High Energy Density Physics最新文献_第8页

Effect of external magnetic field inhomogeneity on the nonlinear absorption of intense laser pulse in inhomogeneous warm plasma 外磁场不均匀性对非均匀热等离子体中强激光脉冲非线性吸收的影响

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2025-03-01 Epub Date: 2024-12-03 DOI: 10.1016/j.hedp.2024.101162

R. Fallah , R. Khooniki , A. Esmaeili Karnawah , H. Golnarkar , A.R. Niknam

{"title":"Effect of external magnetic field inhomogeneity on the nonlinear absorption of intense laser pulse in inhomogeneous warm plasma","authors":"R. Fallah , R. Khooniki , A. Esmaeili Karnawah , H. Golnarkar , A.R. Niknam","doi":"10.1016/j.hedp.2024.101162","DOIUrl":"10.1016/j.hedp.2024.101162","url":null,"abstract":"<div><div>This paper studies the propagation of an intense laser pulse and the collisional absorption in an inhomogeneous warm plasma by taking into account the external magnetic field inhomogeneity and the ponderomotive force. The calculations are carried out and compared for different magnetic field strengths and their various configurations. For this purpose, using the hydrodynamic equations, the electron density and hence the effective dielectric permittivity of the magneto-active warm plasma are derived and the nonlinear wave equation is solved through the numerical method of Runge–Kutta. The results show that increasing the strength of the external magnetic field causes an increase in the absorption coefficient and the linear magnetic field has a higher influence on the absorption coefficient with respect to the wiggler and constant magnetic fields. Moreover, when the electron temperature increases, the amplitude of the laser field and the absorption coefficient are increased and the spatial damping rate of the laser pulse takes a peak in the plasma. The results also indicate that increasing the energy of the laser pulse causes a decrease in the nonlinear absorption, and the laser energy spatial damping is significantly decreased in contrast to the growth of the amplitude of the laser field. A qualitative comparison of the results indicates that if a linear magnetic field is applied in the same direction of the laser propagation, the collisional absorption rate will be larger with respect to the other magnetic fields. Moreover, the difference in the influence of the mentioned magnetic fields on the collisional absorption increases with increasing the electron temperature and normalized cyclotron frequency and decreases with increasing laser intensity.</div></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"54 ","pages":"Article 101162"},"PeriodicalIF":1.6,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143173959","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

Dynamic localized hot spot mix extraction from images in ICF experiments 在 ICF 实验中从图像中动态提取局部混合热点

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2025-03-01 Epub Date: 2024-11-19 DOI: 10.1016/j.hedp.2024.101160

Shahab F. Khan, Laurent Divol, Art Pak, Terance Hilsabeck, Bernard Kozioziemski, Benjamin Bachmann, Andrew G. MacPhee, Clement Trosseille

引用次数: 0

On the number of atomic configurations in hot plasmas 热等离子体中原子构型的数目

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2025-03-01 Epub Date: 2025-01-18 DOI: 10.1016/j.hedp.2025.101174

Jean-Christophe Pain , Daniel Aberg , Brian G. Wilson

引用次数: 0

Pseudoatom molecular dynamics plasma microfields 赝原子分子动力学等离子体微场

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2025-03-01 Epub Date: 2025-01-09 DOI: 10.1016/j.hedp.2025.101173

J.R. White , C.J. Fontes , M.C. Zammit , T.A. Gomez , C.E. Starrett

引用次数: 0

A new approach to include electron interaction effects in super transition array opacity theory 在超跃迁阵列不透明度理论中引入电子相互作用效应的新方法

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2025-03-01 Epub Date: 2025-02-01 DOI: 10.1016/j.hedp.2025.101175

Daniel Aberg , Brian G. Wilson , Jean-Christophe Pain

引用次数: 0

FLAIM: A reduced volume ignition model for the compression and thermonuclear burn of spherical fuel capsules FLAIM：球形燃料囊压缩和热核燃烧的减容点火模型

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2024-12-01 Epub Date: 2024-10-20 DOI: 10.1016/j.hedp.2024.101159

Abd Essamade Saufi, Hannah Bellenbaum , Martin Read, Nicolas Niasse, Sean Barrett, Nicholas Hawker, Nathan Joiner, David Chapman

