Plasma Physics Reports最新文献_第3页

Influence of the Lunar Dielectric Permittivity on Charging by the Solar Wind Plasma of Dust Grains on the Surface of the Moon 月球介电常数对月球表面尘埃颗粒的太阳风等离子体充电的影响

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601081

N. D. Borisov

引用次数: 0

Thomson Scattering Diagnostics with Tangential Probing Geometry at the T-15MD Tokamak T-15MD托卡马克切向探测几何汤姆逊散射诊断

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601500

G. M. Asadulin, I. S. Bel’bas, A. V. Gorshkov, N. A. Kirneva, D. S. Panfilov, Yu. I. Tolpegina, N. S. Zhiltsov, G. S. Kurskiev, E. E. Tkachenko

{"title":"Thomson Scattering Diagnostics with Tangential Probing Geometry at the T-15MD Tokamak","authors":"G. M. Asadulin, I. S. Bel’bas, A. V. Gorshkov, N. A. Kirneva, D. S. Panfilov, Yu. I. Tolpegina, N. S. Zhiltsov, G. S. Kurskiev, E. E. Tkachenko","doi":"10.1134/S1063780X24601500","DOIUrl":"10.1134/S1063780X24601500","url":null,"abstract":"In 2023, the Thomson scattering diagnostics with tangential probing geometry was installed and put into operation at the T-15MD tokamak. The new system is based on a 100-Hz Nd:YAG laser with a pulse energy of up to 3 J at the first harmonic, λ = 1064 nm. The system allows measurements to be carried out throughout the plasma discharge with its duration of up to 10 s with a time interval of 10 ms. Laser radiation is introduced into the tokamak vessel in the equatorial plane, passing through the entire plasma volume from the inner to the outer periphery of the plasma. The scattered radiation acquisition system is located inside the equatorial port of the facility. The range of scattering angles is from 11° to 56°. The recording system is based on 10 polychromators on interference filters. Using this diagnostics, the electron temperature and density have been measured in the experimental campaign at the end of 2023. The system operation was demonstrated throughout the entire tokamak discharge in a wide temperature range and with a discharge duration of up to 2 s.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"50 11","pages":"1327 - 1336"},"PeriodicalIF":0.9,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963098","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

Features of Radial Distributions of Poloidal Magnetic Field in Axial Jet Ejection in a Plasma Focus 等离子体焦点轴向喷射过程中极向磁场径向分布特征

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601111

V. I. Krauz, K. N. Mitrofanov, V. V. Myalton, A. M. Kharrasov, Yu. V. Vinogradova

{"title":"Features of Radial Distributions of Poloidal Magnetic Field in Axial Jet Ejection in a Plasma Focus","authors":"V. I. Krauz, K. N. Mitrofanov, V. V. Myalton, A. M. Kharrasov, Yu. V. Vinogradova","doi":"10.1134/S1063780X24601111","DOIUrl":"10.1134/S1063780X24601111","url":null,"abstract":"The radial distribution of the Bz field at a distance of 35 cm from the generation region of the axial jet emission (the anode surface of the setup) has been studied using the PF-3 plasma-focus facility. The measurements have been performed using multichannel magnetic probes located in the flight chamber of the facility. This has made it possible to measure the magnetic field distribution at 18 points on both sides of the flight chamber axis. The magnetic probes have been calibrated both in absolute value and in the magnetic field direction. An external multi-turn solenoid has been used to create the initial longitudinal (poloidal) magnetic field. The solenoid power supply circuit has allowed obtaining different Bz field directions: along or against the facility axis. It is shown that the poloidal field distribution reaches its maximum in the bunch center and decreases at the periphery, regardless of the presence of an external magnetic field. The Bz field has a radial distribution Bz(r), close in shape to the magnetic field distribution of the solenoid. The work is performed within the program for the simulation of jets of young stellar objects.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"50 11","pages":"1397 - 1410"},"PeriodicalIF":0.9,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963095","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

Equilibrium States of Plasma in a Given External Field 给定外场中等离子体的平衡态

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24600646

V. N. Shapovalov, A. V. Shapovalov, T. B. Gol’dvarg

引用次数: 0

Nonlinear Interaction of Landau-Resonance Electrons with the EMIC Wave in a Multicomponent Plasma 多组分等离子体中朗道共振电子与主位波的非线性相互作用

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601202

A. A. Luzhkovskii

引用次数: 0

Enhancement of the Anticancer Effect during the Simultaneous Treatment of Cells by a Cold Atmospheric Plasma Jet and Gold Nanoparticles 低温大气等离子体射流和金纳米颗粒同时处理细胞时抗癌效果的增强

