Matter and Radiation at Extremes最新文献_第5页

Five-view three-dimensional reconstruction for ultrafast dynamic imaging of pulsed radiation sources 脉冲辐射源超快动态成像的五视角三维重建

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2024-01-02 DOI: 10.1063/5.0177342

Jianpeng Gao, Liang Sheng, Xinyi Wang, Yanhong Zhang, Liang Li, Baojun Duan, Mei Zhang, Yang Li, Dongwei Hei

{"title":"Five-view three-dimensional reconstruction for ultrafast dynamic imaging of pulsed radiation sources","authors":"Jianpeng Gao, Liang Sheng, Xinyi Wang, Yanhong Zhang, Liang Li, Baojun Duan, Mei Zhang, Yang Li, Dongwei Hei","doi":"10.1063/5.0177342","DOIUrl":"https://doi.org/10.1063/5.0177342","url":null,"abstract":"Multiaxial neutron/x-ray imaging and three-dimensional (3D) reconstruction techniques play a crucial role in gaining valuable insights into the generation and evolution mechanisms of pulsed radiation sources. Owing to the short emission time (∼200 ns) and drastic changes of the pulsed radiation source, it is necessary to acquire projection data within a few nanoseconds in order to achieve clear computed tomography 3D imaging. As a consequence, projection data that can be used for computed tomography image reconstruction at a certain moment are often available for only a few angles. Traditional algorithms employed in the process of reconstructing 3D images with extremely incomplete data may introduce significant distortions and artifacts into the final image. In this paper, we propose an iterative image reconstruction method using cylindrical harmonic decomposition and a self-supervised denoising network algorithm based on the deep image prior method. We augment the prior information with a 2D total variation prior and a 3D deep image prior. Single-wire Z-pinch imaging experiments have been carried out at Qin-1 facility in five views and four frames, with a time resolution of 3 ns for each frame and a time interval of 40 ns between adjacent frames. Both numerical simulations and experiments verify that our proposed algorithm can achieve high-quality reconstruction results and obtain the 3D intensity distribution and evolution of extreme ultraviolet and soft x-ray emission from plasma.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"128 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139084762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Study of the spatial growth of stimulated Brillouin scattering in a gas-filled Hohlraum via detecting the driven ion acoustic wave 通过探测驱动离子声波研究充满气体的霍姆腔中受激布里渊散射的空间增长情况

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2024-01-02 DOI: 10.1063/5.0173023

Chaoxin Chen, Tao Gong, Zhichao Li, Liang Hao, Yonggang Liu, Xiangming Liu, Hang Zhao, Yaoyuan Liu, Kaiqiang Pan, Qi Li, Sanwei Li, Zhijun Li, Sai Jin, Feng Wang, Dong Yang

{"title":"Study of the spatial growth of stimulated Brillouin scattering in a gas-filled Hohlraum via detecting the driven ion acoustic wave","authors":"Chaoxin Chen, Tao Gong, Zhichao Li, Liang Hao, Yonggang Liu, Xiangming Liu, Hang Zhao, Yaoyuan Liu, Kaiqiang Pan, Qi Li, Sanwei Li, Zhijun Li, Sai Jin, Feng Wang, Dong Yang","doi":"10.1063/5.0173023","DOIUrl":"https://doi.org/10.1063/5.0173023","url":null,"abstract":"In an experiment performed on the Shenguang-III prototype laser facility, collective Thomson scattering (TS) is used to study the spatial growth of stimulated Brillouin scattering (SBS) in a gas-filled Hohlraum by detecting the SBS-driven ion acoustic wave. High-quality time-resolved SBS and TS spectra are obtained simultaneously in the experiment, and these are analyzed by a steady-state code based on the ray-tracing model. The analysis indicates that ion–ion collisions may play an important role in suppressing SBS growth in the Au plasma; as a result, the SBS excited in the filled gas region is dominant. In the early phase of the laser pulse, SBS originates primarily from the high-density plasma at the edges of the interaction beam channel, which is piled up by the heating of the interaction beam. Throughout the duration of the laser pulse, the presence of the TS probe beam might mitigate SBS by perturbing the density distribution around the region overlapping with the interaction beam.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"45 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139083550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Relay, for a better MRE! 中继器，为了更好的 MRE！

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2024-01-01 DOI: 10.1063/5.0187709

