Review of Scientific Instruments最新文献

Characterization of the response of radiochromic film to quasi-monoenergetic x rays through a cross-calibration with image plates 通过与图像板进行交叉校准，确定放射性变色薄膜对准单能 X 射线的响应特性

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-20 DOI: 10.1063/5.0219340

B. I. Buschmann, M. Cufari, N. Vanderloo, J. Vargas, B. C. Foo, A. DeVault, S. G. Dannhoff, T. E. Evans, T. M. Johnson, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, C. W. Wink, L. Russell, M. Gatu Johnson, R. D. Petrasso, J. A. Frenje

{"title":"Characterization of the response of radiochromic film to quasi-monoenergetic x rays through a cross-calibration with image plates","authors":"B. I. Buschmann, M. Cufari, N. Vanderloo, J. Vargas, B. C. Foo, A. DeVault, S. G. Dannhoff, T. E. Evans, T. M. Johnson, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, C. W. Wink, L. Russell, M. Gatu Johnson, R. D. Petrasso, J. A. Frenje","doi":"10.1063/5.0219340","DOIUrl":"https://doi.org/10.1063/5.0219340","url":null,"abstract":"Radiochromic film (RCF) and image plates (IPs) are both commonly used detectors in diagnostics fielded at inertial confinement fusion (ICF) and high-energy-density physics (HEDP) research facilities. Due to the intense x-ray background in all ICF/HEDP experiments, accurately calibrating the optical density of RCF as a function of x-ray dose, and the photostimulated luminescence per photon of IPs as a function of x-ray energy, is necessary for interpreting experimental results. Various measurements of the sensitivity curve of different IPs to x rays have been performed [Izumi et al., Proc. SPIE 8850, 885006 (2013) and Rosenberg et al., Rev. Sci. Instrum. 90(1), 013506 (2019)]; however, calibrating RCF is a tedious process that depends on factors such as the orientation in which the RCF is scanned in the film scanner and the batch of RCF used. These issues can be mitigated by cross-calibrating RCF with IPs to enable the use of IPs for the determination of dose on the RCF without scanning the RCF. Here, the first cross-calibration of RCF with IPs to quasi-monoenergetic titanium, copper, and molybdenum K-line x rays is presented. It is found that the IP-inferred dose rates on the RCF for the Ti and Mo x rays agree well with the measured dose rates, while the IP-inferred dose rate for the Cu x rays is larger than the measured dose rate by ∼2×. Explanations for this discrepancy and plans for future work are discussed.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258102","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

Exploring photoionization of gas-phase free radicals with a widely tunable VUV laser at moderate spectral resolution 用光谱分辨率适中的宽调谐紫外激光器探索气相自由基的光电离现象

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-19 DOI: 10.1063/5.0217178

H. L. Le, N. L. Chen, M. Jiang, C. Le Bris, C. Charrière, S. Boyé-Péronne, J.-C. Loison, U. Jacovella, B. Gans

{"title":"Exploring photoionization of gas-phase free radicals with a widely tunable VUV laser at moderate spectral resolution","authors":"H. L. Le, N. L. Chen, M. Jiang, C. Le Bris, C. Charrière, S. Boyé-Péronne, J.-C. Loison, U. Jacovella, B. Gans","doi":"10.1063/5.0217178","DOIUrl":"https://doi.org/10.1063/5.0217178","url":null,"abstract":"The VUv Laser for Considering Astrophysical and Isolated Molecules (VULCAIMs) setup [Harper et al., Phys. Chem. Chem. Phys. 24, 2777 (2022)] integrates a narrow-bandwidth tunable vacuum ultraviolet (VUV) and extreme ultraviolet (XUV) nanosecond-pulsed laser system (6–16 eV) and a photoelectron spectrometer, designed for recording high-spectral-resolution (rotationally resolved) photoelectron spectra of gas-phase free radicals. This approach usually needs beforehand medium-resolution synchrotron data to guide the selection of specific spectral regions to be investigated at higher resolution with the VULCAIM setup. We present an upgraded version of the VUV laser system integrating an optical parametric oscillator for continuously scanned medium-resolution measurements (&lt;3 cm−1) across the whole VUV and XUV spectral ranges. This innovation enables broader coverage without the need to access synchrotron facilities. Furthermore, rapid mode switching allows for maintaining optimized radical production conditions from mid-resolution to high-resolution operation mode, enhancing spectroscopy capabilities significantly. The new capabilities of the VULCAIM setup are illustrated on two showcases of photoionization studies: the nitric oxide (NO) stable molecular species and the benzyl (C6H5CH2) free radical produced by pyrolysis.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258105","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 stretching apparatus with broad strain rate and temperature ranges for in-situ x-ray scattering measurements of polymers 用于聚合物原位 X 射线散射测量的拉伸装置，具有较宽的应变速率和温度范围

