Plasma Physics Reports最新文献

Irradiation of Mesenchymal Stem Cells with an Argon Plasma Jet with Various Oxygen Admixtures 不同氧混合氩等离子体射流照射间充质干细胞

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24602207

A. E. Zakharchenko, P. A. Domnin, E. V. Kalinin, A. G. Grosheva, A. V. Petryakov, M. A. Medvedev, E. A. Fefelova, K. Hajisharifi, E. Heydari, H. Mehdian, E. Robert, A. Stancampiano, S. A. Ermolaeva, Yu. S. Akishev

{"title":"Irradiation of Mesenchymal Stem Cells with an Argon Plasma Jet with Various Oxygen Admixtures","authors":"A. E. Zakharchenko, P. A. Domnin, E. V. Kalinin, A. G. Grosheva, A. V. Petryakov, M. A. Medvedev, E. A. Fefelova, K. Hajisharifi, E. Heydari, H. Mehdian, E. Robert, A. Stancampiano, S. A. Ermolaeva, Yu. S. Akishev","doi":"10.1134/S1063780X24602207","DOIUrl":"10.1134/S1063780X24602207","url":null,"abstract":"The results of experiments on the usage of a low-temperature plasma (LTP) jet to activate the nutrient liquid medium αMEM containing mesenchymal stem cells (MSCs) isolated from the bone marrow of Wistar rats are presented. The LTP jet had been created by an axially symmetric barrier discharge with a thin rod electrode located inside a quartz tube along its axis. The tube has been purged with argon at a flow rate of about 25 m/s at the tube output. The conditions under which LTP activation of the αMEM medium can accelerate MSC proliferation have been studied. It turns out that the final effect of the activated liquid medium on cells strongly depends on the purity of argon used to form the plasma jet. A small admixture of oxygen in argon at a level of 700 ppm leads to the formation of active oxygen species in the discharge and in the plasma jet, as well as ozone at a fairly high concentration. Ozone supplied by a jet into a liquid medium dissolves well in it and, as a strong oxidizer, can have a detrimental effect on stem cells. The results on the difference in the composition of active particles in plasma jets in pure argon and in argon with a small admixture of oxygen are presented, as well as the results of microbiological studies on the effect of two types of plasma jets on mesenchymal stem cells.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 2","pages":"133 - 147"},"PeriodicalIF":0.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938297","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

On the Stability Features of Stationary States in a Plasma Diode with a Reactive External Circuit 无功外电路等离子体二极管稳态稳定性研究

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24601925

V. I. Kuznetsov, A. B. Gerasimenko, M. A. Zakharov

引用次数: 0

Ion Motion upon Propagation and Collisions of the Ion-Acoustic Solitary Waves in Plasma 离子声孤波在等离子体中传播和碰撞时的离子运动

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24601901

Yu. V. Medvedev

引用次数: 0

Mutual Effect of the Ionization Wave and the Surface Charge of the Wall During the Breakdown in the Discharge Tube 放电管击穿过程中电离波与壁面电荷的相互作用

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X25602287

A. V. Meshchanov, Yu. Z. Ionikh, A. Z. Devdariani

{"title":"Mutual Effect of the Ionization Wave and the Surface Charge of the Wall During the Breakdown in the Discharge Tube","authors":"A. V. Meshchanov, Yu. Z. Ionikh, A. Z. Devdariani","doi":"10.1134/S1063780X25602287","DOIUrl":"10.1134/S1063780X25602287","url":null,"abstract":"The propagation of the ionization wave along the discharge tube with a precharged wall was studied. Pure inert gases, from neon to xenon, were used, as well as the Ne–Ar mixture, at pressures ~1 Torr. The discharge tubes had a length of 80 cm and a diameter of about 1.5 cm. The ionization wave was excited by a positive- or negative-polarity voltage pulse. The wall charge appeared as a result of the passage of the previous ionization wave initiated in the single-electrode mode. In this mode, the ionization wave is not accompanied by the ignition of the glow discharge. It was established that the time dependence of the longitudinal coordinate of the wave and its instantaneous velocity at each point were determined not by the exciting pulse amplitude but by its excess over the potential of the charged wall. This excess also determines the breakdown voltage in the tube with a precharged wall. This fact confirms the concept of the primary breakdown between the high-voltage electrode and the wall (Nedospasov and Novik, 1960) as the mechanism of the appearance of the ionization wave during the ignition of the glow discharge. Estimates of the characteristic lifetime of the wall charge were obtained.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 2","pages":"194 - 206"},"PeriodicalIF":0.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938302","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

On the Possibility of Parametric Excitation of Two-Dimensional Eigenmodes of Ion Bernstein Wave in ECRH Experiments at the TCV Tokamak TCV托卡马克ECRH实验中离子伯恩斯坦波二维本征模参量激发的可能性

