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Mukhin IB, Glushkov KA, Soloviev AA, Shaykin AA, Ginzburg VN, Kuzmin IV, Martyanov MA, Stukachev SE, Mironov SY, Yakovlev IV, Khazanov EA. Upgrading the front end of the petawatt-class PEARL laser facility. APPLIED OPTICS 2023; 62:2554-2559. [PMID: 37132803 DOI: 10.1364/ao.483533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A new front-end laser system with optical synchronization of chirped femtosecond and pump pulses for the petawatt laser complex PEtawatt pARametric Laser (PEARL) has been developed. The new front-end system provides a broader femtosecond pulse spectrum, temporal shaping of the pump pulse, and a significant increase in the stability of the parametric amplification stages of the PEARL.
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Luchinin AG, Malyshev VA, Kopelovich EA, Burdonov KF, Gushchin ME, Morozkin MV, Proyavin MD, Rozental RM, Soloviev AA, Starodubtsev MV, Fokin AP, Fuchs J, Glyavin MY. Pulsed magnetic field generation system for laser-plasma research. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:123506. [PMID: 34972475 DOI: 10.1063/5.0035302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 11/17/2021] [Indexed: 06/14/2023]
Abstract
An up to 15 T pulsed magnetic field generator in a volume of a few cubic centimeters has been developed for experiments with magnetized laser plasma. The magnetic field is created by a pair of coils placed in a sealed reservoir with liquid nitrogen, installed in a vacuum chamber with a laser target. The bearing body provides the mechanical strength of the system both in the case of co-directional and oppositely connected coils. The configuration of the housing allows laser radiation to be introduced into the working area between the coils in a wide range of directions and focusing angles, places targets away from the symmetry axis of the magnetic system, and irradiates several targets simultaneously.
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Affiliation(s)
- A G Luchinin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - V A Malyshev
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - E A Kopelovich
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - K F Burdonov
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - M E Gushchin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - M V Morozkin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - M D Proyavin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - R M Rozental
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - A A Soloviev
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - M V Starodubtsev
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - A P Fokin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - J Fuchs
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
| | - M Yu Glyavin
- Institute of Applied Physics RAS (IAP RAS), Nizhny Novgorod 603950, Russia
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Wang Z, Pan Y, Gong Y, Cao B, Zhou Z, Sun L, Geng Y, Wang J. 3D reconstruction of dynamic behaviors of vacuum arcs under transverse magnetic fields via computer tomography. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:063511. [PMID: 34243551 DOI: 10.1063/5.0051622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/14/2021] [Indexed: 06/13/2023]
Abstract
The transverse magnetic field (TMF) contacts make the vacuum arcs deviate from the axisymmetric structure, so complete spatiotemporal evolution information of the plasma cannot be obtained by adopting one- or two-dimensional (2D) diagnostic methods. To address the issues, computer tomography was introduced in this paper. First, a multi-angle diagnostic imaging system based on split fiber bundles was proposed, which used a high-speed camera to simultaneously acquire eight angles of the arc image over time. In addition, a tomography algorithm called the maximum likelihood expectation maximum with Split Bregman denoising was proposed to reconstruct the dynamic spatiotemporal characteristics of the arc under complex conditions. Then, the three-dimensional (3D) distribution of Cu i and Cr i particles inside the contact gap was obtained by adopting optical filters. The 3D distribution of the vacuum arc had shown an obvious asymmetrical pattern under the TMF contacts, and there was a ring-like aggregation zone inside the arc, which can cause severe ablation on the anode contacts. According to the reconstructed 3D distribution of Cu i and Cr i, it is found that the metal vapor was mainly concentrated near the electrode surface and showed a clear distribution of non-uniform aggregates, while the concentration of particles in the gap was low. Moreover, on the cathode surface, the cathode spots moved in the form of groups driven by the TMF, while the anode surface was ablated by the electric arc, and the metal vapor existed in the form of bands.
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Affiliation(s)
- Zhenxing Wang
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Yangbo Pan
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Yujie Gong
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Bo Cao
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Zhipeng Zhou
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Liqiong Sun
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Yingsan Geng
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
| | - Jianhua Wang
- State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, China
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Enhanced X-ray emission arising from laser-plasma confinement by a strong transverse magnetic field. Sci Rep 2021; 11:8180. [PMID: 33854146 PMCID: PMC8047033 DOI: 10.1038/s41598-021-87651-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/30/2021] [Indexed: 11/28/2022] Open
Abstract
We analyze, using experiments and 3D MHD numerical simulations, the dynamic and radiative properties of a plasma ablated by a laser (1 ns, 10\documentclass[12pt]{minimal}
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\begin{document}$$^2$$\end{document}2) from a solid target as it expands into a homogeneous, strong magnetic field (up to 30 T) that is transverse to its main expansion axis. We find that as early as 2 ns after the start of the expansion, the plasma becomes constrained by the magnetic field. As the magnetic field strength is increased, more plasma is confined close to the target and is heated by magnetic compression. We also observe that after \documentclass[12pt]{minimal}
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\begin{document}$$\sim 8$$\end{document}∼8 ns, the plasma is being overall shaped in a slab, with the plasma being compressed perpendicularly to the magnetic field, and being extended along the magnetic field direction. This dense slab rapidly expands into vacuum; however, it contains only \documentclass[12pt]{minimal}
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\begin{document}$$\sim 2\%$$\end{document}∼2% of the total plasma. As a result of the higher density and increased heating of the plasma confined against the laser-irradiated solid target, there is a net enhancement of the total X-ray emissivity induced by the magnetization.