Ke Lan

引用次数: 0

Collisionless shock acceleration of protons in a plasma slab produced in a gas jet by the collision of two laser-driven hydrodynamic shockwaves 两个激光驱动的流体动力冲击波碰撞产生的等离子体板中质子的无碰撞冲击加速度

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-12-22 DOI: 10.1063/5.0178253

J.-R. Marquès, L. Lancia, P. Loiseau, P. Forestier-Colleoni, M. Tarisien, E. Atukpor, V. Bagnoud, C. Brabetz, F. Consoli, J. Domange, F. Hannachi, P. Nicolaï, M. Salvadori, B. Zielbauer

{"title":"Collisionless shock acceleration of protons in a plasma slab produced in a gas jet by the collision of two laser-driven hydrodynamic shockwaves","authors":"J.-R. Marquès, L. Lancia, P. Loiseau, P. Forestier-Colleoni, M. Tarisien, E. Atukpor, V. Bagnoud, C. Brabetz, F. Consoli, J. Domange, F. Hannachi, P. Nicolaï, M. Salvadori, B. Zielbauer","doi":"10.1063/5.0178253","DOIUrl":"https://doi.org/10.1063/5.0178253","url":null,"abstract":"We have recently proposed a new technique of plasma tailoring by laser-driven hydrodynamic shockwaves generated on both sides of a gas jet [Marquès et al., Phys. Plasmas 28, 023103 (2021)]. In a continuation of this numerical work, we study experimentally the influence of the tailoring on proton acceleration driven by a high-intensity picosecond laser in three cases: without tailoring, by tailoring only the entrance side of the picosecond laser, and by tailoring both sides of the gas jet. Without tailoring, the acceleration is transverse to the laser axis, with a low-energy exponential spectrum, produced by Coulomb explosion. When the front side of the gas jet is tailored, a forward acceleration appears, which is significantly enhanced when both the front and back sides of the plasma are tailored. This forward acceleration produces higher-energy protons, with a peaked spectrum, and is in good agreement with the mechanism of collisionless shock acceleration (CSA). The spatiotemporal evolution of the plasma profile is characterized by optical shadowgraphy of a probe beam. The refraction and absorption of this beam are simulated by post-processing 3D hydrodynamic simulations of the plasma tailoring. Comparison with the experimental results allows estimation of the thickness and near-critical density of the plasma slab produced by tailoring both sides of the gas jet. These parameters are in good agreement with those required for CSA.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"41 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139031811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Distinct vibrational signatures and complex phase behavior in metallic oxygen 金属氧中不同的振动特征和复杂的相行为

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-12-14 DOI: 10.1063/5.0160060

Philip Dalladay-Simpson, Bartomeu Monserrat, Li Zhang, Federico Gorelli

{"title":"Distinct vibrational signatures and complex phase behavior in metallic oxygen","authors":"Philip Dalladay-Simpson, Bartomeu Monserrat, Li Zhang, Federico Gorelli","doi":"10.1063/5.0160060","DOIUrl":"https://doi.org/10.1063/5.0160060","url":null,"abstract":"Evidence for metallization in dense oxygen has been reported for over 30 years [Desgreniers et al., J. Phys. Chem. 94, 1117 (1990)] at a now routinely accessible 95 GPa [Shimizu et al., Nature 393, 767 (1998)]. However, despite the longevity of this result and the technological advances since, the nature of the metallic phase remains poorly constrained [Akahama et al., Phys. Rev. Lett. 74, 4690 (1995); Goncharov et al., Phys. Rev. B 68, 224108 (2003); Ma, Phys. Rev. B 76, 064101 (2007); and Weck et al., Phys. Rev. Lett. 102, 255503 (2009)]. In this work, through Raman spectroscopy, we report the distinct vibrational characteristics of metallic ζ-O2 from 85 to 225 GPa. In comparison with numerical simulations, we find reasonable agreement with the C2/m candidate structure up to about 150 GPa. At higher pressures, the C2/m structure is found to be unstable and incompatible with experimental observations. Alternative candidate structures, C2/c and Ci, with only two molecules in the primitive unit cell, are found to be stable and more compatible with measurements above 175 GPa, indicative of the dissociation of (O2)4 units. Further, we report and discuss a strong hysteresis and metastability with the precursory phase ϵ-O2. These findings will reinvigorate experimental and theoretical work into the dense oxygen system, which will have importance for oxygen-bearing chemistry, prevalent in the deep Earth, as well as fundamental physics.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"40 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138688556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Resistive field generation in intense proton beam interaction with solid targets 强质子束与固体靶相互作用时产生的电阻场

