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Ball lightning as a source of neutrino and muons at its entry into a dense medium 进入致密介质时作为中微子和μ介子源的球状闪电
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-19 DOI: 10.1016/j.hedp.2024.101085
A.G. Oreshko , A.A. Oreshko
{"title":"Ball lightning as a source of neutrino and muons at its entry into a dense medium","authors":"A.G. Oreshko ,&nbsp;A.A. Oreshko","doi":"10.1016/j.hedp.2024.101085","DOIUrl":"10.1016/j.hedp.2024.101085","url":null,"abstract":"<div><p>The phenomenon of ball lightning anomalous penetration through thick metalic absorbing filters and appearance of a dark ball lightning has been investigated. The ball lightning represents an extreme state of ionized matter in Nature. At the interaction of ball lightning with a dense medium a process of energy conversion of its own poloidal magnetic field into the kinetic energy of its charged particles occurs. The phenomenon of anomalous passage of a ball lightning within the standard model can be explained only by cascading generation of particles due to interaction of high-energy protons with an absorbing filter. The decay of pions leads either to the appearance of negative muons and muon antineutrino or positive muons and muon neutrino. This fact is confirmed by the absence of any particle imprints on the surface of this filter and the presence of a high potential of variable polarity in the region above the absorber after passing a ball lightning through it. This phenomenon of muons generation can be used to solve the problem of nuclear fusion.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"51 ","pages":"Article 101085"},"PeriodicalIF":1.6,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139922285","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
Classical Molecular dynamic codes for hot dense plasmas: The BinGo code suite 用于热致密等离子体的经典分子动力学代码：BinGo 代码套件
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-07 DOI: 10.1016/j.hedp.2024.101084
A. Calisti, S. Ferri, C. Mossé, B. Talin
{"title":"Classical Molecular dynamic codes for hot dense plasmas: The BinGo code suite","authors":"A. Calisti,&nbsp;S. Ferri,&nbsp;C. Mossé,&nbsp;B. Talin","doi":"10.1016/j.hedp.2024.101084","DOIUrl":"10.1016/j.hedp.2024.101084","url":null,"abstract":"<div><p>The purpose of this paper is to illustrate our contribution to general plasma physics studies obtained since the 90s with multiple versions and adaptations of the classical molecular dynamics (CMD) simulation interactive code called BinGo. After a description of the particulars of the CMD simulation models and the BinGo code suite, some applications are discussed for illustration. These results validate the CMD simulation as a powerful tool of investigation for hot dense plasmas.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101084"},"PeriodicalIF":1.6,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1574181824000090/pdfft?md5=7b9b0f7d949a6925c6483736a9502d5c&pid=1-s2.0-S1574181824000090-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139817513","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
Equation of state and Hugoniot of warm dense xenon: Application of average atom-in-jellium model 暖致密氙的状态方程和休格尼奥特：平均原子-侏罗模型的应用
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-03 DOI: 10.1016/j.hedp.2024.101083
Guicun Ma, Jin Qi
{"title":"Equation of state and Hugoniot of warm dense xenon: Application of average atom-in-jellium model","authors":"Guicun Ma,&nbsp;Jin Qi","doi":"10.1016/j.hedp.2024.101083","DOIUrl":"10.1016/j.hedp.2024.101083","url":null,"abstract":"<div><p>In warm dense xenon, thermally excited and pressure-ionized electrons are essential for calculating the equation of state; however, the classical Thomas Fermi model is unsuitable for describing this state. Therefore it is necessary to find an appropriate theoretical model to express the thermal characteristics of electrons in warm dense Xe. In this study, we use the average atom-in-jellium(AJ) model to compute the contribution of thermally excited and pressure-ionized electrons of Xe over a wide range of temperatures and densities. The electron resonance state in the AJ model is treated by the adaptive mesh movement method. Moreover a method for correcting the cold pressure curve(which is used in the liquid phase calculations) in the AJ model is proposed. For the liquid phase, the ion motion contribution is expressed by the liquid perturbation theory of the corrected rigid-ion sphere model. For the solid phase, the ion motion contribution is described by the Debye model combined with anharmonic correction. Our calculated Hugoniot curve of Xe coincides with those of the experiments, first-principles density functional calculations and other theoretical models. The melting line of Xe is also consistent with the results of first-principle calculations and other theoretical models.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101083"},"PeriodicalIF":1.6,"publicationDate":"2024-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139679443","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
Supersonic radiation wave in doped low density foam 掺杂低密度泡沫中的超音速辐射波
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-01 DOI: 10.1016/j.hedp.2024.101082
Avner P. Cohen , Elad Malka , Guy Malamud
