and document system operating experience and performance. In the final portion of the document, we present much of the current planning regarding projects to improve accelerator performance and enhance operating margins, and our plans for ensuring CEBAF operates reliably into the future. For the benefit of potential users of CEBAF, the performance and quality measures for the beam delivered to each of the experimental halls are summarized in the Appendix.

Abstract Image

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12 GeV 连续电子束加速器设施

本文介绍了能量升级后的连续电子束加速器（CEBAF）。这台超导直线加速器增加了 11 个新的高性能低温模块，其中包含 88 个超导腔，在平均加速梯度为 20 MV/m 的条件下连续运行，从而实现了 12 GeV 的束流能量。在回顾了之前 6 GeV CEBAF 加速器的属性和性能之后，我们详细讨论了升级后的 CEBAF 加速器系统，并特别关注了新的束流加速系统。除了将每个直线加速器的加速度提高一倍之外，升级还包括改进束流再循环磁铁、增加氦冷却能力以允许新安装的模块在低温下运行、增加一个新的实验大厅以及改进加速器的许多其他组件。我们回顾了用于运行和分析加速器性能的几种技术，并记录了系统运行经验和性能。在本文件的最后部分，我们介绍了目前有关提高加速器性能和增加运行利润的项目规划，以及确保中欧生物技术中心未来可靠运行的计划。附录中总结了输送到每个实验大厅的光束的性能和质量指标，以方便 CEBAF 的潜在用户。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review Accelerators and Beams Physics and Astronomy-Surfaces and Interfaces

CiteScore

3.90

自引率

23.50%

发文量

158

审稿时长

23 weeks

期刊介绍： Physical Review Special Topics - Accelerators and Beams (PRST-AB) is a peer-reviewed, purely electronic journal, distributed without charge to readers and funded by sponsors from national and international laboratories and other partners. The articles are published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. It covers the full range of accelerator science and technology; subsystem and component technologies; beam dynamics; accelerator applications; and design, operation, and improvement of accelerators used in science and industry. This includes accelerators for high-energy and nuclear physics, synchrotron-radiation production, spallation neutron sources, medical therapy, and intense-beam applications.