{"title":"FLAIM: A reduced volume ignition model for the compression and thermonuclear burn of spherical fuel capsules","authors":"Abd Essamade Saufi, Hannah Bellenbaum , Martin Read, Nicolas Niasse, Sean Barrett, Nicholas Hawker, Nathan Joiner, David Chapman","doi":"10.1016/j.hedp.2024.101159","DOIUrl":"10.1016/j.hedp.2024.101159","url":null,"abstract":"<div><div>We present the “First Light Advanced Ignition Model” (FLAIM), a reduced model for the implosion, adiabatic compression, volume ignition and thermonuclear burn of a spherical DT fuel capsule utilising a high-Z metal pusher. <span>FLAIM</span> is characterised by a highly modular structure, which makes it an appropriate tool for optimisations, sensitivity analyses and parameter scans. One of the key features of the code is the 1D description of the hydrodynamic operator, which has a minor impact on the computational efficiency, but allows us to gain a major advantage in terms of physical accuracy. We demonstrate that a more accurate treatment of the hydrodynamics plays a primary role in closing most of the gap between a simple model and a general 1D rad-hydro code, and that only a residual part of the discrepancy is attributable to the heat losses. We present a detailed quantitative comparison between FLAIM and 1D rad-hydro simulations, showing good agreement over a large parameter space in terms of temporal profiles of key physical quantities, ignition maps and typical burn metrics.</div></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"53 ","pages":"Article 101159"},"PeriodicalIF":1.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530761","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

Investigating the suitability of pristine and defective C3N monolayer as supercapacitor electrodes: DFT calculations 研究原始和缺陷 C3N 单层作为超级电容器电极的适用性：DFT 计算

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2024-12-01 Epub Date: 2024-09-02 DOI: 10.1016/j.hedp.2024.101154

Maher Ali Rusho , Ihsan A. Alduhan , Adil Ismael Mohammed , Hayder Hamid Abbas Al-Anbari , Aseel Salah Mansoor , Usama Kadem Radi , Amir H. Idean , Ahmad J. Obaidullah , Hala Bahair , Anupam Yadav

{"title":"Investigating the suitability of pristine and defective C3N monolayer as supercapacitor electrodes: DFT calculations","authors":"Maher Ali Rusho , Ihsan A. Alduhan , Adil Ismael Mohammed , Hayder Hamid Abbas Al-Anbari , Aseel Salah Mansoor , Usama Kadem Radi , Amir H. Idean , Ahmad J. Obaidullah , Hala Bahair , Anupam Yadav","doi":"10.1016/j.hedp.2024.101154","DOIUrl":"10.1016/j.hedp.2024.101154","url":null,"abstract":"<div><p>The possibility of utilizing defected C<sub>3</sub>N monolayers as the electrodes of supercapacitors (SCs) was investigated in the current study by performing DFT computations. A single-vacancy C<sub>3</sub>N monolayer (SC<sub>3</sub>NML), a double-vacancy C<sub>3</sub>N monolayer (DC<sub>3</sub>NM) and a pure C<sub>3</sub>N monolayer (PC<sub>3</sub>NML) were investigated. The charge plots, quantum capacitance (QC) and the density of state of SC<sub>3</sub>NML, DC<sub>3</sub>NM and PC<sub>3</sub>NML were also studied. Based on the results, the QC of SC<sub>3</sub>NML and DC<sub>3</sub>NM at voltages between -0.80 and 0.80 V was more compared to the QC of PC<sub>3</sub>NML. It was possible to use SC<sub>3</sub>NML as a negative electrode and DC<sub>3</sub>NM as a positive electrode, both of which were p-type semi-conductors. The stored charge in the SC<sub>3</sub>NML and DC<sub>3</sub>NM was higher compared to the stored charge in PC<sub>3</sub>NML at voltages 0 to 0.8 V. The charge stored in DC<sub>3</sub>NM was higher than the stored charge in SC<sub>3</sub>NML and PC<sub>3</sub>NML. Finally, DC<sub>3</sub>NML layer can be regarded as an encouraging electrode for application in SCs.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"53 ","pages":"Article 101154"},"PeriodicalIF":1.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148471","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

Mykonos: A pulsed power driver for science and innovation 米克诺斯岛促进科学和创新的脉冲功率驱动器

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2024-12-01 Epub Date: 2024-08-24 DOI: 10.1016/j.hedp.2024.101144

Jens Schwarz , Brian Hutsel , Thomas Awe , Bruno Bauer , Jacob Banasek , Eric Breden , Joe Chen , Michael Cuneo , Katherine Chandler , Karen DeZetter , Mark Gilmore , Matthew Gomez , Hannah Hasson , Maren Hatch , Nathan Hines , Trevor Hutchinson , Deanna Jaramillo , Christine Kalogeras Loney , Ian Kern , Derek Lamppa , Kevin Yates

