Review of Scientific Instruments最新文献_第10页

Laser-plasma source of soft x-ray and extreme ultraviolet radiation for high precision reflectometry. 用于高精度反射测量的软x射线和极紫外辐射激光等离子体源。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0338151

Ivan Devyataykin, Nikolay I Chkhalo, Sergey Garakhin, Svyatoslav Morozov, Alexander Perekalov, Boris Ulasevich, Pavel Veprev

{"title":"Laser-plasma source of soft x-ray and extreme ultraviolet radiation for high precision reflectometry.","authors":"Ivan Devyataykin, Nikolay I Chkhalo, Sergey Garakhin, Svyatoslav Morozov, Alexander Perekalov, Boris Ulasevich, Pavel Veprev","doi":"10.1063/5.0338151","DOIUrl":"https://doi.org/10.1063/5.0338151","url":null,"abstract":"The paper presents the results of developing a laser-plasma source (LPS) for soft x-ray and extreme ultraviolet radiation intended for high-accuracy laboratory reflectometry. The design of key components of the LPS is described in detail. Plasma excitation is achieved using focused laser pulses with the following parameters: wavelength-1064 nm, pulse energy-800 mJ, duration-5 ns, frequency-10 Hz, divergence <5 mrad, impinging on a rotating solid target at an angle of 45° relative to normal incidence. To protect the optical input and monochromator optics from contamination by target debris, the vacuum chamber is equipped with magneto-gas-dynamic units. The source size measured as full width at half maximum (FWHM) was ∼56 μm, while the target surface oscillation amplitude during rotation was less than 5 μm. The operational wavelength range of the source spans 3-30 nm, within which spectral power density varies between 1 and 3 × 1013 photons/(0.1 nm × pulse × sr). The temporal stability of the signal over a 1-h observation period shows a standard deviation root-mean-square of 0.52%. The target lifetime is about one year.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149070022","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

Development of an integrated cryogenic diamond anvil cell for photoluminescence of CrSBr. 用于CrSBr光致发光的集成低温金刚石砧细胞的研制。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0337421

Luther J Langston, Jacob Hause, Carla Boix-Constant, Samuel Mañas-Valero, Eugenio Coronado, Janice L Musfeldt

{"title":"Development of an integrated cryogenic diamond anvil cell for photoluminescence of CrSBr.","authors":"Luther J Langston, Jacob Hause, Carla Boix-Constant, Samuel Mañas-Valero, Eugenio Coronado, Janice L Musfeldt","doi":"10.1063/5.0337421","DOIUrl":"https://doi.org/10.1063/5.0337421","url":null,"abstract":"We present the design and calibration of a cryogenic adapter for a diamond anvil cell (DAC) that enables optical spectroscopy under simultaneous low temperature and high pressure conditions. What differentiates our design from prior efforts is the straightforward construction and opportunity for rapid implementation using common cryogenic hardware. The motivation for this development work arose from room temperature photoluminescence measurements of CrSBr, a chalco-halide that exhibits strong quenching of the emission intensity on approach to the pressure-induced transition near 7.6 GPa. Normalized spectra reveal reversible red and blue shifts of the broad emission band with compression and decompression, consistent with pressure-tuned changes in the inter-layer interactions. To host such measurements, the cryo-DAC adapter provides thermally stable cryogenic operation (with either liquid nitrogen or helium) while maintaining optical access and precise pressure calibration. These measurements demonstrate that compression suppresses exciton-phonon coupling in CrSBr. Construction details, required instrumentation, pressure calibration using ruby fluorescence and temperature control are described. Typical cryogen consumption is 4-5 liters per run.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148866811","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 of a variable energy linac for alpha particle acceleration and medical radioisotope production. 用于α粒子加速和医用放射性同位素生产的可变能量直线加速器的设计。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0337817

F Grespan, C Baltador, L Bellan, M Comunian, M D'Andrea, J Esposito, L Ferrari, A Galatà, A Palmieri, G Pupillo, A Pisent, L Falbo, E Bressi, P Meliga, S Marangoni, C Priano, R Monferrato, L Sun, L Celona, G Castro, O Leonardi

引用次数: 0

Tungsten-rhenium thermocouple for temperature measurement in explosion field. 爆炸场测温用钨铼热电偶。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0336968

