中等能量同步加速器光源在操作光束强度下的最终亮度。

IF 2.5 3区 物理与天体物理
Journal of Synchrotron Radiation Pub Date : 2025-05-01 Epub Date: 2025-04-23 DOI:10.1107/S1600577525002723
Victor Smaluk, Timur Shaftan, Dean Hidas
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引用次数: 0

摘要

同步加速器光源是现代科学的关键工具,为不同科学学科的开创性研究提供了独特的机会,并推动了众多科学和技术领域的创新。第四代光源在成像、光谱学和衍射技术方面提供了前所未有的能力。最终亮度是推进到更小的规模,更快的响应,更高的数据测量和处理速率的关键。其亮度主要由电子束发射度和工作强度下的能量扩散决定。第四代同步加速器的一个共同特点是电子束的长度很短,横向束流尺寸很小。因此,高粒子密度导致强烈的集体效应,显著增加了发射度,并限制了在操作光束强度下可实现的亮度。在本文中,我们总结了我们的研究,发射度和亮度与波束能量和强度成比例,考虑到高谐波射频系统提供的波束内散射、波束阻抗相互作用和束束延长的影响,以确定机器和波束参数的最佳组合。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultimate brightness of a medium-energy synchrotron light source at operational beam intensity.

Synchrotron light sources are key instruments of modern science, providing unique opportunities for groundbreaking studies in diverse scientific disciplines and driving innovation in numerous scientific and technological fields. Fourth-generation light sources provide unprecedented capabilities in imaging, spectroscopy and diffraction techniques. Ultimate brightness is the key to advancing to a smaller scale, faster response, and higher data measurement and processing rate. The brightness is primarily determined by the electron beam emittance and energy spread at operational intensity. A common feature of fourth-generation synchrotrons is the short length of the electron bunches combined with a very small transverse beam size. Consequently, the high particle density leads to strong collective effects that significantly increase the emittance and limit the achievable brightness at operational beam intensity. In this article, we summarize our studies of the emittance and brightness scaled with the beam energy and intensity, taking into account the effects of intrabeam scattering, beam-impedance interaction and bunch lengthening provided by higher-harmonic RF systems to identify optimal combinations of machine and beam parameters.

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来源期刊
Journal of Synchrotron Radiation
Journal of Synchrotron Radiation INSTRUMENTS & INSTRUMENTATIONOPTICS&-OPTICS
CiteScore
5.60
自引率
12.00%
发文量
289
审稿时长
1 months
期刊介绍: Synchrotron radiation research is rapidly expanding with many new sources of radiation being created globally. Synchrotron radiation plays a leading role in pure science and in emerging technologies. The Journal of Synchrotron Radiation provides comprehensive coverage of the entire field of synchrotron radiation and free-electron laser research including instrumentation, theory, computing and scientific applications in areas such as biology, nanoscience and materials science. Rapid publication ensures an up-to-date information resource for scientists and engineers in the field.
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