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Experimental Simulation of the “Glow” Region in Columnar Red Sprites 柱状红色精灵“发光”区域的实验模拟
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X25603311
V. F. Tarasenko, D. A. Sorokin, E. Kh. Baksht, N. P. Vinogradov, V. A. Panarin, V. S. Skakun
{"title":"Experimental Simulation of the “Glow” Region in Columnar Red Sprites","authors":"V. F. Tarasenko,&nbsp;D. A. Sorokin,&nbsp;E. Kh. Baksht,&nbsp;N. P. Vinogradov,&nbsp;V. A. Panarin,&nbsp;V. S. Skakun","doi":"10.1134/S1063780X25603311","DOIUrl":"10.1134/S1063780X25603311","url":null,"abstract":"<p>The work is devoted to the experimental simulation of processes that occur in high-altitude atmospheric discharges called red sprites. Miniature analogs of columnar red sprites are formed in low-pressure air, including those observed with single discharge current pulses. It is shown that the brightly luminous “glow” region of the primary “columns” is due to the transition from the plasma diffuse jet mode initiated by a positive streamer to the quasi-stationary glow discharge mode. The emission spectra from various regions of the discharge system along its longitudinal axis are presented, as well as data on the electron <i>T</i><sub>e</sub>, vibrational <i>T</i><sub>v</sub>, rotational <i>T</i><sub>r</sub> and gas <i>T</i><sub>g</sub> temperatures of the discharge plasma in these places. Photographs of the discharge glow are taken when its mode changes.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"830 - 841"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulations of Neutral Beam Injection in Quasi-Stationary Operation Scenario of T-15MD Tokamak T-15MD托卡马克准稳态工况中性束注入仿真
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X25602706
M. Yu. Isaev, K. E. Barkalov, E. D. Dlougach, N. V. Kasyanova, A. Yu. Kuyanov, A. A. Martynov, D. V. Smirnov
{"title":"Simulations of Neutral Beam Injection in Quasi-Stationary Operation Scenario of T-15MD Tokamak","authors":"M. Yu. Isaev,&nbsp;K. E. Barkalov,&nbsp;E. D. Dlougach,&nbsp;N. V. Kasyanova,&nbsp;A. Yu. Kuyanov,&nbsp;A. A. Martynov,&nbsp;D. V. Smirnov","doi":"10.1134/S1063780X25602706","DOIUrl":"10.1134/S1063780X25602706","url":null,"abstract":"<p>The influence of refined parameters of the upgraded system for 6-MW-power neutral beam injection into the T-15MD tokamak plasma was analyzed numerically. The efficiency of toroidal current drive in plasma has been determined, and the profiles of absorbed power of the injected neutral beam, the safety factor, and the bootstrap current have been calculated. The possibility of replacing the ohmic current in plasma with the current driven by the upgraded neutral beam injection system has been investigated. The results of calculations performed for neutral beams with monoenergetic distribution and more complicated three-component energy composition are compared. For the first time, for simulating future T-15MD shots with neutral beam injection, the NUBEAM code was used in combination with the ASTRA code. The calculations were performed with allowance for the real geometry of injectors and the parameters of ion sources. The calculation results obtained using the NUBEAM code are compared with the calculation results obtained using the new version of the ASTRA-NBI neutral beam injection module, as well as the BTR code, which optimizes the parameters of neutral beam injection. The calculations show that the fraction of current driven by the upgraded neutral beam injection system was approximately 30%.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"751 - 762"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determining the Spectral and Dose Characteristics of Pulse-Periodic X-Ray Radiation from a Plasma Accelerator 等离子体加速器脉冲周期x射线辐射的光谱和剂量特性测定
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X25603414
V. V. Andreev, A. A. Novitsky, A. Niamanesh, D. V. Chuprov
{"title":"Determining the Spectral and Dose Characteristics of Pulse-Periodic X-Ray Radiation from a Plasma Accelerator","authors":"V. V. Andreev,&nbsp;A. A. Novitsky,&nbsp;A. Niamanesh,&nbsp;D. V. Chuprov","doi":"10.1134/S1063780X25603414","DOIUrl":"10.1134/S1063780X25603414","url":null,"abstract":"<p>The paper presents the results of measuring the spectral and dose characteristics of pulse-periodic X-ray radiation generated by a plasma accelerator. The device is based on the principle of electron autophasing in the oscillating electric field of a microwave cavity, implemented in the scenario of automatic maintenance of electron cyclotron resonance in a magnetic field that slowly increases in time in the interaction region (gyromagnetic autoresonance, GA). It was found that electrons of generated plasma bunches during