Instruments and Experimental Techniques最新文献_第2页

A Mobile VLBI Station Receiving System 一种移动VLBI站接收系统

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700636

M. B. Zotov, Yu. V. Vekshin, A. S. Lavrov, M. A. Maslov, I. A. Pozdnyakov, E. Yu. Khvostov

引用次数: 0

Laboratory Setup for Studying the Interaction of Two Conducting Spheres 研究两个导电球体相互作用的实验室装置

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700582

E. G. Apushkinskii, E. V. Gol’dberg, V. P. Savel’ev, A. S. Sklyarova

引用次数: 0

Use of a Software-Defined Radio System for Processing the Multichannel Grid Detector Signal 使用软件定义无线电系统处理多通道网格探测器信号

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S002044122670065X

M. P. Kalaev, A. M. Telegin

引用次数: 0

Two Operation Modes of a Gas Proportional Counter when Registrating Single-Electron Events 气体比例计数器在记录单电子事件时的两种工作模式

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700673

A. V. Kopylov, I. V. Orekhov, V. V. Petukhov, A. E. Solomatin

引用次数: 0

Registration of Solar Radiation in the 8–14-μm Atmospheric Transparency Window Using the Technical Background of the “Solntse-Terahertz” Scientific Instrumentation 基于“soltse - terahertz”科学仪器技术背景的8-14 μm大气透明窗太阳辐射配准

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700740

M. V. Philippov, V. S. Makhmutov, G. I. Kropotov, A. A. Shakhmin, V. K. Iliasov, M. V. Razumeyko, E. D. Tulnikov, S. V. Sokov

引用次数: 0

A Pulse-Periodic Source of Nanosecond Microwave Pulses Based on a Corrugated Transmission Line with a Saturated Ferrite 基于饱和铁氧体波纹传输线的纳秒微波脉冲周期源

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700715

P. V. Priputnev, I. V. Romanchenko, V. Yu. Konev, R. K. Sobyanin, Yu. A. Andreev, V. V. Plisko

{"title":"A Pulse-Periodic Source of Nanosecond Microwave Pulses Based on a Corrugated Transmission Line with a Saturated Ferrite","authors":"P. V. Priputnev, I. V. Romanchenko, V. Yu. Konev, R. K. Sobyanin, Yu. A. Andreev, V. V. Plisko","doi":"10.1134/S0020441226700715","DOIUrl":"10.1134/S0020441226700715","url":null,"abstract":"A nanosecond microwave pulse source based on a nonlinear transmission line (NLTL) with saturated ferrite, operating in the S-band, has been developed and experimentally tested. Its key feature is the absence of electromagnets in its design. The source consists of a sharpening NLTL with an unsaturated ferrite, a corrugated NLTL, a coaxial high-pass filter, and a combined antenna. Both the sharpening and corrugated lines utilize NiZn ferrite rings. NdFeB permanent magnets are used to saturate the ferrite in the corrugated NLTL. The line provides efficient generation of high-frequency pulses in the frequency range of 2.7–3.6 GHz. The operating voltage range of the source is 50–190 kV. The coaxial high-pass filter has a passband of 1.2–4 GHz, which allows for effective radiation of oscillations excited in the line as well as the high-frequency energy concentrated on the front of the voltage pulse. The combined antenna has an operating range of 1–4 GHz. A pulsed periodic operating mode was implemented with a pulse repetition rate of 50 Hz up to 2000 pulses per burst. At an operating voltage of 170 kV, the central frequency of the radiated pulse is 3.4 GHz. The effective potential of the source is 65 kV.","PeriodicalId":587,"journal":{"name":"Instruments and Experimental Techniques","volume":"69 3","pages":"458 - 471"},"PeriodicalIF":0.4,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752395","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 Microprocessor-Based Temperature-Compensated Bias-Voltage Source for a Silicon Photomultiplier 基于微处理器的硅光电倍增管温度补偿偏置电压源

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700727

V. V. Rakhmanov, S. V. Dvoynishnikov, V. G. Meledin, G. V. Bakakin, K. S. Zubanov

引用次数: 0

Experimental Setup for Plasma-Stimulated Modification of Biopolymer Materials 等离子体刺激改性生物高分子材料的实验装置

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700570

V. V. Andreev, A. V. Artem’ev, I. A. Barykov, E. I. Grudiev, S. A. Dvinin, A. V. Kalashnikov, L. V. Konovaltseva, A. S. Kritchenkov, D. V. Chuprov

