梯形 RFQ 和 IH-DTL 耦合结构的横梁动力学设计和误差研究

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-01 DOI:10.1088/1748-0221/19/05/p05033

H.P. Li, H.Q. Su, G. Kong, W. L. Pan, J.R.L. Lin, Y.R. Lu, S. Wang

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引用次数: 0

摘要

我们提出了梯形射频四极杆（RFQ）和数字间 H 型漂移管直列加速器（IH DTL）耦合结构，以高加速梯度和一个射频馈入系统将质子束加速到几 MeV。设计的梯形 RFQ-IH DTL 耦合结构可将质子束加速到 2.5 MeV，峰值电流为 15 mA。为了实现高传输效率和小发射增长，对梯形 RFQ、耦合部分和 IH DTL 部分进行了详细的动力学优化和误差研究。IH-DTL 部分采用了带有两个四极双极（QD）的 Kombinierte Null Grad Struktur（KONUS）动力学方案。开始到结束的束流跟踪结果表明，质子束可以加速到最终能量，长度为 2.11 米，传输效率超过 98.5%。此外，我们还进行了误差敏感性分析和组合误差研究，以评估梯形 RFQ-IH DTL 耦合结构的误差容限。

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Beam dynamics design and error study of the coupled structure with ladder RFQ and IH-DTL

The coupled structure with ladder radio-frequency quadrupole (RFQ) and interdigital H-type drift tube linac (IH DTL) has been proposed to accelerate the proton beam to several MeV with high acceleration gradient and one RF feed-in system. A ladder RFQ-IH DTL coupled structure was designed to accelerate a proton beam 2.5 MeV with a peak current of 15 mA. Detailed dynamics optimization and error study were performed to achieve high transmission efficiency and small emittance growth, including ladder RFQ, coupling section and IH DTL section. The Kombinierte Null Grad Struktur (KONUS) dynamics scheme with two quadrupole doublets (QDs) was adopted in the IH-DTL section. Start-to-end beam tracking results showed that the proton beam can be accelerated to the final energy with a length of 2.11 m and a transmission efficiency above 98.5%. In addition, we performed error sensitivity analysis and the combined error study to evaluate the error tolerance limits of the ladder RFQ-IH DTL coupled structure.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.