Review of Scientific Instruments最新文献

In situ calibration of charge exchange spectroscopy and measurements of absolute density profiles in the plasma with high boron concentration. 电荷交换光谱的原位校正和高硼浓度等离子体中绝对密度剖面的测量。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0270966

M Yoshinuma, K Ida, M Goto, T Kawate, Y Kawamoto, N Tamura, S Masuzaki, H Noto, S Takayama, M Osakabe

引用次数: 0

A platform for high-bandwidth nanopore sensing with thermal control and low electrical noise. 一种具有热控制和低电噪声的高带宽纳米孔传感平台。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0252569

Dmytro Lomovtsev, Liqun He, Matthew Waugh, Raphael St-Gelais, Vincent Tabard-Cossa

{"title":"A platform for high-bandwidth nanopore sensing with thermal control and low electrical noise.","authors":"Dmytro Lomovtsev, Liqun He, Matthew Waugh, Raphael St-Gelais, Vincent Tabard-Cossa","doi":"10.1063/5.0252569","DOIUrl":"https://doi.org/10.1063/5.0252569","url":null,"abstract":"We present an instrument capable of performing high-bandwidth (1 MHz) solid-state nanopore measurements in a temperature-controlled environment ranging from ambient to 95 °C while maintaining low electrical noise. In previous systems, the ability to control the temperature of the analyte solution during nanopore sensing has come at the expense of significantly greater electrical noise. As a consequence, increased filtering requirements or, equivalently, reduced bandwidths ultimately decrease the utility of such instruments for biosensing applications. Here, we describe in detail the system we have developed that overcomes these difficulties. In particular, we are able to precisely control the temperature of the solution in which a nanopore sensor is immersed by using a closed-loop fluidics system. The ultra-low electrical conductivity heat transfer fluid is used to bring heat from outside of the Faraday cage to the nanopore sensor within the cage, resulting in minimal electrical noise during high-bandwidth measurements while maintaining localized temperature control. As proof-of-concept, we characterize silicon nitride nanopore stability over time at elevated temperatures using electrical measurements and present single-molecule data showing the impact of temperature on capture rate, dwell time, and blockage depth. This tool can unlock the ability to perform a wide range of temperature-sensitive biophysical experiments with solid-state nanopores.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 8","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A reflection zone plate for parallelized soft x-ray spectroscopy at the Fe L3-edge. 平行软x射线光谱在Fe l3边缘的反射带板。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0268538

C Braig, A Fernández Herrero, M Brzhezinskaya, J Probst, C Seifert

{"title":"A reflection zone plate for parallelized soft x-ray spectroscopy at the Fe L3-edge.","authors":"C Braig, A Fernández Herrero, M Brzhezinskaya, J Probst, C Seifert","doi":"10.1063/5.0268538","DOIUrl":"https://doi.org/10.1063/5.0268538","url":null,"abstract":"We design an advanced reflective-diffractive optical element (DOE) for high-resolution, parallelized soft x-ray spectroscopy of, e.g., transition metals, here optimized for the Fe L3-edge around 706.8 eV, and demonstrate its functionality in simulations. Based on a \"hybrid\" reflection zone plate (RZP) on a spherical substrate, which maintains aberration-corrected focusing under a wide angular acceptance of 8.5 msr, slightly slanted grating grooves transpose the wavelength dispersion in the (-1)st diffraction order from the vertical (z) direction partially into the horizontal (y) direction, and the signal can be read out at MHz rates from a pixelated (50 μm) line detector behind an exit slit. As an advantage over conventional variable line-space gratings of equal aperture, constant resolving power is achieved across the full range of 695-715 eV. The transmission efficiency Pt and the energy resolution ΔE scale in proportion to the adjustable slit width Δh. For a source of (1.0 × 0.3) μm2 in size and Δh = 5 μm, we expect from simulations Pt ≈ 0.3% and ΔE ≈ 0.26 eV, with great potential for their ratio Pt/ΔE to be tuned. The substrate curvature of 4.5 m and the line densities ≲7.19 × 102 mm-1 are compatible with the fabrication of the Ni-coated RZP by laser lithography. In-vacuum and tabletop operation are supported by an optical path length of 490 mm. We derive the vector field of the DOE, simulate its optical function, and characterize the performance for a variable source size. Conceptual extensions for laboratories and large-scale facilities are discussed.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 8","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and analysis of a high-precision uniform field scanning micro-motion platform for ultra-high field magnetic resonance imaging. 超高场磁共振成像高精度均匀场扫描微动平台的设计与分析。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0272065