{"title":"Experimental Setup for Plasma-Stimulated Modification of Biopolymer Materials","authors":"V. V. Andreev, A. V. Artem’ev, I. A. Barykov, E. I. Grudiev, S. A. Dvinin, A. V. Kalashnikov, L. V. Konovaltseva, A. S. Kritchenkov, D. V. Chuprov","doi":"10.1134/S0020441226700570","DOIUrl":"10.1134/S0020441226700570","url":null,"abstract":"The description of an experimental setup is presented, which allows the generation of high-frequency and microwave discharges for creating plasma streams in a wide range of operating parameters. Experiments on the generation of these discharges are described. Numerical modeling of the spatial distribution of electromagnetic fields that ensure the discharge sustainment under conditions corresponding to the actual parameters of the existing design and setup has been performed. Calculations of the absorption coefficients for waves at working frequency made it possible to determine the localization of absorption regions of the discharge and estimate the efficiency of the power introduced into the discharge for given discharge initiation techniques. The plasma parameters (the electron temperature and concentration) were obtained experimentally, and their dependences on the initial values of the pressure and power of electromagnetic field deposited into the discharge are presented. In the region of the placement of biopolymer samples, the parameters of the ion component of the plasma flow were determined. The results of the pilot studies on the influence of plasma on the physical and chemical properties of biopolymer samples are presented.","PeriodicalId":587,"journal":{"name":"Instruments and Experimental Techniques","volume":"69 3","pages":"496 - 509"},"PeriodicalIF":0.4,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148752393","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

Automated Determination of Time Delay between Radiation Signals for Time-of-Flight Diagnostics of Plasma Flow 等离子体流飞行时间诊断中辐射信号间时间延迟的自动测定

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700697

A. A. Mamonov, K. M. Gutorov, V. S. Chernyshev, V. L. Podkovyrov

{"title":"Automated Determination of Time Delay between Radiation Signals for Time-of-Flight Diagnostics of Plasma Flow","authors":"A. A. Mamonov, K. M. Gutorov, V. S. Chernyshev, V. L. Podkovyrov","doi":"10.1134/S0020441226700697","DOIUrl":"10.1134/S0020441226700697","url":null,"abstract":"A prototype plasma rocket thruster based on a quasi-stationary high-current plasma accelerator (QSPA) is being developed at JSC SRC RF TRINITI. According to the technical specifications, the accelerator must operate in a pulse-periodic mode with a frequency of 10 Hz. It is necessary to register the plasma flow velocity at each launch, because it is an important characteristic of accelerator operation. An algorithm for automated processing of time-of-flight diagnostics of plasma flow velocity, a traditional approach at QSPA, has been developed. The proposed algorithm allows for determining the time dependence of the delay time between signals during a discharge pulse. The estimated error in the calculation results is less than 30%. The algorithm is implemented using concurrency computing on GPU, which made it possible to achieve a single launch processing time of less than 20 ms. Thus, the proposed algorithm for processing time-of-flight diagnostics data allows for calculating the plasma flow velocity after each launch when the accelerator operates in a pulse-periodic mode with a frequency of 10 Hz.","PeriodicalId":587,"journal":{"name":"Instruments and Experimental Techniques","volume":"69 3","pages":"510 - 521"},"PeriodicalIF":0.4,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751592","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

Methods for Increasing the Spatial Resolution and Sensitivity of Classical Hall Magnetometers 提高经典霍尔磁强计空间分辨率和灵敏度的方法

IF 0.4 4区工程技术

Instruments and Experimental Techniques Pub Date : 2026-08-16 DOI: 10.1134/S0020441226700739

Kh. R. Rostami, I. P. Nikitin

{"title":"Methods for Increasing the Spatial Resolution and Sensitivity of Classical Hall Magnetometers","authors":"Kh. R. Rostami, I. P. Nikitin","doi":"10.1134/S0020441226700739","DOIUrl":"10.1134/S0020441226700739","url":null,"abstract":"Attention is drawn to the effect of the self-field HHT of bias current IHT through a Hall transducer (HT) on the objects of study and the measurement accuracy of the Hall magnetometer. The field HHT of the n-InSb-i-GaAs heteroepitaxial HT is considered. It is found that the force lines of the induction of HHT undergo a stepwise change in their direction at the edges of a thin epitaxial n-InSb film. In the case of nonuniform distribution of IHT over the cross section of the film, these jumps create a voltage across the Hall contacts due to the anisotropy, growth-induced defects, and nonequipotentiality of the Hall contacts, thus, leading to the measurement error. Exact compensation of HHT by the field of a current in antiphase to IHT makes it possible not only to eliminate the effect of the self-field on the objects of study but also to lower the detection threshold of the magnetometer from approximately 2.5 × 10–7 to approximately 5.75 × 10–9 T in the range of fields from 2.5 × 10–9 to 5 × 10–7 T and temperatures from 77.4 to 150 K.","PeriodicalId":587,"journal":{"name":"Instruments and Experimental Techniques","volume":"69 3","pages":"539 - 548"},"PeriodicalIF":0.4,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751593","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