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相关论文: Overdense microwave plasma heating in the CNT stel…

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For production of low temperature plasmas with low collisionality, 2.45GHz microwave power up to 20kW is injected perpendicularly to the toroidal field at very low toroidal field Bt

等离子体物理 · 物理学 2009-11-10 Ryosuke Ikeda , Masaki Takeuchi , Takafumi Ito , Kazuo Toi , Chihiro Suzuki , Go Matsunaga , Shoichi Okamura , Chs Group

We utilize deep Chandra X-ray Observatory imaging and spectra of M82, the prototype of a starbursting galaxy with a multiphase wind, to map the hot plasma properties along the minor axis of the galaxy. We extract spectra from 11 regions up…

高能天体物理现象 · 物理学 2020-12-09 Laura A. Lopez , Smita Mathur , Dustin D. Nguyen , Todd A. Thompson , Grace M. Olivier

We investigate seven eruptive plasma observations by Hinode/XRT. Their corresponding EUV and/or white light CME features are visible in some events. Five events are observed in several passbands in X-rays, which allows the determination of…

太阳与恒星天体物理 · 物理学 2015-06-23 Jin-Yi Lee , John C. Raymond , Katharine K. Reeves , Yong-Jae Moon , Kap-Sung Kim

The excitation of a slow extraordinary wave in a overdense plasma from an ordinary wave impinging on the critical layer in the plane spanned by the density gradient and magnetic field is solved analytically by formulating the problem in…

等离子体物理 · 物理学 2015-05-13 F. Volpe

Microwave plasmas are a promising technology for energy-efficient CO$_{2}$ valorization via conversion of CO$_{2}$ into CO and O$_2$ using renewable energies. A 2.45 GHz microwave plasma torch with swirling CO$_{2}$ gas flow is studied in a…

等离子体物理 · 物理学 2020-12-02 F. A. D'Isa , E. A. D. Carbone , A. Hecimovic , U. Fantz

Extra Ordinary (X) mode conversion to Bernstein wave near Upper Hybrid Resonance (UHR) layer plays an important role in plasma heating through cyclotron resonance. Wave generation at UHR and parametric decay at high power has been observed…

等离子体物理 · 物理学 2007-05-23 Vipin K. Yadav , D. Bora

The existence and ballooning-stability of low aspect ratio stellarator equilibria is predicted for CNT with the aid of 3D numerical tools. In addition to having a low aspect ratio, CNT is characterized by a low magnetic field and small…

等离子体物理 · 物理学 2017-04-13 K. C. Hammond , S. A. Lazerson , F. A. Volpe

Propagation of right-hand circularly polarized laser into highly magnetized over-dense collisional plasma is analytically studied from basic equations. Highly magnetized plasma with density of 10^23 cm^-3 is efficiently heated from 100 eV…

等离子体物理 · 物理学 2020-12-02 Kun Li , Wei Yu

The Sun offers a convenient nearby laboratory to study the physical processes of particle acceleration and impulsive energy release in magnetized plasmas that occur throughout the universe, from planetary magnetospheres to black hole…

太阳与恒星天体物理 · 物理学 2011-05-13 Amir Caspi

In recent decades, different types of plasma sources have been used for various types of plasma processing, such as, etching and thin film deposition. The critical parameter for effective plasma processing is high plasma density. One type…

等离子体物理 · 物理学 2014-11-13 Satyananda Kar , Lukas Alberts , Hiroyuki Kousaka

We used FUSE to observe ultraviolet emission from diffuse O VI in the hot gas in the Galactic halo. By comparing our result with another, nearby observation blocked by an opaque cloud at a distance of 230 pc, we could subtract off the…

天体物理学 · 物理学 2011-02-11 Robin L. Shelton , Shauna M. Sallmen , Edward B. Jenkins

We perform a time-dependent ionization analysis to constrain plasma heating requirements during a fast partial halo coronal mass ejection (CME) observed on 2000 June 28 by the Ultraviolet Coronagraph Spectrometer (UVCS) aboard the Solar and…

太阳与恒星天体物理 · 物理学 2011-06-21 N. A. Murphy , J. C. Raymond , K. E. Korreck

We investigate the August 9, 2011 solar flare of X-ray class X6.9, the "hottest" flare from 2000 to 2012, with a peak plasma temperature according to GOES data of 32.5 MK. Our goal is to determine the cause of such an anomalously high…

太阳与恒星天体物理 · 物理学 2015-06-23 I. N. Sharykin , A. B. Struminsky , I. V. Zimovets

In addition to lines originating in a soft phase at ~0.8 keV and to cold molecular clouds, the X-ray spectra from the Galactic center region also exhibit properties similar to those of a diffuse, thin, very hot plasma at 8 keV on a scale of…

天体物理学 · 物理学 2009-11-11 R. Belmont , M. Tagger

The Ultraviolet Coronagraph Spectrometer (UVCS) observed Doppler shifted material of a partial Halo Coronal Mass Ejection (CME) on December 13 2001. The observed ratio of [O V]/O V] is a reliable density diagnostic important for assessing…

天体物理学 · 物理学 2011-02-11 J. -Y. Lee , J. C. Raymond , Y. -K. Ko , K. -S. Kim

This paper uses extended-magnetohydrodynamics (MHD) simulations to explore an extreme magnetized plasma regime realisable by cylindrical implosions on the OMEGA laser facility. This regime is characterized by highly compressed magnetic…

Water bath calorimetry was used to demonstrate one more peculiar phenomenon associated with a certain class of mixed gas plasmas termed resonant transfer, or RT plasmas. Specifically, He/H2 (10%) (500 mTorr), Ar/H2 (10%) (500 mTorr), and…

等离子体物理 · 物理学 2009-11-10 J. Phillips , R. L. Mills , X. Chen

The study of the localized plasma conditions before the impulsive phase of a solar flare can help us understand the physical processes that occur leading up to the main flare energy release. Here, we present evidence of a hot X-ray onset…

太阳与恒星天体物理 · 物理学 2020-12-02 Hugh S. Hudson , Paulo J. A. Simoes , Lyndsay Fletcher , Laura A. Hayes , Iain G. Hannah

A new magnetic phase with $T_C = 72 \ \mathrm K$ was obtained by exposing the three-dimensional $\mathrm{\{ [Mn^{II}(H_2O)_2]_2[Nb^{IV}(CN)_8] \cdot 4H_2O \} _n}$ coordination ferrimagnet ($T_C = 49 \ \mathrm K$) to air, oxygen, nitrogen,…

材料科学 · 物理学 2024-02-29 Dominik Czernia , Piotr Konieczny , Marcin Perzanowski , Beata Nowicka , Dawid Pinkowicz

The impulsive phase of solar flares is a time of rapid energy deposition and heating in the lower solar atmosphere, leading to changes in the temperature and density structure of the region. We use an O V density diagnostic formed of the…

太阳与恒星天体物理 · 物理学 2015-11-18 David R. Graham , Lyndsay Fletcher , Nicolas Labrosse
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