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Sabet N, Hassanzadeh H, De Wit A, Abedi J. Scalings of Rayleigh-Taylor Instability at Large Viscosity Contrasts in Porous Media. PHYSICAL REVIEW LETTERS 2021; 126:094501. [PMID: 33750169 DOI: 10.1103/physrevlett.126.094501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
The scalings of the Rayleigh-Taylor instability are studied numerically for porous media flows when the denser fluid lying on top of the less dense one is also much more viscous. We show that, above a critical value of the viscosity ratio M, a symmetry breaking of the buoyancy-driven fingers is observed as they extend much further downward than upward. The asymmetry ratio scales as M^{1/2} while the asymptotic flux across the initial contact line, quantifying the mixing between the two fluids, scales as M^{-1/2}. A new fingering mechanism induced by large viscosity contrasts is identified and shows good agreement with experimentally observed dynamics.
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Affiliation(s)
- N Sabet
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - H Hassanzadeh
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - A De Wit
- Université libre de Bruxelles (ULB), Nonlinear Physical Chemistry Unit, Faculté des Sciences, CP231, 1050 Brussels, Belgium
| | - J Abedi
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
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Revet G, Khiar B, Filippov E, Argiroffi C, Béard J, Bonito R, Cerchez M, Chen SN, Gangolf T, Higginson DP, Mignone A, Olmi B, Ouillé M, Ryazantsev SN, Skobelev IY, Safronova MI, Starodubtsev M, Vinci T, Willi O, Pikuz S, Orlando S, Ciardi A, Fuchs J. Laboratory disruption of scaled astrophysical outflows by a misaligned magnetic field. Nat Commun 2021; 12:762. [PMID: 33536408 PMCID: PMC7858631 DOI: 10.1038/s41467-021-20917-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/30/2020] [Indexed: 11/09/2022] Open
Abstract
The shaping of astrophysical outflows into bright, dense, and collimated jets due to magnetic pressure is here investigated using laboratory experiments. Here we look at the impact on jet collimation of a misalignment between the outflow, as it stems from the source, and the magnetic field. For small misalignments, a magnetic nozzle forms and redirects the outflow in a collimated jet. For growing misalignments, this nozzle becomes increasingly asymmetric, disrupting jet formation. Our results thus suggest outflow/magnetic field misalignment to be a plausible key process regulating jet collimation in a variety of objects from our Sun’s outflows to extragalatic jets. Furthermore, they provide a possible interpretation for the observed structuring of astrophysical jets. Jet modulation could be interpreted as the signature of changes over time in the outflow/ambient field angle, and the change in the direction of the jet could be the signature of changes in the direction of the ambient field. Mass outflow is a common process in astrophysical objects. Here the authors investigate in which conditions an astrophysically-scaled laser-produced plasma flow can be collimated and evolves in the presence of a misaligned external magnetic field.
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Affiliation(s)
- G Revet
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia.,LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.,Centre Laser Intenses et Applications, Université de Bordeaux-CNRS-CEA, Talence, France
| | - B Khiar
- Sorbonne Université, Observatoire de Paris, PSL Research University, LERMA, Paris, France.,Flash Center for Computational Science, University of Chicago, Chicago, USA
| | - E Filippov
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia.,Joint Institute for High Temperatures RAS, Moscow, Russia
| | - C Argiroffi
- Dipartimento di Fisica e Chimica, Universitá di Palermo, Palermo, Italy.,INAF-Osservatorio Astronomico di Palermo, Palermo, Italy
| | - J Béard
- LNCMI, UPR 3228, CNRS-UGA-UPS-INSA, Toulouse, France
| | - R Bonito
- INAF-Osservatorio Astronomico di Palermo, Palermo, Italy
| | - M Cerchez
- Institut für Laser und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Düsseldorf, Germany
| | - S N Chen
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia.,ELI-NP, Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
| | - T Gangolf
- LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.,Institut für Laser und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Düsseldorf, Germany
| | - D P Higginson
- LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.,Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - A Mignone
- Dip. di Fisica, Universiá di Torino, Torino, Italy
| | - B Olmi
- INAF-Osservatorio Astronomico di Palermo, Palermo, Italy.,INAF-Osservatorio Astrofisico di Arcetri, Firenze, Italy
| | - M Ouillé
- LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - S N Ryazantsev
- Joint Institute for High Temperatures RAS, Moscow, Russia.,National Research Nuclear University 'MEPhI', Moscow, Russia
| | - I Yu Skobelev
- Joint Institute for High Temperatures RAS, Moscow, Russia.,National Research Nuclear University 'MEPhI', Moscow, Russia
| | - M I Safronova
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia
| | - M Starodubtsev
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia
| | - T Vinci
- LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - O Willi
- Institut für Laser und Plasmaphysik, Heinrich Heine Universität Düsseldorf, Düsseldorf, Germany
| | - S Pikuz
- Joint Institute for High Temperatures RAS, Moscow, Russia.,National Research Nuclear University 'MEPhI', Moscow, Russia
| | - S Orlando
- INAF-Osservatorio Astronomico di Palermo, Palermo, Italy
| | - A Ciardi
- Sorbonne Université, Observatoire de Paris, PSL Research University, LERMA, Paris, France.
| | - J Fuchs
- Institute of Applied Physics RAS, Nizhny Novgorod, Russia. .,LULI, CNRS, CEA, Sorbonne Université, École Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
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