acceleration reach energies of up to 0.5 MeV. Due to multiple acceleration and deceleration of electrons in the microwave field, hard X-ray radiation is generated, which is of interest for radiation technologies. It is shown that the bremsstrahlung of bunches has a pronounced anisotropy and spatial regions with its maximum output are experimentally determined. The measured average absorbed dose rate for biological tissue was 2 mGy/s. Conditions for increasing the accelerator’s bremsstrahlung power with an increase in the number of accelerated electrons and their energy are determined. The accompanying characteristic radiation of the plasma-forming gas and the accelerator’s structural elements facing the plasma is investigated.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"813 - 821"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Threshold of Absolute Parametric Decay Instability of Finite-Width Beam of Microwaves in Inhomogeneous Plasma 非均匀等离子体中有限宽微波束的绝对参数衰减不稳定性阈值
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X25603062
E. Z. Gusakov, A. Yu. Popov
{"title":"Threshold of Absolute Parametric Decay Instability of Finite-Width Beam of Microwaves in Inhomogeneous Plasma","authors":"E. Z. Gusakov,&nbsp;A. Yu. Popov","doi":"10.1134/S1063780X25603062","DOIUrl":"10.1134/S1063780X25603062","url":null,"abstract":"<p>The threshold of absolute parametric decay instability developing in inhomogeneous plasma in the presence of two decay points was studied as a function of the width of a pump beam of microwaves.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"773 - 779"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Restoration of the Radial Temperature Profile of a Discharge with Liquid Non-Metallic Electrodes 用液态非金属电极恢复放电的径向温度分布
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X2560327X
Yu. A. Barinov
{"title":"Restoration of the Radial Temperature Profile of a Discharge with Liquid Non-Metallic Electrodes","authors":"Yu. A. Barinov","doi":"10.1134/S1063780X2560327X","DOIUrl":"10.1134/S1063780X2560327X","url":null,"abstract":"<p>Previously, the gas temperature on the axis of the discharge with liquid non-metallic electrodes has been measured using the shadow background method. The discharge has been studied in the liquid cathode and metal anode configuration. Due to the features of the optical scheme, it has been impossible to obtain good spatial resolution, since the object under study is not in the focus of the photorecording device. As a result, the radial temperature variation is distorted by the instrument function of the lens. To restore the original distribution, it is necessary to solve the inverse problem. In this work, a method for restoring the radial temperature variation is proposed. First, two methods for solving the inverse convolution problem are compared on the basis of a model experiment. The method giving the best result is selected on the basis of the comparison results. The selected method is used to process the experimental data in order to restore the radial temperature variation.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"854 - 859"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Charging of Particles in Multi-Component Dusty Plasma of Humid Nitrogen–Oxygen Mixtures 湿润氮氧混合物多组分含尘等离子体中粒子的带电
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-11-02 DOI: 10.1134/S1063780X25603074
D. V. Vysotskii, N. I. Trushkin, A. V. Filippov, V. E. Cherkovets
{"title":"Charging of Particles in Multi-Component Dusty Plasma of Humid Nitrogen–Oxygen Mixtures","authors":"D. V. Vysotskii,&nbsp;N. I. Trushkin,&nbsp;A. V. Filippov,&nbsp;V. E. Cherkovets","doi":"10.1134/S1063780X25603074","DOIUrl":"10.1134/S1063780X25603074","url":null,"abstract":"<p>Charging of micrometer-sized dust particles in multicomponent plasma of humid air and H<sub>2</sub>O‒O<sub>2</sub>–N<sub>2</sub> gas mixtures at different gas ionization rates by an outer ionization source has been considered. The charge of dust particles is determined based on the kinetic model of ion-molecular processes, which includes more than 600 reactions for electrons, negative and positive ions, including hydrated ions containing up to twelve water molecules. It was found that despite the negligible electron density far from a dust particle in an undisturbed plasma, the charge of dust particles in humid air when the gas ionization rate exceeds the critical value is determined precisely by the electron flux. This leads to sufficiently high dust particle charge comparable with the charge in electropositive gases. The influence of the gas ionization rate and its composition on the dust particle charge is studied. A comparative analysis of the obtained data with the results of the analytical theory of particle charging at elevated pressures is carried out. The issue of the influence of the particle charge polarization under the action of a point charge of an ion (electron) on the charge of dust particles is considered.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 7","pages":"800 - 812"},"PeriodicalIF":1.1,"publicationDate":"2025-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145426002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Suppression of Self-Excitation in a Plasma Microwave Amplifier with a Coaxial Geometry Using an Extended Microwave Absorber 利用扩展微波吸收器抑制同轴等离子体微波放大器的自激