{"title":"Mykonos: A pulsed power driver for science and innovation","authors":"Jens Schwarz , Brian Hutsel , Thomas Awe , Bruno Bauer , Jacob Banasek , Eric Breden , Joe Chen , Michael Cuneo , Katherine Chandler , Karen DeZetter , Mark Gilmore , Matthew Gomez , Hannah Hasson , Maren Hatch , Nathan Hines , Trevor Hutchinson , Deanna Jaramillo , Christine Kalogeras Loney , Ian Kern , Derek Lamppa , Kevin Yates","doi":"10.1016/j.hedp.2024.101144","DOIUrl":"10.1016/j.hedp.2024.101144","url":null,"abstract":"<div><p>Sandia National Laboratories has been operating the Mykonos linear transformer driver (LTD) in a five-cavity configuration since 2014. The machine operates at 1MA output current, 500kV output voltage, with a 10–90% current rise time of 85ns, which enables small scale physics and engineering pulsed power experiments. Mykonos provides hands-on pulsed power experimental training for students and staff alongside senior Sandia scientists in an environment that is more accessible than the Z Facility. Over the years, we have fielded and accumulated a wide variety of optical, x-ray and electrical diagnostics and we are preparing to open this facility to outside users. Here, we are presenting the pulsed power and diagnostic capability of Mykonos as well as some recent experiments that have been performed on the facility. The goal of this publication is to attract researchers across the pulsed power and high energy density (HED) community to collaborate with Sandia on exciting, innovative science and to train the next generation of researchers for the National Nuclear Security Agency (NNSA) and the nation. As such, we have established a Mykonos Academic Access Program (MAAP) as part of ZNetUS to enable academic utilization of the Mykonos Pulsed Power Facility.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"53 ","pages":"Article 101144"},"PeriodicalIF":1.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1574181824000697/pdfft?md5=45d54956ff92e35e2faebd1e3eec6f99&pid=1-s2.0-S1574181824000697-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148472","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: 0

2D kinetic-ion simulations of inverted corona fusion targets 倒日冕聚变目标的二维动能离子模拟

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2024-12-01 Epub Date: 2024-08-28 DOI: 10.1016/j.hedp.2024.101146

William Riedel , Nathan Meezan , Drew Higginson , Matthias Hohenberger , Mark Cappelli

{"title":"2D kinetic-ion simulations of inverted corona fusion targets","authors":"William Riedel , Nathan Meezan , Drew Higginson , Matthias Hohenberger , Mark Cappelli","doi":"10.1016/j.hedp.2024.101146","DOIUrl":"10.1016/j.hedp.2024.101146","url":null,"abstract":"<div><p>Laser-driven “inverted corona” fusion targets have attracted interest as a low-convergence neutron source and platform for studying kinetic physics. The scheme consists of a hollow or gas-filled spherical shell made of deuterated plastic. The shell has one or more laser entrance holes (LEH), resembling a spherical hohlraum. The laser passes through the LEH’s and illuminates the interior surface of the shell, ablating a plasma that travels inward towards the target center. Long ion mean free paths in the converging plasma can lead to significant interpenetration, atomic mix, and other kinetic effects. In this work we report on numerical simulations of inverted corona targets using the kinetic-ion, fluid–electron hybrid particle-in-cell (PIC) approach in 2D RZ geometry. 2D simulations suggest that shape effects do not have a significant impact on plasma evolution and observed yield trends are primarily the result of 1D kinetic mix mechanisms. Simulations are also compared against available experimental data recorded at the OMEGA laser facility. In particular, synthetic x-ray emission images show good qualitative agreement with experimental results, albeit with an apparent timing discrepancy for the two-sided vacuum target. More generally, we demonstrate the potential of hybrid-PIC simulations for full-system modeling and experimental design, including collisional absorption of laser energy, plasma evolution, mix, and fusion burn.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"53 ","pages":"Article 101146"},"PeriodicalIF":1.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148344","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

Propagation of circularly polarized electromagnetic wave in magnetized spin plasma 磁化自旋等离子体中圆极化电磁波的传播

IF 1.6 3区物理与天体物理

High Energy Density Physics Pub Date : 2024-12-01 Epub Date: 2024-09-02 DOI: 10.1016/j.hedp.2024.101155

Qiang-Lin Hu , Yan-Chao She , Wen Hu , Jin-Peng Xiao , Zheng-Guo Xiao

引用次数: 0