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-19 DOI: 10.1063/5.0201598

Yimin Lu, Erjie Yang, Jianhe Zhu, Shenghui Liu, Kunpeng Cui, Hang Guo, Liangbin Li

{"title":"A stretching apparatus with broad strain rate and temperature ranges for in-situ x-ray scattering measurements of polymers","authors":"Yimin Lu, Erjie Yang, Jianhe Zhu, Shenghui Liu, Kunpeng Cui, Hang Guo, Liangbin Li","doi":"10.1063/5.0201598","DOIUrl":"https://doi.org/10.1063/5.0201598","url":null,"abstract":"A stretching apparatus capable of conducting tensile tests over a broad strain rate range (10−3–250 s−1) and a wide temperature range (−75–250 °C) has been designed for polymeric materials, in particular the polymeric films. Specifically, this stretching apparatus can be combined with in situ ultrasmall-, small-, and wide-angle x-ray scattering (USAXS/SAXS/WAXS) measurements. The sample stretching is achieved through the synchronized rotation of rolls, powered by servo motors. The output electrical signal extracted from a torque sensor, when combined with the rotational speed of rolls and initial sample dimensions, enables the determination of the relationship between engineering stress (σ) and Hencky strain (ε). With the sample chamber and precise control loop, the prescribed temperature can be achieved using either hot airflow for heating or cold liquid nitrogen flow for cooling. By integrating this stretching apparatus with a high brilliance x-ray source at beamline BL10U1 in Shanghai Synchrotron Radiation Facility (SSRF) and detectors featuring ultrafast acquisition rates, it becomes possible to monitor multiscale structure evolutions of polymeric samples under harsh conditions involving high-speed loading combined with varying temperatures.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258106","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

First look at neutron emission shape characteristics of ignition hotspots at the National Ignition Facility (invited) 首次观察国家点火装置点火热点的中子发射形状特征（特邀）

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-19 DOI: 10.1063/5.0219550

Mora Durocher, Verena Geppert-Kleinrath, Christopher R. Danly, Carl H. Wilde, Gary J. Saavedra, Matthew S. Freeman, Valerie E. Fatherley, Emily F. Mendoza, Landon R. Tafoya, Petr L. Volegov, David N. Fittinghoff, Michael Rubery

{"title":"First look at neutron emission shape characteristics of ignition hotspots at the National Ignition Facility (invited)","authors":"Mora Durocher, Verena Geppert-Kleinrath, Christopher R. Danly, Carl H. Wilde, Gary J. Saavedra, Matthew S. Freeman, Valerie E. Fatherley, Emily F. Mendoza, Landon R. Tafoya, Petr L. Volegov, David N. Fittinghoff, Michael Rubery","doi":"10.1063/5.0219550","DOIUrl":"https://doi.org/10.1063/5.0219550","url":null,"abstract":"The nuclear imaging system has been capturing neutron images of inertial confinement fusion (ICF) driven implosions for over a decade at the National Ignition Facility. This imaging system has evolved from one to three nearly orthogonal lines-of-sight, allowing for the study of three-dimensional shape characteristics of ignition shots. Limited-view tomography algorithms help visualize the burning hotspot in 3D and assess neutron source geometry using Legendre mode parameters. With its neutron, gamma-ray, and x-ray image reconstruction capabilities, NIS has provided critical insight into mechanisms that have limited implosion performance, such as fill tube diameter for ignition-type targets. This comprehensive diagnostic suite opens a window into the shape characteristics of ignition shots and how symmetry affects ICF implosion performance. In more recent ignition shots, neutron yields have visibly increased. Analyzing the shape and size of the reconstructed neutron source has shown an expansion of the burn volume, which is indicative of more efficient alpha heating during the implosion process.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258104","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