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-09-22 DOI: 10.1134/S1063780X25603037
I. N. Kartashov, M. V. Kuzelev, A. V. Tumanov
{"title":"Suppression of Self-Excitation in a Plasma Microwave Amplifier with a Coaxial Geometry Using an Extended Microwave Absorber","authors":"I. N. Kartashov,&nbsp;M. V. Kuzelev,&nbsp;A. V. Tumanov","doi":"10.1134/S1063780X25603037","DOIUrl":"10.1134/S1063780X25603037","url":null,"abstract":"<p>The problem of radiation amplification in a plasma microwave amplifier with a coaxial geometry in the presence of an absorber is considered. The absorber is used to suppress the parasitic feedback, which can lead to self-excitation of the system. At the same time, its presence leads to a modification of its electrodynamic properties. The spatial increments of the beam–plasma instability were calculated, and the parameter ranges where the self-excitation of the amplifier does not occur were determined. The effect of the absorber on the efficiency of the transformation of the kinetic energy of electrons into the energy of microwave oscillations was estimated.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 6","pages":"708 - 715"},"PeriodicalIF":1.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Simulation of the Features of Propagation of Auroral Kilometric Radiation in Inhomogeneous Magnetoplasma 非均匀磁等离子体中极光千米辐射传播特性的实验模拟
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-09-22 DOI: 10.1134/S1063780X25602998
A. G. Galka, A. V. Kostrov, M. S. Malyshev
{"title":"Experimental Simulation of the Features of Propagation of Auroral Kilometric Radiation in Inhomogeneous Magnetoplasma","authors":"A. G. Galka,&nbsp;A. V. Kostrov,&nbsp;M. S. Malyshev","doi":"10.1134/S1063780X25602998","DOIUrl":"10.1134/S1063780X25602998","url":null,"abstract":"<p>The high-frequency wave propagation in homogeneous and inhomogeneous plasma at frequencies close to electron cyclotron resonance has been laboratory simulated. In the experiment, the electron cyclotron frequency is higher than the plasma frequency but lower than the radiation frequency, which corresponded to the conditions of the propagation of auroral kilometric radiation in the Earth’s magnetosphere recorded by high-orbit satellites at a large distance from the source region. The features of channeling of modes of magnetoplasma in an artificial magneto-oriented density duct with reduced density are studied. Experimental results show that plasma irregularities with transverse dimensions smaller than the wavelength in vacuum are effective channels for the transfer of fast waves along the magnetic field.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 6","pages":"716 - 724"},"PeriodicalIF":1.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sputtering of Tungsten by Alpha Particles α粒子对钨的溅射
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-09-22 DOI: 10.1134/S1063780X25602871
V. S. Mikhailov, P. Yu. Babenko, A. N. Zinoviev
{"title":"Sputtering of Tungsten by Alpha Particles","authors":"V. S. Mikhailov,&nbsp;P. Yu. Babenko,&nbsp;A. N. Zinoviev","doi":"10.1134/S1063780X25602871","DOIUrl":"10.1134/S1063780X25602871","url":null,"abstract":"<p>Dependences of sputtering yield of tungsten on the energy of incident alpha particles were obtained in the energy range up to 10 MeV. An equation was proposed that describes the sputtering yield at energies above 100 keV. The results were obtained by numerical simulations using multiparticle potentials. For nuclear alpha particles with an energy of 3.5 MeV, a dependence of the sputtering yield on the incidence angle of the beam relative to the target was derived.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 6","pages":"685 - 688"},"PeriodicalIF":1.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1063780X25602871.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 1.1 4区 物理与天体物理
Plasma Physics Reports Pub Date : 2025-09-22
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 6","pages":"732 - 739"},"PeriodicalIF":1.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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