{"title":"Supersonic radiation wave in doped low density foam","authors":"Avner P. Cohen ,&nbsp;Elad Malka ,&nbsp;Guy Malamud","doi":"10.1016/j.hedp.2024.101082","DOIUrl":"10.1016/j.hedp.2024.101082","url":null,"abstract":"<div><p>Supersonic heat (Marshak) waves are radiation dominated, and play an important role in inertial confinement fusion and in astrophysical and laboratory systems. Doping the foam with heavy metals with high opacity cause dramatic changing of the heat wave behavior by the changing of the material opacity. For that reason, the effects of doping on heat waves propagation in low density foams have been measured in a number of experiments reported in the literature. The present study uses the NIF facility advantages to overcome the two main problems that have been identified in earlier works: the radiation pre-heat; and the considerable experimental uncertainties in respect to the physical phenomena. The new experiment will be able to measure the coupling between opacity and the heat wave progress and evolution, because the heat wave progress in a doped foam is expected to be very similar to the heat wave progress in the pure foam, when the latter’s absorption cross-section is simply scale by multiplying with a constant factor.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101082"},"PeriodicalIF":1.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139669731","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
Krypton Heβ line spectrum including n = 2, 3 Li-like satellites with detailed Stark broadened line shapes 氪 Heβ 线光谱，包括 n=2,3 个类锂卫星和详细的斯塔克展宽线形
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-01 DOI: 10.1016/j.hedp.2024.101081
{"title":"Krypton Heβ line spectrum including n = 2, 3 Li-like satellites with detailed Stark broadened line shapes","authors":"","doi":"10.1016/j.hedp.2024.101081","DOIUrl":"10.1016/j.hedp.2024.101081","url":null,"abstract":"<div><p><span>We discuss the krypton He</span><span><math><mi>β</mi></math></span><span><span> line spectrum<span><span> including Li-like satellites with a spectator electron in n = 2 and n = 3 and detailed line shapes computed using standard Stark broadening theory for hot dense plasma<span> conditions relevant to X-ray tracer spectroscopy of inertial confinement fusion implosion cores. The results show that the interference term in the electron broadening does not produce a significant effect for these satellite transitions. However, the effect of the electric field mixing of the energy levels driven by the ion’s microfield distribution does produce a significant change in the line shape. Level populations calculated with a collisional radiative atomic kinetics model were employed to obtain the photon energy resolved emissivity and opacity using the Stark line shapes, and the emergent intensity distribution was calculated by integrating the radiation transport equation along chords assuming a uniform spherical plasma source. The </span></span>line spectrum has </span></span>electron temperature (</span><span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span>) and density (<span><math><msub><mrow><mi>n</mi></mrow><mrow><mi>e</mi></mrow></msub></math></span><span>) sensitivity due to the temperature and density dependence of level populations and the density dependence of the Stark line shapes. Hence, this spectrum is suitable for a simultaneous temperature and density plasma diagnostic of implosion cores.</span></p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"52 ","pages":"Article 101081"},"PeriodicalIF":1.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139658515","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
Classical Molecular dynamic codes for hot dense plasmas: The BinGo code suite 用于热致密等离子体的经典分子动力学代码：BinGo 代码套件
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-02-01 DOI: 10.1016/j.hedp.2024.101084
A. Calisti, S. Ferri, C. Mossé, B. Talin
{"title":"Classical Molecular dynamic codes for hot dense plasmas: The BinGo code suite","authors":"A. Calisti, S. Ferri, C. Mossé, B. Talin","doi":"10.1016/j.hedp.2024.101084","DOIUrl":"https://doi.org/10.1016/j.hedp.2024.101084","url":null,"abstract":"","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"20 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139877450","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
A note on efficiently generating ionic configurations for opacity calculations 关于为不透明度计算有效生成离子构型的说明
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-01-23 DOI: 10.1016/j.hedp.2024.101079
Daniel Aberg, Paul Grabowski, Michael Kruse, Brian G. Wilson
{"title":"A note on efficiently generating ionic configurations for opacity calculations","authors":"Daniel Aberg,&nbsp;Paul Grabowski,&nbsp;Michael Kruse,&nbsp;Brian G. Wilson","doi":"10.1016/j.hedp.2024.101079","DOIUrl":"10.1016/j.hedp.2024.101079","url":null,"abstract":"<div><p>When calculating the spectral opacity of hot dense plasmas one often encounters the need to generate a list of detailed ionic configurations of bound states for each ion stage in the plasma. We present here a non-recursive algorithm for the efficient construction of such a list of states.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101079"},"PeriodicalIF":1.6,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139579984","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
Machine learning assisted bayesian inference of mix and hot-spot conditions in NIF implosions 机器学习辅助贝叶斯推断 NIF 内爆的混合和热点条件。