Deren Kong, Yunhan Zhang, Chundong Xu

{"title":"Tungsten-rhenium thermocouple for temperature measurement in explosion field.","authors":"Deren Kong, Yunhan Zhang, Chundong Xu","doi":"10.1063/5.0336968","DOIUrl":"https://doi.org/10.1063/5.0336968","url":null,"abstract":"The explosion of warheads generates a high-temperature and high-velocity flow field, and flow field temperature serves as one of the critical parameters characterizing the thermal damage capability of warheads; accurate measurement of explosion flow field temperature possesses prominent scientific research significance in weapon and ammunition engineering as well as safety protection engineering. Nevertheless, the explosion field is featured with ultrahigh temperature accompanied by shock wave pressure, which imposes severe limitations on the practical performance of most conventional sensors. In this paper, structural optimization, thermoelectric characteristic calibration, dynamic characteristic analysis, and open-field experimental tests are implemented to comprehensively investigate a thermocouple sensor tailored for temperature measurement under explosion environments. Experimental results verify that the developed sensor delivers favorable stability with a measurement uncertainty of 1.96% and outstanding dynamic performance with a response time of 2.74 ms; meanwhile, it achieves superior reliability under an extreme test condition with a peak temperature of 2697 °C and a shock wave pressure of 1.342 MPa, demonstrating promising prospects for practical engineering applications.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148913271","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

An algorithm for determining etch sequences for CR-39. CR-39刻蚀序列的确定算法。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0346819

P V Heuer, M Scott, H McClow, S T Ivancic, J R Davies, I Rudnick, R D Petrasso, E Doeg, M Gatu Johnson, J A Frenje

引用次数: 0

Interpretation of the Balmer series-limit recombination spectrum in the MAST-U divertor. MAST-U分流器中Balmer系列极限复合谱的解释。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0350239

E Delabie, S Menmuir, B Lomanowski, J D Lore, M G O'Mullane, E Pawelec, K Verhaegh

{"title":"Interpretation of the Balmer series-limit recombination spectrum in the MAST-U divertor.","authors":"E Delabie, S Menmuir, B Lomanowski, J D Lore, M G O'Mullane, E Pawelec, K Verhaegh","doi":"10.1063/5.0350239","DOIUrl":"https://doi.org/10.1063/5.0350239","url":null,"abstract":"The suite of spectrometers monitoring the lower divertor [Verhaegh et al., Nucl. Fusion 63, 016014 (2022)] on the MAST Upgrade tokamak has been extended before the start of the MU04 campaign. A new fiber bundle with good transmission in the near-Ultraviolet was installed to increase the number of instruments viewing the same radial profile in the divertor to a maximum of 4. This was done to accommodate a dedicated instrument to measure the Balmer series-limit recombination continuum around 365 nm. The ratio of the continuum above and below the recombination \"edge,\" as well as the spectral shape of the free-bound continuum, allows us to derive the electron temperature in recombining plasmas independently of the excitation pathways [Lomanowski et al., Plasma Phys. Controlled Fusion 62, 065006 (2020)]. The electron temperature is key to understanding heat exhaust processes in the divertor, which is essential for future fusion power plant design. A good diagnosis has been achieved of deeply detached, electron impact recombining plasmas, confirming Te = 0.05-0.3 eV [Verhaegh et al., Nucl. Fusion 63, 126023 (2023)]. The electron temperature derived from the wavelength dependence of the continuum below 365 nm is in good agreement with the electron temperature derived from the intensity ratios of the high-n Balmer lines for ne = 1018-1019 m-3. At higher divertor temperatures, molecular assisted recombination mechanisms dominate, and the emission of CD and C2 molecules dominates the spectra, making it difficult to extract the temperature from the continuum.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149075976","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

Development of a confocal spin-noise spectroscopy and magneto-optical Kerr effect imaging platform for probing magnetic fluctuations in two-dimensional magnetic heterostructures. 用于探测二维磁异质结构中磁波动的共聚焦自旋噪声光谱和磁光克尔效应成像平台的研制。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0345028

Gongling Chen, Pai Peng, Tengyue Ma, Shangjie Zhang, Chih-Chieh Wu, Le Zhao, Wanjun Jiang, Luyi Yang

{"title":"Development of a confocal spin-noise spectroscopy and magneto-optical Kerr effect imaging platform for probing magnetic fluctuations in two-dimensional magnetic heterostructures.","authors":"Gongling Chen, Pai Peng, Tengyue Ma, Shangjie Zhang, Chih-Chieh Wu, Le Zhao, Wanjun Jiang, Luyi Yang","doi":"10.1063/5.0345028","DOIUrl":"https://doi.org/10.1063/5.0345028","url":null,"abstract":"We present a confocal optical platform integrating three complementary modules, spin-noise spectroscopy (SNS), conventional magneto-optical Kerr effect (MOKE) magnetometry, and wide-field MOKE imaging, sharing a common focal plane. The system employs a wavelength-tunable (700-1000 nm), ultra-narrow-linewidth Ti:sapphire laser and achieves sub-micron spatial resolution. The wavelength-dependent MOKE measurements of Co20Fe60B20 (∼1 nm thick) heterostructures identify the optimal probe wavelength for SNS detection. At room temperature, spatially resolved spin-noise spectra reveal that magnetic noise arises primarily from domain-wall fluctuations, while noise inside domains is strongly suppressed. Temperature-dependent zero-field measurements across the spin reorientation transition reveal a suppression of low-frequency spin noise, reflecting the evolution of magnetic fluctuations as the magnetization rotates from out-of-plane to in-plane. This three-module SNS-MOKE platform enables magnetic-structure-selective studies of spin fluctuations in complex magnetic textures and provides a versatile framework for investigating fluctuation dynamics in two-dimensional magnetic materials, spin glasses, and artificial spin ice.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149070089","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