Data streaming infra-red video bolometer (IRVB) of Korea Superconducting Tokamak Advanced Research (KSTAR) 韩国超导托卡马克先进研究（KSTAR）的红外视频辐射计（IRVB）数据流

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-18 DOI: 10.1063/5.0218942

Seungtae Oh, Yoonseong Han, Byron Peterson

{"title":"Data streaming infra-red video bolometer (IRVB) of Korea Superconducting Tokamak Advanced Research (KSTAR)","authors":"Seungtae Oh, Yoonseong Han, Byron Peterson","doi":"10.1063/5.0218942","DOIUrl":"https://doi.org/10.1063/5.0218942","url":null,"abstract":"Due to the increasing demands for active plasma control operations, in situ diagnostics are highly sought after. Tungsten plasma-facing components have been utilized in the Korea Superconducting Tokamak Advanced Research (KSTAR) lower divertor since the 2023 campaign. Plasma radiation is a key parameter for plasma control, especially in radiation front control experiments. Therefore, the KSTAR infra-red video bolometer (IRVB) needs to be reconfigured into an in situ data streaming diagnostic. This requires comprehensive changes in both infra-red camera control and data analysis compared to the previous system. To ensure the stability of the reconfigured system, functional parts are grouped and separated into individual processes to protect camera acquisitions from errors in other processes. In addition, to enhance the speed of data streaming analysis, the analysis code has been optimized and converted into graphics processing unit (GPU) code. Besides the data streaming analysis, the system is also designed to support post-shot analysis with the entire frame data for the same shot to address frame drop issues encountered during data streaming. Radiation front control experiments with N2 gas seeding are successful results of the data streaming IRVB for its commissioning. This paper focuses on the development of the data streaming IRVB system.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258107","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

Interframe-tunable ultrafast differential-displacement holography 帧间可调谐超快差分位移全息技术

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-18 DOI: 10.1063/5.0215907

T. M. Hutchinson, G. Righi, P. M. Celliers, S. J. Ali, C. P. McGuire, T. Perez, A. M. Rasmus

引用次数: 0

High speed fast-ion D-alpha spectrometer for the NSTX-U tokamak 用于 NSTX-U 托卡马克的高速快速离子 D-α 光谱仪

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-18 DOI: 10.1063/5.0219190

Aidan Edmondson, Ryan Albosta, Benedikt Geiger, Thomas Gallenberger, David Smith, W. W. Heidbrink, B. Stratton

引用次数: 0

A spectroscopic analysis code for spatially resolved x-ray absorption data from the COAX platform 用于 COAX 平台空间分辨 X 射线吸收数据的光谱分析代码

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-17 DOI: 10.1063/5.0219172

Dž. Čamdžić, H. M. Johns, P. M. Kozlowski, A. Elshafiey, C. J. Fontes, T. Byvank, T. J. Urbatsch, C. L. Fryer, D. H. Barnak, E. Feinberg, T. S. Perry, D. W. Schmidt, B. Y. Farhi, K. N. Love, N. S. Christiansen, J. Colgan, S. X. Coffing, J. Cowan, L. A. Goodwin, S. Edwards, F. Fierro, C. Wilson, R. B. Randolph, P. Donovan, T. Sedillo, J. Jorgenson, T. Morrow, V. A. Garcia, M. E. Sherrill, S. Finnegan, A. Marshall

{"title":"A spectroscopic analysis code for spatially resolved x-ray absorption data from the COAX platform","authors":"Dž. Čamdžić, H. M. Johns, P. M. Kozlowski, A. Elshafiey, C. J. Fontes, T. Byvank, T. J. Urbatsch, C. L. Fryer, D. H. Barnak, E. Feinberg, T. S. Perry, D. W. Schmidt, B. Y. Farhi, K. N. Love, N. S. Christiansen, J. Colgan, S. X. Coffing, J. Cowan, L. A. Goodwin, S. Edwards, F. Fierro, C. Wilson, R. B. Randolph, P. Donovan, T. Sedillo, J. Jorgenson, T. Morrow, V. A. Garcia, M. E. Sherrill, S. Finnegan, A. Marshall","doi":"10.1063/5.0219172","DOIUrl":"https://doi.org/10.1063/5.0219172","url":null,"abstract":"Sophisticated tools such as computer vision techniques in combination with 1D lineout type analyses have been used in automating the analysis of spectral data for high energy density (HED) plasmas. Standardized automation can solve the problems posed by the complexity of HED spectra and the quantity of data. We present a spectroscopic code written for automated and streamlined analysis of spatially resolved x-ray absorption data from the COAX platform on Omega-60. COAX uses radiographs and spectroscopic diagnostics to provide shock position and density information. We also obtain the more novel spectral-derived spatial profile of the supersonic radiation flow into a low-density foam. Considerable effort has been spent modernizing our previous spectroscopic analysis method, including the development of new tools characterized by a faster runtime and minimal user input to reduce bias and a testing suite for verifying the accuracy of the various functions within the code. The new code analyzes our spectroscopic images in 1–2 min, with added uncertainty and confidence.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258163","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