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-12-06 DOI: 10.1063/5.0172035

W. Q. Wang, J. J. Honrubia, Y. Yin, X. H. Yang, F. Q. Shao

引用次数: 0

Design of high-temperature superconductors at moderate pressures by alloying AlH3 or GaH3 用AlH3或GaH3合金化设计中压高温超导体

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-12-01 DOI: 10.1063/5.0159590

Xiaowei Liang, Xudong Wei, Eva Zurek, Aitor Bergara, Peifang Li, Guoying Gao, Yongjun Tian

{"title":"Design of high-temperature superconductors at moderate pressures by alloying AlH3 or GaH3","authors":"Xiaowei Liang, Xudong Wei, Eva Zurek, Aitor Bergara, Peifang Li, Guoying Gao, Yongjun Tian","doi":"10.1063/5.0159590","DOIUrl":"https://doi.org/10.1063/5.0159590","url":null,"abstract":"Since the discovery of hydride superconductors, a significant challenge has been to reduce the pressure required for their stabilization. In this context, we propose that alloying could be an effective strategy to achieve this. We focus on a series of alloyed hydrides with the AMH6 composition, which can be made via alloying A15 AH3 (A = Al or Ga) with M (M = a group ⅢB or IVB metal), and study their behavior under pressure. Seven of them are predicted to maintain the A15-type structure, similar to AH3 under pressure, providing a platform for studying the effects of alloying on the stability and superconductivity of AH3. Among these, the A15-type phases of AlZrH6 and AlHfH6 are found to be thermodynamically stable in the pressure ranges of 40–150 and 30–181 GPa, respectively. Furthermore, they remain dynamically stable at even lower pressures, as low as 13 GPa for AlZrH6 and 6 GPa for AlHfH6. These pressures are significantly lower than that required for stabilizing A15 AlH3. Additionally, the introduction of Zr or Hf increases the electronic density of states at the Fermi level compared with AlH3. This enhancement leads to higher critical temperatures (Tc) of 75 and 76 K for AlZrH6 and AlHfH6 at 20 and 10 GPa, respectively. In the case of GaMH6 alloys, where M represents Sc, Ti, Zr, or Hf, these metals reinforce the stability of the A15-type structure and reduce the lowest thermodynamically stable pressure for GaH3 from 160 GPa to 116, 95, 80, and 85 GPa, respectively. Particularly noteworthy are the A15-type GaMH6 alloys, which remain dynamically stable at low pressures of 97, 28, 5, and 6 GPa, simultaneously exhibiting high Tc of 88, 39, 70, and 49 K at 100, 35, 10, and 10 GPa, respectively. Overall, these findings enrich the family of A15-type superconductors and provide insights for the future exploration of high-temperature hydride superconductors that can be stabilized at lower pressures.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"31 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Backward scattering of laser plasma interactions from hundreds-of-joules broadband laser on thick target 厚靶上百焦耳宽带激光等离子体相互作用的后向散射

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-11-22 DOI: 10.1063/5.0122406

Peipei Wang, Honghai An, Zhiheng Fang, Jun Xiong, Zhiyong Xie, Chen Wang, Zhiyu He, Guo Jia, Ruirong Wang, Shu Zheng, Lan Xia, Wei Feng, Haitao Shi, Wei Wang, Jinren Sun, Yanqi Gao, Sizu Fu

引用次数: 0

Semi-hydro-equivalent design and performance extrapolation between 100 kJ-scale and NIF-scale indirect drive implosion 100 kj级和nif级间接驱动内爆的半水当量设计及性能外推

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-11-17 DOI: 10.1063/5.0150343

Huasen Zhang, Dongguo Kang, Changshu Wu, Liang Hao, Hao Shen, Shiyang Zou, Shaoping Zhu, Yongkun Ding

