High Energy Density Physics最新文献_第9页

Refractory Hidradenitis Suppurativa: A Diagnosis to Consider. 难治性湿疹：需要考虑的诊断

IF 0.9 3区物理与天体物理

High Energy Density Physics Pub Date : 2023-01-05 eCollection Date: 2024-02-01 DOI: 10.1159/000528432

Rita Ornelas Saraiva, Christopher Saunders, Margarida Varela Dos Santos, Diana Carvalho, Rafaela Loureiro, Jaime Ramos

引用次数: 0

Establishing an isoelectronic line ratio temperature diagnostic for soft X-ray absorption spectroscopy 软x射线吸收光谱等电子线比温度诊断方法的建立

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101019

T.S. Lane , M.E. Koepke , P.M. Kozlowski , G.A. Riggs , T.E. Steinberger , I. Golovkin

{"title":"Establishing an isoelectronic line ratio temperature diagnostic for soft X-ray absorption spectroscopy","authors":"T.S. Lane , M.E. Koepke , P.M. Kozlowski , G.A. Riggs , T.E. Steinberger , I. Golovkin","doi":"10.1016/j.hedp.2022.101019","DOIUrl":"10.1016/j.hedp.2022.101019","url":null,"abstract":"<div>For diagnosing temperatures of high-energy-density plasmas, relying on the ratio of a pair of isoelectronic spectral lines provides the alternative of “matched charge-state transits in different elements” to the more conventional, “unmatched charge-state transits in the same-element” spectral-line-ratio technique. In contrast to a novel previous establishment of isoelectronic emission-line ratio determination of plasma temperature, this report determines plasma temperature from the ratio of isoelectronic absorption spectral line pairs. The feasibility of this technique is assessed from experimentally acquired transmission spectra, spanning the 7–15 Å <!-->range, through a <math><mrow><mn>0</mn><mo>.</mo><mn>4</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math> MgO-NaF foil, tamped with CH, x-ray-radiation heated by a z-pinch dynamic hohlraum (ZPDH), and backlit by the brief X-ray burst upon imploding-wire stagnation on the Z pulsed-power facility at Sandia National Laboratories. As expected from the slight difference between interstage and isoelectronic absorption processes, a quantitative comparison between the value of isoelectronic-absorption-derived temperature and the value of inter-stage-absorption-derived temperature is shown to yield a well correlated, slight difference in inferred values of plasma temperature associated with local thermodynamic equilibrium.</div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"45 ","pages":"Article 101019"},"PeriodicalIF":1.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47553483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 1

Withdrawal notice to shock wave implosion in water 水中冲击波内爆撤离通知

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101025

G Chefranov, Ya.E Krasik, A Rososhek

引用次数: 0

The uniform electron gas at high temperatures: ab initio path integral Monte Carlo simulations and analytical theory 高温下的均匀电子气体:从头算路径积分蒙特卡罗模拟和分析理论

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101015

Tobias Dornheim , Jan Vorberger , Zhandos Moldabekov , Gerd Röpke , Wolf-Dietrich Kraeft