The effect of feed mechanisms on the structural design of flexible antennas, and research on their material processing and applications 馈电机制对柔性天线结构设计的影响及其材料加工和应用研究

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-17 DOI: 10.1063/5.0206788

Xueli Nan, Bolin Qin, Zhikuan Xu, Qikun Jia, Jinjin Hao, Xinxin Cao, Shixuan Mei, Xin Wang, Tongtong Kang, Jiale Zhang, Tingting Bai

{"title":"The effect of feed mechanisms on the structural design of flexible antennas, and research on their material processing and applications","authors":"Xueli Nan, Bolin Qin, Zhikuan Xu, Qikun Jia, Jinjin Hao, Xinxin Cao, Shixuan Mei, Xin Wang, Tongtong Kang, Jiale Zhang, Tingting Bai","doi":"10.1063/5.0206788","DOIUrl":"https://doi.org/10.1063/5.0206788","url":null,"abstract":"Flexible antennas are widely used in mobile communications, the Internet of Things, personalized medicine, aerospace, and military technologies due to their superior performance in terms of adaptability, impact resistance, high degree of freedom, miniaturization of structures, and cost-effectiveness. With excellent flexibility and portability, these antennas are now being integrated into paper, textiles, and even the human body to withstand the various mechanical stresses of daily life without compromising their performance. The purpose of this paper is to provide a comprehensive overview of the basic principles and current development of flexible antennas, systematically analyze the key performance factors of flexible antennas, such as structure, process, material, and application environment, and then discuss in detail the design structure, material selection, preparation process, and corresponding experimental validation of flexible antennas. Flexible antenna design in mobile communication, wearable devices, biomedical technology, and other fields in recent years has been emphasized. Finally, the development status of flexible antenna technology is summarized, and its future development trend and research direction are proposed.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258161","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

Ku-band 300 kW high power ferrite phase shifter Ku 波段 300 千瓦大功率铁氧体移相器

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2024-09-17 DOI: 10.1063/5.0211304

Xianggang Hu, Jiancang Su, Bing Bai, Zengqiang Yu, Xiaogang Lu, Mei Li, Rui Li, Jie Cheng, Jiande Zhang, Shaotong Wu

{"title":"Ku-band 300 kW high power ferrite phase shifter","authors":"Xianggang Hu, Jiancang Su, Bing Bai, Zengqiang Yu, Xiaogang Lu, Mei Li, Rui Li, Jie Cheng, Jiande Zhang, Shaotong Wu","doi":"10.1063/5.0211304","DOIUrl":"https://doi.org/10.1063/5.0211304","url":null,"abstract":"Phase shifter (PS) is a key component of a phased array antenna (PAA) system, which controls the microwave phase and realizes the antenna beam forming and scanning. A ferrite PS (FPS) is a current-controlled PS that uses the ferrite’s gyromagnetic properties to realize phase shifting. It has the advantages of short phase switching time, low microwave loss, and high reliability and, therefore, has been widely used in low-power PAA systems. However, the power handling capability of the traditional Ku-band FPS is only a few kW, prohibiting FPS from being used in high-power microwave (HPM) PAA systems. Spurred by this concern, this paper proposes a new dual-toroid FPS structure with an external magnetic excitation. By optimizing the PS configuration, improving the integration process, and enhancing the performance of ferrite materials, a single FPS in the Ku band has reached the power handling capability of more than 300 kW with an insertion loss of less than −1.2 dB, the phase shift range of 0°–360°, the width less than 11.5 mm, and the ability of a one-dimensional array. The FPS has the potential to be used in the PAA of an HPM system, laying a foundation for the research of the HPM PAA system.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258162","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