Zhiheng Ren, Zijie Lin, Jiulong Zhang, Yongsuo Liu, Yuhu Bu, Zhaoyao Gao, Zhan Zhang, Chao Zhou, Shengquan Xue

{"title":"Design and analysis of a high-precision uniform field scanning micro-motion platform for ultra-high field magnetic resonance imaging.","authors":"Zhiheng Ren, Zijie Lin, Jiulong Zhang, Yongsuo Liu, Yuhu Bu, Zhaoyao Gao, Zhan Zhang, Chao Zhou, Shengquan Xue","doi":"10.1063/5.0272065","DOIUrl":"https://doi.org/10.1063/5.0272065","url":null,"abstract":"To meet the scanning requirements for ultra-high magnetic field strength (≥7 T) and high uniformity within Magnetic Resonance Imaging (MRI) equipment, this paper presents the design and implementation of a fully automated five-axis micro-positioning platform with a positioning accuracy of 50 μm. The platform enables full-area magnetic field measurement inside MRI devices via high-precision automatic scanning, providing data assurance for the precise current loading of the homogeneous field system. A systematic design of the motion actuator, probe fine-tuning mechanism, and probe rod of the micro-motion platform is described, utilizing 3D modeling software. A three-dimensional model of the micro-motion platform driven by a ball screw is established, and its static, dynamic, and vibration characteristics are analyzed via finite element analysis. The results show that the design scheme exhibits excellent mechanical properties, dynamic characteristics, and stability. The micro-motion platform has been successfully applied and tested on a 7 T MRI system, enabling precise scanning of magnetic field data. This study offers design insights for magnetic field scanning devices in magnetic resonance equipment.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 8","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Feasibility study on contactless infusion pump based on giant magnetostrictive actuator. 基于超磁致伸缩执行器的非接触式输液泵的可行性研究。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0253490

Xuhui Liu, Xiangbo Han, Yuge Fu, Wenli Wang, Zhendong Ma, Yan Wu

引用次数: 0

Stabilizing an optical cavity containing a bulk diamond crystal at millikelvin temperatures in a cryogen-free dilution refrigerator. 在无低温稀释冰箱中稳定含有大块金刚石晶体的光学腔。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0265492

Tatsuki Hamamoto, Amit Bhunia, Hiroki Takahashi, Yuimaru Kubo

引用次数: 0

Ultrathin glass as a continuously replaceable debris shield for laser systems. 超薄玻璃作为激光系统连续可更换的碎片屏蔽。

IF 1.7 4区工程技术

Review of Scientific Instruments Pub Date : 2025-08-01 DOI: 10.1063/5.0268950

Sadaoki Kojima, Hironao Sakaki, Norihiro Inoue, Hiroyoshi Kuroki, Yusuke Shimizu, Hisanori Harada, Thanh Hung Dinh, Masayasu Hata, Noboru Hasegawa, Michiaki Mori, Masahiko Ishino, Hiromitsu Kiriyama, Yasuhiro Miyasaka, Masaharu Nishikino, Masaki Kando, Toshiyuki Shirai, Kiminori Kondo

{"title":"Ultrathin glass as a continuously replaceable debris shield for laser systems.","authors":"Sadaoki Kojima, Hironao Sakaki, Norihiro Inoue, Hiroyoshi Kuroki, Yusuke Shimizu, Hisanori Harada, Thanh Hung Dinh, Masayasu Hata, Noboru Hasegawa, Michiaki Mori, Masahiko Ishino, Hiromitsu Kiriyama, Yasuhiro Miyasaka, Masaharu Nishikino, Masaki Kando, Toshiyuki Shirai, Kiminori Kondo","doi":"10.1063/5.0268950","DOIUrl":"https://doi.org/10.1063/5.0268950","url":null,"abstract":"High-repetition-rate laser systems require continuous protection of optical components from debris generated during laser-matter interactions. Conventional debris shields offer high optical quality at the cost of inflexible replacement mechanisms or allow easy roll-based replacement but suffer from degraded wavefront performance. In this study, we evaluated the feasibility of ultrathin glass, originally designed for flexible electronic applications, as a continuously replaceable debris shield combining excellent optical and mechanical properties. The optical transmission, wavefront error, and polarization behavior of 50-μm-thick ultrathin glass were characterized and benchmarked against fused silica and nitrocellulose film shields. The ultrathin glass showed high UV-NIR transmittance, minimal wavefront distortion (λ/5 PV, λ/20 RMS), and no observable birefringence. A compact roll-to-roll transport system was developed to support continuous shield renewal in vacuum. Optical stability was tested under active motion using a Ti:sapphire laser delivering 1-J and 40-fs pulses at 10 Hz. The beam pointing deviation remained below 40 µrad during shield translation. Furthermore, high-intensity ion acceleration experiments verified that the shield maintained stable focusing and target interaction over 4000 shots. Degradation was limited to the transmittance loss from debris accumulation with no laser-induced damage. The proposed shield system supports over 300 000 shots with a 20-m-long roll, which can be scaled to hundreds of meters for extended operation. These results demonstrate the viability of ultrathin glass as a practical and scalable debris protection solution for future laser facilities.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 8","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new method for the measurement of low outgassing rate of materials based on torsion balance. 基于扭力天平的低放气率测量新方法。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-07-01 DOI: 10.1063/5.0271558

