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相关论文: Diagnostic of the temperature and differential emi…

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A precise calculation that translates shifts of X-ray K-absorption edges to variations of thermodynamic properties allows quantitative characterization of interior thermodynamic properties of warm dense plasmas by X-ray absorption…

等离子体物理 · 物理学 2016-03-23 Shen Zhang , Shijun Zhao , Wei Kang , Ping Zhang , Xian-Tu He

A two-electron temperature plasma is produced by the method of diffusion of two different plasmas with distinct temperatures and densities. The method is simple and provides an adequate control over the plasma parameters. The study reveals…

等离子体物理 · 物理学 2022-03-02 G. Sharma , K. Deka , R. Paul , S. Adhikari , R. Moulick , S. S. Kausik , B. K. Saikia

X-ray observations of shock-heated plasmas, such as those found in supernova remnants, often exhibit features of temperature and ionization non-equilibrium. For accurate interpretation of these observations, proper calculations of the…

高能天体物理现象 · 物理学 2024-10-02 Yuken Ohshiro , Shunsuke Suzuki , Yoshizumi Okada , Hiromasa Suzuki , Hiroya Yamaguchi

We assess the possibility to detect the warm-hot intergalactic medium (WHIM) in emission and to characterize its physical conditions and spatial distribution through spatially resolved X-ray spectroscopy, in the framework of the recently…

We report the multi-temperature structure of the intracluster medium (ICM) in the Centaurus cluster core observed with XRISM/Resolve. Thanks to its high energy resolution, Resolve enables us to measure fine structures of highly ionized…

A new method called `Configurational Temperature' is introduced in the context of dusty plasma, where the temperature of the dust particles, submerged in the plasma, can be measured directly from the positional information of the individual…

等离子体物理 · 物理学 2020-06-24 Rupak Mukherjee , Surabhi Jaiswal , Manish K Shukla , Ammar Hakim , Edward Thomas

A detailed study of emission lines from Fe VII, Fe VIII and Fe IX observed by the EUV Imaging Spectrometer on board the Hinode satellite is presented. Spectra in the ranges 170-212 A and 246-292 A show strongly enhanced lines from the upper…

太阳与恒星天体物理 · 物理学 2015-05-13 P. R. Young , E. Landi

A method for evaluating the radial temperature profile of a plasma channel is presented. The radiation spectrum of mixture of Hydrogen Nitrogen plasma in capillary discharge is collected. Assuming a local thermal equilibrium, the…

等离子体物理 · 物理学 2024-01-30 Niv Barkai , Noa kliss , Yair Ferber , Yoav Raz , Rotem Liran , Mordechai Botton , Arie Zigler

Warm dense matter (WDM) plays an important role in astrophysical objects and technological applications, but the rigorous diagnostics of corresponding experiments is notoriously difficult. In this work, we present a model-free analysis of…

Thanks to the new generation of X-ray satellites such as Chandra and XMM, high resolution and high sensitivity spectra are available. In particular, for the first time, the three most intense lines (resonance, intercombination and…

天体物理学 · 物理学 2007-05-23 Delphine Porquet , Jacques Dubau

We present a new method of DEEM, the direct energy encircling method, for characterising the performance of fibres in most astronomical spectroscopic applications. It's a versatile platform to measure focal ratio degradation (FRD),…

天体物理仪器与方法 · 物理学 2019-12-25 Yunxiang Yan , Qi Yan , Gang Wang , Weimin Sun , A-Li Luo , Zhenyu Ma , Qiong Zhang , Jian Li , Shuqing Wang

Effects of radio-frequency power and driven frequency on the two-dimensional (axial and radial) distributions of electron density and temperature were experimentally investigated in low pressure capacitively coupled argon plasmas. The…

等离子体物理 · 物理学 2020-10-22 Jidun Wu , Hao Zheng , Yanfei Wang , Fengzhu Zhou , Xiaojiang Huang

The increasing size of solar datasets demands highly efficient and robust analysis methods. This paper presents an approach that can increase the computational efficiency of differential emission measure (DEM) inversions by an order of…

太阳与恒星天体物理 · 物理学 2019-10-09 James Pickering , Huw Morgan

We present a statistical analysis of properties of Soft X-Ray (SXR) emission, plasma temperature (T), and emission measure (EM), derived from GOES observations of flares in 2002-2017. The temperature and emission measures are obtained using…

太阳与恒星天体物理 · 物理学 2019-03-27 Viacheslav M Sadykov , Alexander G Kosovichev , Irina N Kitiashvili , Alexander Frolov

We present a new analytical technique, combining Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) high-resolution imaging and spectroscopic observations, to visualize solar flare emission as a function of spectral component…

天体物理仪器与方法 · 物理学 2015-09-15 Amir Caspi , Albert Y. Shih , James M. McTiernan , Säm Krucker

We have performed a systematic study of the Bremsstrahlung emission from the electrons in the plasma of a commercial 14.5 GHz Electron-Cyclotron Resonance Ion Source. The electronic spectral temperature and the product of ionic and…

The recent analysis of observations taken with the EIS instrument on Hinode suggests that well constrained measurements of the temperature distribution in solar active regions can finally be made. Such measurements are critical for…

太阳与恒星天体物理 · 物理学 2015-06-04 Harry P. Warren , Amy R. Winebarger , David H. Brooks

This work combines the principles of the heat spreader method and imaging capability of the thermoreflectance measurements to measure the in-plane thermal conductivity of thin-films without the requirement of film suspension or multiple…

应用物理 · 物理学 2020-11-24 T. Zhu , D. H. Olson , P. E. Hopkins , M. Zebarjadi

Thermal aware routing and placement algorithms are important in industry. Currently, there are reasonably fast Green's function based algorithms that calculate the temperature distribution in a chip made from a stack of different materials.…

综合物理 · 物理学 2008-01-08 Virginia Martín Hériz , J. -H. Park , T. Kemper , S. -M. Kang , A. Shakouri

In this paper, a multilayer thermal infrared detector model has been achieved by finite element method (FEM). All contributions of the thermal conductance were taken into account and calculated. In order to maximize the detector response,…

应用物理 · 物理学 2017-12-08 P. Ramos , A. Andrés , A. López , A. Manzanares