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601597

I. Schweigert, D. Zakrevsky, E. Milakhina, P. Gugin, M. Biryukov, A. Polyakova, N. Kryachkova, E. Gorbunova, A. Epanchintseva, I. Pyshnaya, O. Koval

{"title":"Enhancement of the Anticancer Effect during the Simultaneous Treatment of Cells by a Cold Atmospheric Plasma Jet and Gold Nanoparticles","authors":"I. Schweigert, D. Zakrevsky, E. Milakhina, P. Gugin, M. Biryukov, A. Polyakova, N. Kryachkova, E. Gorbunova, A. Epanchintseva, I. Pyshnaya, O. Koval","doi":"10.1134/S1063780X24601597","DOIUrl":"10.1134/S1063780X24601597","url":null,"abstract":"Selecting the most effective and biologically safe operation regimes of a cold atmospheric plasma jet (CAPJ) is a defining factor in developing the cancer treatments based on the CAPJ. Experimentally and numerically, by changing the pulse duration of the positive pulsed voltage, we determined the optimum CAPJ regimes with regular propagation of streamers and a maximum discharge current at a temperature T < 42°C. In these regimes, the CAPJ appreciably suppresses the viability of the cancerous cells. It was shown that adding gold nanoparticles increases the cytotoxic effect of the plasma jet and decreases the viability of the NCI‑H23 epithelioid lung adenocarcinoma, the A549 lung adenocarcinoma, the BrCCh4e-134 mammary adenocarcinoma, and the cells of the uMel1 uveal melanoma. The polyethylenglycol-modified gold nanoparticles with fluorescent labels were used to visualize the absorption of the nanoparticles by the cells. It was shown that the CAPJ stimulated the penetration of the nanoparticles into the cells when they were applied to the medium immediately before the CAPJ treatment or immediately after, which indicates a short-time increase in the permeability of the cell membrane.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"50 11","pages":"1375 - 1387"},"PeriodicalIF":0.9,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963092","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 Nonlinear Dust Acoustic Perturbations in the Ionosphere of Mars 火星电离层非线性尘埃声扰动研究

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601688

Yu. S. Reznichenko, Yu. N. Izvekova, S. I. Popel

引用次数: 0

Van Kampen Waves in Quantum Plasma 量子等离子体中的范坎彭波

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X2460186X

A. M. Ignatov

引用次数: 0

Numerical Simulation of Pulse-Periodic Nanosecond Electric Discharge in Air 空气中脉冲周期纳秒放电的数值模拟

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601196

V. A. Bityurin, A. N. Bocharov, A. S. Dobrovol’skaya, N. A. Popov, E. A. Filimonova

引用次数: 0

Quasi-Optical Simulations of Scenarios with the Second Harmonic Electron Cyclotron Plasma Heating at the GDT Facility GDT装置中二次谐波电子回旋加速器等离子体加热情景的准光学模拟

IF 0.9 4区物理与天体物理

Plasma Physics Reports Pub Date : 2025-01-12 DOI: 10.1134/S1063780X24601585

T. A. Khusainov, A. A. Balakin, E. D. Gospodchikov, A. L. Solomakhin, A. G. Shalashov

{"title":"Quasi-Optical Simulations of Scenarios with the Second Harmonic Electron Cyclotron Plasma Heating at the GDT Facility","authors":"T. A. Khusainov, A. A. Balakin, E. D. Gospodchikov, A. L. Solomakhin, A. G. Shalashov","doi":"10.1134/S1063780X24601585","DOIUrl":"10.1134/S1063780X24601585","url":null,"abstract":"The absorption of microwave radiation in the GDT open magnetic trap (Budker Institute of Nuclear Physics) was studied using a new scheme of electron cyclotron resonance plasma heating at the second harmonic, in which radiation in the form of the extraordinary wave was launched almost transverse to the plasma column. When performing numerical simulations, the full-aberration quasi-optical approach was used, which was verified using the first experimental data, obtained at the facility. The optimal scenarios using the new heating system were analyzed. It was found that in the current configuration, the total efficiency of microwave heating does not exceed 60%, which is considerably less than that planned when designing the system. This occurs due to the tangential reflection of heating radiation from the resonance region; this is a wave effect that was previously not taken into account within the framework of the geometric-optics approximation. It was shown that heating at the second harmonic does not result in excitation of the “overheating” instability of the electron component observed during heating at the first harmonic; on the whole, the wide power deposition profile is formed in this case. This is an advantage of the new scheme, since it makes it possible to avoid the development of MHD plasma instabilities associated with peaked power release at the axis of the plasma column.","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"50 11","pages":"1337 - 1352"},"PeriodicalIF":0.9,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142963124","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