{"title":"The uniform electron gas at high temperatures: ab initio path integral Monte Carlo simulations and analytical theory","authors":"Tobias Dornheim , Jan Vorberger , Zhandos Moldabekov , Gerd Röpke , Wolf-Dietrich Kraeft","doi":"10.1016/j.hedp.2022.101015","DOIUrl":"10.1016/j.hedp.2022.101015","url":null,"abstract":"<div>We present extensive new Ab initio path integral Monte Carlo (PIMC) simulations of the uniform electron gas (UEG) in the high-temperature regime, <math><mrow><mn>8</mn><mo>≤</mo><mi>θ</mi><mo>=</mo><msub><mrow><mi>k</mi></mrow><mrow><mi>B</mi></mrow></msub><mi>T</mi><mo>/</mo><msub><mrow><mi>E</mi></mrow><mrow><mi>F</mi></mrow></msub><mo>≤</mo><mn>128</mn></mrow></math>. This allows us to study the convergence of different properties towards the classical limit. In particular, we investigate the classical relation between the static structure factor <math><mrow><mi>S</mi><mrow><mo>(</mo><mi>q</mi><mo>)</mo></mrow></mrow></math> and the static local field correction <math><mrow><mi>G</mi><mrow><mo>(</mo><mi>q</mi><mo>)</mo></mrow></mrow></math>, which is only fulfilled at low densities. Moreover, we compare our new results for the interaction energy to the parametrization of the UEG by Groth et al. (2017), which interpolates between PIMC results for <math><mrow><mi>θ</mi><mo>≤</mo><mn>8</mn></mrow></math> and the Debye–Hückel limit, and to higher order analytical virial expansions. Finally, we consider the momentum distribution function <math><mrow><mi>n</mi><mrow><mo>(</mo><mi>q</mi><mo>)</mo></mrow></mrow></math> and find an interaction-induced increase in the occupation of the zero-momentum state even for <math><mrow><mi>θ</mi><mo>≳</mo><mn>32</mn></mrow></math>. All PIMC data are freely available online, and can be used as input for improved parametrizations and as a rigorous benchmark for approximate methods.</div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"45 ","pages":"Article 101015"},"PeriodicalIF":1.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1574181822000386/pdfft?md5=6bc422f009d1e4c8c547ab2d229f3ecc&pid=1-s2.0-S1574181822000386-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82478581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 12

Optimising point source irradiation of a capsule for maximum uniformity 优化胶囊的点源照射以获得最大的均匀性

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101007

Oliver Breach , Peter Hatfield , Steven Rose

{"title":"Optimising point source irradiation of a capsule for maximum uniformity","authors":"Oliver Breach , Peter Hatfield , Steven Rose","doi":"10.1016/j.hedp.2022.101007","DOIUrl":"https://doi.org/10.1016/j.hedp.2022.101007","url":null,"abstract":"<div>Inertial Confinement Fusion involves the implosion of a spherical capsule containing thermonuclear fuel. The implosion is driven by irradiating the outside of the capsule by X-rays or by optical laser irradiation, where in each case the highest uniformity of irradiation is sought. In this paper we consider the theoretical problem of irradiation of a capsule by point sources of X-rays, and seek configurations which maximise uniformity. By studying the root-mean-square deviation in terms of different order harmonic modes, we rationalise the dependence of uniformity on distance <math><mi>d</mi></math> of the point sources from the centre of a capsule. After investigating simple configurations based on the Platonic solids, we use a global optimisation algorithm (basin-hopping) to seek better arrangements. The optimum configurations are found to depend strongly on <math><mi>d</mi></math>; at certain values which minimise nonuniformity, these involve grouping of sources on the vertices of octahedra or icosahedra, which we explain using a modal decomposition. The effect of uncertainties in both position and intensity is studied, and lastly we investigate the illumination of a capsule whose radius is changing with time.</div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"45 ","pages":"Article 101007"},"PeriodicalIF":1.6,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136581116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Note on similarity transform and shock waves 注意相似变换和冲击波

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101020

Chu A. Kwang-Hua

引用次数: 0

WITHDRAWN: Shock wave implosion in water 撤回:水中冲击波内爆

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101017

S.G. Chefranov, Ya.E. Krasik, A. Rososhek

引用次数: 0

Time-dependent modeling of photoionization wave propagation in nitrogen 氮中光电离波传播的时间依赖模型

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.100999

Zohar Henis, David Salzmann

引用次数: 0

Simulation of non-stationary neon plasma using the THERMOS toolkit 使用THERMOS工具箱模拟非静止氖等离子体

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101018

D.A. Kim, I.Yu. Vichev, A.D. Solomyannaya, A.S. Grushin

引用次数: 0

A fast approximation to supershell partition functions 超壳层配分函数的快速逼近

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2022-12-01 DOI: 10.1016/j.hedp.2022.101016

Brian G. Wilson , Jean-Christophe Pain

引用次数: 1