Jian Lin, Wen-Hai Tan, Zheng-Jie An, Zhi-Jie Lu, Ming-Guang Fu, Jin-Xuan Luan, Jian-Ping Liu, Shan-Qing Yang

{"title":"A new method for the measurement of low outgassing rate of materials based on torsion balance.","authors":"Jian Lin, Wen-Hai Tan, Zheng-Jie An, Zhi-Jie Lu, Ming-Guang Fu, Jin-Xuan Luan, Jian-Ping Liu, Shan-Qing Yang","doi":"10.1063/5.0271558","DOIUrl":"https://doi.org/10.1063/5.0271558","url":null,"abstract":"Outgassing, defined as the continuous release of gas molecules from the surface of materials, is a common issue in vacuum research. Although the quantity of desorbed molecules is generally small, its impact becomes significant in high-precision scientific missions, such as the space-borne gravitational-wave (GW) detection. The detailed evaluation of this noise source relies on the outgassing rate for materials applied, while the current measurement methods all show insufficient precision, lacking practicability in measuring small-sized samples. In this paper, a new outgassing rate measurement method based on high-precision torsion balance is proposed. Unlike the general methods that rely on monitoring pressure variation, this approach detects the extremely weak force exerted by the released gas molecules. Verified through principle experiments, the detection limit for the present apparatus can be evaluated to be better than 1.9 × 10-12 Pa m3/s in water molecule equivalent at room temperature. The typical test results show a measurement uncertainty of less than 4%. In addition, the apparatus can monitor the fluctuation of outgassing rate with a noise level of 3 × 10-11 Pa m3/s/Hz in the mHz frequency band. In conclusion, this first-time proposed method is especially valuable for studying the outgassing rate of small-sized samples. It can be applied in the monitor of outgassing of the inertial sensor used in the space-borne GW detection during the on-ground testing and in other high vacuum demanded scientific missions.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 7","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144643279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rotating waveplate Stokes polarimeter using anisotropic transmittance in waveplate. 利用波片各向异性透过率的旋转波片斯托克斯偏振计。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-07-01 DOI: 10.1063/5.0272881

Ryota Imazawa, Shun Kamiya, Yoshihiko Nunoya

引用次数: 0

Design, modeling, and experimental evaluation of a piezoelectric actuator based on four-stage magnifying mechanism. 基于四级放大机构的压电驱动器的设计、建模和实验评估。

IF 1.3 4区工程技术

Review of Scientific Instruments Pub Date : 2025-07-01 DOI: 10.1063/5.0267690

Dongmei Xu, Guoxu Li, Simiao Yu, Qianyi Zhang, Zejie Liu, Zhenye Zhang, Zhaohui Yao

{"title":"Design, modeling, and experimental evaluation of a piezoelectric actuator based on four-stage magnifying mechanism.","authors":"Dongmei Xu, Guoxu Li, Simiao Yu, Qianyi Zhang, Zejie Liu, Zhenye Zhang, Zhaohui Yao","doi":"10.1063/5.0267690","DOIUrl":"https://doi.org/10.1063/5.0267690","url":null,"abstract":"This study designs a novel piezoelectric actuator (PA) and models and experimentally evaluates it, which improves the output stroke and driving efficiency. A four-stage magnifying mechanism with an ingenious structure is utilized to magnify the displacements of the piezoelectric material stacks. Rhombic, lever, triangular, and lever mechanisms form the four-stage magnifying mechanism. The proposed PA has two driving feet, and a guide rail is driven to move twice within one driving period under the proposed working principle. This structure and principle allow for large stroke, high velocity, and highly efficient driving. Theoretical model and finite element analysis are created to determine magnification ratio and optimize structural design. Experiments including step performance, load performance, and the influence of pretightening force on output performance are conducted. A maximum driving velocity of 11.34 mm/s is obtained through experiment. The resolution and maximum load capacity is tested to be of 120 nm and 0.25 N, respectively. This study has developed a long stroke, high-velocity, and high-efficiency linear PA with a relatively simple structure and working principle.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"96 7","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144660056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0