{"title":"Semi-hydro-equivalent design and performance extrapolation between 100 kJ-scale and NIF-scale indirect drive implosion","authors":"Huasen Zhang, Dongguo Kang, Changshu Wu, Liang Hao, Hao Shen, Shiyang Zou, Shaoping Zhu, Yongkun Ding","doi":"10.1063/5.0150343","DOIUrl":"https://doi.org/10.1063/5.0150343","url":null,"abstract":"Extrapolation of implosion performance between different laser energy scales is investigated for indirect drive through a semi-hydro-equivalent design. Since radiation transport is non-hydro-equivalent, the peak radiation temperature of the hohlraum and the ablation velocity of the capsule ablator are not scale-invariant when the sizes of the hohlraum and the capsule are scale-varied. A semi-hydro-equivalent design method that keeps the implosion velocity Vi, adiabat αF, and PL/Rhc2 (where PL is the laser power and Rhc is the hohlraum and capsule scale length) scale-invariant, is proposed to create hydrodynamically similar implosions. The semi-hydro-equivalent design and the scaled implosion performance are investigated for the 100 kJ Laser Facility (100 kJ-scale) and the National Ignition Facility (NIF-scale) with about 2 MJ laser energy. It is found that the one-dimensional implosion performance is approximately hydro-equivalent when Vi and αF are kept the same. Owing to the non-hydro-equivalent radiation transport, the yield-over-clean without α-particle heating (YOCnoα) is slightly lower at 100 kJ-scale than at NIF-scale for the same scaled radiation asymmetry or the same initial perturbation of the hydrodynamic instability. The overall scaled two-dimensional implosion performance is slightly lower at 100 kJ-scale. The general Lawson criterion factor scales as χnoα2D∼S1.06±0.04 (where S is the scale-variation factor) for the semi-hydro-equivalent implosion design with a moderate YOCnoα. Our study indicates that χnoα ≈ 0.379 is the minimum requirement for the 100 kJ-scale implosion to demonstrate the ability to achieve marginal ignition at NIF-scale.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"254 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The acceleration of a high-charge electron bunch to 10 GeV in a 10-cm nanoparticle-assisted wakefield accelerator 高电荷电子束在10厘米纳米粒子辅助尾流场加速器中加速到10 GeV

IF 5.1 1区物理与天体物理

Matter and Radiation at Extremes Pub Date : 2023-11-15 DOI: 10.1063/5.0161687

Constantin Aniculaesei, Thanh Ha, Samuel Yoffe, Lance Labun, Stephen Milton, Edward McCary, Michael M. Spinks, Hernan J. Quevedo, Ou Z. Labun, Ritwik Sain, Andrea Hannasch, Rafal Zgadzaj, Isabella Pagano, Jose A. Franco-Altamirano, Martin L. Ringuette, Erhart Gaul, Scott V. Luedtke, Ganesh Tiwari, Bernhard Ersfeld, Enrico Brunetti, Hartmut Ruhl, Todd Ditmire, Sandra Bruce, Michael E. Donovan, Michael C. Downer, Dino A. Jaroszynski, Bjorn Manuel Hegelich

{"title":"The acceleration of a high-charge electron bunch to 10 GeV in a 10-cm nanoparticle-assisted wakefield accelerator","authors":"Constantin Aniculaesei, Thanh Ha, Samuel Yoffe, Lance Labun, Stephen Milton, Edward McCary, Michael M. Spinks, Hernan J. Quevedo, Ou Z. Labun, Ritwik Sain, Andrea Hannasch, Rafal Zgadzaj, Isabella Pagano, Jose A. Franco-Altamirano, Martin L. Ringuette, Erhart Gaul, Scott V. Luedtke, Ganesh Tiwari, Bernhard Ersfeld, Enrico Brunetti, Hartmut Ruhl, Todd Ditmire, Sandra Bruce, Michael E. Donovan, Michael C. Downer, Dino A. Jaroszynski, Bjorn Manuel Hegelich","doi":"10.1063/5.0161687","DOIUrl":"https://doi.org/10.1063/5.0161687","url":null,"abstract":"An intense laser pulse focused onto a plasma can excite nonlinear plasma waves. Under appropriate conditions, electrons from the background plasma are trapped in the plasma wave and accelerated to ultra-relativistic velocities. This scheme is called a laser wakefield accelerator. In this work, we present results from a laser wakefield acceleration experiment using a petawatt-class laser to excite the wakefields as well as nanoparticles to assist the injection of electrons into the accelerating phase of the wakefields. We find that a 10-cm-long, nanoparticle-assisted laser wakefield accelerator can generate 340 pC, 10 ± 1.86 GeV electron bunches with a 3.4 GeV rms convolved energy spread and a 0.9 mrad rms divergence. It can also produce bunches with lower energies in the 4–6 GeV range.","PeriodicalId":54221,"journal":{"name":"Matter and Radiation at Extremes","volume":"45 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 4