Refinement of an experimental technique for measuring birefringence by the polarization-dependent transmission method. 偏振相关透射法测量双折射实验技术的改进。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0340266

A Karandikar, S Wats, P Kumar

引用次数: 0

Raman laser self-heating technique for thermal characterization of two-dimensional materials. 二维材料热表征的拉曼激光自热技术。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0347921

Dechen Wei, Shuai Wu, Lei Zhao, Youlin Mao, Yunshan Zhao

{"title":"Raman laser self-heating technique for thermal characterization of two-dimensional materials.","authors":"Dechen Wei, Shuai Wu, Lei Zhao, Youlin Mao, Yunshan Zhao","doi":"10.1063/5.0347921","DOIUrl":"https://doi.org/10.1063/5.0347921","url":null,"abstract":"Accurate thermal conductivity characterization is essential for understanding heat transport mechanisms and optimizing thermal management in emerging low-dimensional materials. However, the determination of thermal conductivity components along different in-plane directions remains experimentally challenging and often requires specialized measurement configurations or complex thermal modeling. Here, we present a Raman laser self-heating technique capable of extracting in-plane thermal conductivities along multiple in-plane directions within a single measurement platform. In this approach, a focused Raman laser serves as a localized non-contact heating source, while the resulting steady-state thermal response is monitored through the integrated thermal sensing islands. A finite-element heat-transfer model is further established based on the actual device geometry, and the thermal conductivities are subsequently determined through inverse analysis using a particle swarm optimization algorithm. The proposed technique is validated using silicon nitride (SiNx) thin films, yielding thermal conductivity values within 5% of those measured by the suspended thermal bridge method. The Raman laser self-heating technique provides a practical and versatile approach for thermophysical property characterization of thin-film materials and can be readily extended to systems exhibiting anisotropic thermal transport.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149017925","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

Magnetic encoder error compensation based on a neural network-Kalman filtering hybrid framework. 基于神经网络卡尔曼滤波混合框架的磁编码器误差补偿。

IF 1.6 4区工程技术

Review of Scientific Instruments Pub Date : 2026-09-01 DOI: 10.1063/5.0332662

Song Jin, Yuliang Wang

{"title":"Magnetic encoder error compensation based on a neural network-Kalman filtering hybrid framework.","authors":"Song Jin, Yuliang Wang","doi":"10.1063/5.0332662","DOIUrl":"https://doi.org/10.1063/5.0332662","url":null,"abstract":"In industrial settings, magnetic encoders suffer from structural errors and random noise, making conventional angle demodulation methods that assume ideal sine-cosine signals hard to be both accurate and robust under complex conditions. Moreover, standard filters often fail in these scenarios because their static observation models and fixed noise parameters cannot adapt to structural distortions. To address this, this paper proposes a hybrid error compensation framework that integrates a neural network with an extended Kalman filter (NN-EKF). The neural network reconstructs signals that satisfy the quadrature relationship from noisy sine-cosine sequences sampled by the ADC and predicts the uncertainty parameters required by Kalman filtering. This provides the EKF with observation inputs and noise priors that are more consistent with its physical assumptions. Meanwhile, within an uncertainty-weighted multi-task learning framework, signal reconstruction and phase estimation are optimized jointly. Simulation results under mixed error conditions show that NN-EKF reduces the mean absolute error (MAE) by about 98% compared with arctangent demodulation and achieves lower MAE, RMSE, and maximum error than EKF, phase-locked loop, Kalman-Gradient Descent, and KalmanNet. On a hardware test platform, the proposed method achieves a maximum angle error of 0.0349°. Without target-sensor fine-tuning, NN-EKF reduces the RMSE by 84.2% and 83.1% on unseen tunneling magnetoresistance and Hall sensors. Furthermore, a lightweight lookup-table scheme constructed based on the NN-EKF output satisfies the real-time deployment requirements of embedded systems with only an additional error of ∼0.0022°, validating the engineering feasibility and practical potential of the proposed hybrid framework.","PeriodicalId":21111,"journal":{"name":"Review of Scientific Instruments","volume":"97 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148892146","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