一种利用强烈的高能波动辐射的x射线束线。

IF 3 3区物理与天体物理

Journal of Synchrotron Radiation Pub Date : 2025-09-01 Epub Date: 2025-08-19 DOI:10.1107/S1600577525006903

Hirokatsu Yumoto, Takahisa Koyama, Hiroshi Yamazaki, Yasunori Senba, Yujiro Hayashi, Taito Osaka, Ichiro Inoue, Kenji Tamasaku, Shunji Goto, Makina Yabashi, Haruhiko Ohashi

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引用次数: 0

摘要

介绍了利用强、高能波动辐射的x射线光束线的设计、研制和性能。由150对3.33 nm周期Cr/C多层膜组成的双多层单色仪，通过从高阶谐波波动辐射中提取1%的能量带宽来提供强x射线。实验证实了3.4 × 1013 （1.3 × 1011）个光子s-1的高通量，光束尺寸为0.7 (0.3)mm（垂直）× 2.9 (~ 4) mm（水平），x射线能量为100 (267)keV，能量带宽为1.0%（1.2%）。通过高速成像分析，证明了高能高通量x射线束的优异性能。

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An X-ray beamline for utilizing intense, high-energy undulator radiation.

The design, development and performance of an X-ray beamline for utilizing intense, high-energy undulator radiation are presented. A double multilayer monochromator, consisting of 150 pairs of 3.33 nm periodic Cr/C multilayers, provides intense X-rays by extracting a 1% energy bandwidth from high-order harmonic undulator radiation. We experimentally confirmed a high flux of 3.4 × 10¹³ (1.3 × 10¹¹) photons s^-1 with a beam size of 0.7 (0.3) mm (vertical) × 2.9 (∼4) mm (horizontal) at an X-ray energy of 100 (267) keV with a 1.0% (1.2%) energy bandwidth. Excellent performance of the high-energy high-flux X-ray beam was proven by conducting high-speed imaging analysis.

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来源期刊

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.