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-01-22 DOI: 10.1016/j.hedp.2024.101077
B.A. Hammel, B.D. Hammel, H.A. Scott, J. Luc Peterson
{"title":"Machine learning assisted bayesian inference of mix and hot-spot conditions in NIF implosions","authors":"B.A. Hammel,&nbsp;B.D. Hammel,&nbsp;H.A. Scott,&nbsp;J. Luc Peterson","doi":"10.1016/j.hedp.2024.101077","DOIUrl":"10.1016/j.hedp.2024.101077","url":null,"abstract":"<div><p>Experiments on the National Ignition Facility (NIF) have provided clear evidence of ablator material mixing into the Hot-Spot, leading to degraded performance. However, inferring the amount of mix and Hot-Spot conditions from typical experimental observations (e.g. x-ray spectra and images) is highly challenging. We have developed an analysis method that utilizes machine learning assisted Bayesian inference to find the probability distributions of the Hot-Spot and mix conditions. This approach uses a neural network, trained on an idealized 2-dimensional representation of the Hot-Spot and mix distribution, and Bayesian inference to find the statistical distributions of Hot-Spot conditions that provide a match with observations. We have tested this method with synthetic data from simulations.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101077"},"PeriodicalIF":1.6,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139517472","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
Comparison of second-order spectral line widths formulae 二阶光谱线宽公式的比较
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-01-18 DOI: 10.1016/j.hedp.2024.101080
Carlos A. Iglesias , Thomas A. Gomez
{"title":"Comparison of second-order spectral line widths formulae","authors":"Carlos A. Iglesias ,&nbsp;Thomas A. Gomez","doi":"10.1016/j.hedp.2024.101080","DOIUrl":"10.1016/j.hedp.2024.101080","url":null,"abstract":"<div><p><span>Frequently used second-order spectral line width formulae from the projector operator and </span>kinetic theory methods have not been formally compared previously. It is shown that a systematic second-order expansion of the projection operator expression including initial correlations agrees with the second-order kinetic theory result. The agreement assumes a common approximation in the projector operator method that introduces a screened radiator–perturber interaction to account for neglected electron–electron correlations. On the other hand, it is shown that the usual width expression from the projection operator approach neglecting initial correlations differs from kinetic theory. The differences, however, are at least third order in the radiator–perturber interaction. The comparisons suggest using the more compact width expression from kinetic theory, which includes initial correlations and a systematic screening of the radiator–perturber interactions, as the starting point for second-order width calculations.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101080"},"PeriodicalIF":1.6,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139500270","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
Toward constraint of ionization-potential depression models in a convergent geometry 收敛几何中电离电位抑制模型的制约
IF 1.6 3区 物理与天体物理
High Energy Density Physics Pub Date : 2024-01-03 DOI: 10.1016/j.hedp.2024.101076
D.T. Bishel , P.M. Nilson , D.A. Chin , J.J. Ruby , E. Smith , S.X. Hu , R. Epstein , I.E. Golovkin , J.R. Rygg , G.W. Collins
{"title":"Toward constraint of ionization-potential depression models in a convergent geometry","authors":"D.T. Bishel ,&nbsp;P.M. Nilson ,&nbsp;D.A. Chin ,&nbsp;J.J. Ruby ,&nbsp;E. Smith ,&nbsp;S.X. Hu ,&nbsp;R. Epstein ,&nbsp;I.E. Golovkin ,&nbsp;J.R. Rygg ,&nbsp;G.W. Collins","doi":"10.1016/j.hedp.2024.101076","DOIUrl":"10.1016/j.hedp.2024.101076","url":null,"abstract":"<div><p>We demonstrate the value of inner-shell X-ray absorption spectroscopy for dense-plasma atomic physics and explore the coupling between constraint of the thermodynamic state and constraint of ionization-potential depression models. Synthetic K-shell absorption spectra are generated along a radius from a point-like core and analyzed using different ionization-potential depression models. Within this synthetic analysis framework, we identify plasma conditions (<span><math><mrow><msub><mrow><mi>T</mi></mrow><mrow><mi>e</mi></mrow></msub><mo>=</mo><mn>400</mn></mrow></math></span> eV, <span><math><mrow><mi>ρ</mi><mo>=</mo><mn>40</mn></mrow></math></span> g/cm<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span>) accessible by spherical implosions where K-shell absorption spectra discriminate between models if the material temperature is measured to a precision of 20%. The analysis is extensible to a finite-sized core and can be used to guide future studies of ionization-potential depression, informing material and radiative properties of matter in fusion plasmas and stellar interiors.</p></div>","PeriodicalId":49267,"journal":{"name":"High Energy Density Physics","volume":"50 ","pages":"Article 101076"},"PeriodicalIF":1.6,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1574181824000016/pdfft?md5=3638bbcfcaddbd90bd36b1e25905472a&pid=1-s2.0-S1574181824000016-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139102391","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
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