{"title":"Vacuum-compatible sub-micrometer liquid flat-jet apparatus for soft x-ray spectroscopy.","authors":"Takashige Fujiwara, Katsumi Midorikawa","doi":"10.1063/5.0271492","DOIUrl":null,"url":null,"abstract":"<p><p>We have developed a vacuum-compatible liquid flat-jet apparatus that delivers stable, sub-micrometer sheets for soft-x-ray spectroscopy. Interchangeable PEEKsil microjets (ϕ 25-100 μm) collide to form a leaf-like jet that runs reproducibly for more than 6 h at ∼0.1 Pa. A stepper-motor-driven high-performance liquid chromatography pump, stop-and-go flow control, and anti-icing skimmer/catcher enable rapid restart without venting the vacuum. Spectral interferometry confirms jet thicknesses of 0.7 μm (ϕ 25 μm) and 1-2 μm for the standard ϕ 50 μm setup. The open design of the apparatus simplifies alignment and supports both transmission and grazing-incidence reflection modes. This apparatus provides a robust, user-friendly platform for ultrafast liquid-phase spectroscopy and surface-sensitive measurements.</p>","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 9","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Review of Scientific Instruments","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1063/5.0271492","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
We have developed a vacuum-compatible liquid flat-jet apparatus that delivers stable, sub-micrometer sheets for soft-x-ray spectroscopy. Interchangeable PEEKsil microjets (ϕ 25-100 μm) collide to form a leaf-like jet that runs reproducibly for more than 6 h at ∼0.1 Pa. A stepper-motor-driven high-performance liquid chromatography pump, stop-and-go flow control, and anti-icing skimmer/catcher enable rapid restart without venting the vacuum. Spectral interferometry confirms jet thicknesses of 0.7 μm (ϕ 25 μm) and 1-2 μm for the standard ϕ 50 μm setup. The open design of the apparatus simplifies alignment and supports both transmission and grazing-incidence reflection modes. This apparatus provides a robust, user-friendly platform for ultrafast liquid-phase spectroscopy and surface-sensitive measurements.
期刊介绍：
Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.
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