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X25602196

A. Yu. Popov, E. Z. Gusakov

引用次数: 0

Possibility of Achieving Thermonuclear Ignition by Magnetohydrodynamic Compression of a Solid Target by the Current of a Disc Explosive Magnetic Generator 利用圆盘式爆炸磁发生器电流对固体靶进行磁流体动力压缩实现热核点火的可能性

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24602220

A. V. Ivanovskii, V. I. Mamyshev

{"title":"Possibility of Achieving Thermonuclear Ignition by Magnetohydrodynamic Compression of a Solid Target by the Current of a Disc Explosive Magnetic Generator","authors":"A. V. Ivanovskii, V. I. Mamyshev","doi":"10.1134/S1063780X24602220","DOIUrl":"10.1134/S1063780X24602220","url":null,"abstract":"One of the fields of thermonuclear research is gas-dynamic thermonuclear fusion based on spherical cumulative compression of deuterium–tritium (DT) gas using an explosive charge. Unfortunately, due to high compression asymmetry, it was not possible to achieve the ignition threshold, despite more than half a century of the development. The work considers an alternative path based on cylindrical cumulative compression of DT gas by a magnetic field. This method may be free from the drawback associated with compression symmetry. The possibility of achieving the ignition threshold in this way is shown by calculations. At the same time, modern technologies based on explosive magnetic generators make it possible to implement the conditions required for this. However, the analysis shows that the efficiency of converting magnetic field energy into thermonuclear neutron energy, DT plasma burnup, and neutron radiation yield are significantly inferior to the developed approach associated with the compression of preheated magnetized DT plasma (previously MAGO/MTF, now MagLIF).","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 2","pages":"148 - 154"},"PeriodicalIF":0.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1063780X24602220.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938300","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

Energy Transfer in a Plasma Crystal 等离子体晶体中的能量传递

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X25602263

A. M. Ignatov

引用次数: 0

Switching Autowaves in the Lightning Channel 在闪电频道中切换自动波

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X2560224X

D. I. Iudin

引用次数: 0

Influence of Drifts and Currents on the Main Operating Parameters of the Tokamak T-15MD Divertor 漂移和电流对托卡马克T-15MD转向器主要工作参数的影响

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24602293

E. D. Marenkov, E. G. Kaveeva, I. Yu. Senichenkov, A. A. Pshenov, P. S. Semenov, A. V. Gorbunov

{"title":"Influence of Drifts and Currents on the Main Operating Parameters of the Tokamak T-15MD Divertor","authors":"E. D. Marenkov, E. G. Kaveeva, I. Yu. Senichenkov, A. A. Pshenov, P. S. Semenov, A. V. Gorbunov","doi":"10.1134/S1063780X24602293","DOIUrl":"10.1134/S1063780X24602293","url":null,"abstract":"The work presents the results of the first calculations of the T-15MD tokamak near-wall plasma in the SOLPS-ITER code taking into account the effects of drifts and currents. The modes with the power passing through the separatrix PSOL = 6 MW and different H gas puff intensities, corresponding to the average electron density on the separatrix, nesep = (2–4.5) × 1019 m–3, are considered. The same as in other tokamaks of similar size, E × B drift leads to the flow of hydrogen from the outer divertor to the inner one, which changes the load distribution between the divertor targets. Drifts also affect the flow of the carbon impurity. As a rule, when describing the dependence on the H gas puff, either nesep or the total amount of hydrogen in the scrape off layer (SOL), Ntot, is used as a parameter characterizing the discharge. In this case, these quantities are considered as equivalent plasma characteristics in the SOL. It is shown that, from the point of view of estimating the influence of drifts, these quantities are not equivalent: the dependence of some divertor parameters on nesep does not change with the inclusion of drifts, but the dependence on Ntot can change. It is also seen that drifts lead to a more pronounced maximum in the dependence of the saturation current on the electron density, Isat(nesep). This is explained by changes in the emission of the carbon impurity and the power of the recombination source of hydrogen in the divertor.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"51 2","pages":"103 - 117"},"PeriodicalIF":0.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938301","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

X-Ray Radiation of Long Spark Discharges in a Laboratory Experiment 实验室长时间火花放电的x射线辐射

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-05-12 DOI: 10.1134/S1063780X24602256

E. A. Mareev, Yu. V. Shlyugaev, M. V. Shatalina, F. G. Sarafanov, A. A. Belov, V. V. Bogomolov, A. F. Iyudin, P. A. Klimov, N. A. Popov, R. E. Saraev, S. I. Svertilov, I. V. Yashin

引用次数: 0