First radiative shock experiments on the SG-II laser
We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-II (SG-II) laser at the Shanghai Institute of Optics and Fine Mechanics in China. Laser-heating of a two-layer CH/CH–Br foil drives a $\sim 40$ km/s shock inside a gas cell filled...
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| Veröffentlicht in: | High power laser science and engineering 2021, Vol.9, Article e27 |
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| creator | Suzuki-Vidal, Francisco Clayson, Thomas Stehlé, Chantal Chaulagain, Uddhab Halliday, Jack W. D. Sun, Mingying Ren, Lei Kang, Ning Liu, Huiya Zhu, Baoqiang Zhu, Jianqiang De Almeida Rossi, Carolina Mihailescu, Teodora Velarde, Pedro Cotelo, Manuel Foster, John M. Danson, Colin N. Spindloe, Christopher Chittenden, Jeremy P. Kuranz, Carolyn |
| description | We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-II (SG-II) laser at the Shanghai Institute of Optics and Fine Mechanics in China. Laser-heating of a two-layer CH/CH–Br foil drives a $\sim 40$ km/s shock inside a gas cell filled with argon at an initial pressure of 1 bar. The use of gas-cell targets with large (several millimetres) lateral and axial extent allows the shock to propagate freely without any wall interactions, and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved, point-projection X-ray backlighting ($\sim 20$ μm source size, 4.3 keV photon energy). Single shocks were imaged up to 100 ns after the onset of the laser drive, allowing to probe the growth of spatial nonuniformities in the shock apex. These results are compared with experiments looking at counter-propagating shocks, showing a symmetric drive that leads to a collision and stagnation from $\sim 40$ ns onward. We present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN, which provides expected plasma parameters for the design of future experiments in this facility. |
| doi_str_mv | 10.1017/hpl.2021.17 |
| format | Article |
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D. ; Sun, Mingying ; Ren, Lei ; Kang, Ning ; Liu, Huiya ; Zhu, Baoqiang ; Zhu, Jianqiang ; De Almeida Rossi, Carolina ; Mihailescu, Teodora ; Velarde, Pedro ; Cotelo, Manuel ; Foster, John M. ; Danson, Colin N. ; Spindloe, Christopher ; Chittenden, Jeremy P. ; Kuranz, Carolyn</creator><creatorcontrib>Suzuki-Vidal, Francisco ; Clayson, Thomas ; Stehlé, Chantal ; Chaulagain, Uddhab ; Halliday, Jack W. D. ; Sun, Mingying ; Ren, Lei ; Kang, Ning ; Liu, Huiya ; Zhu, Baoqiang ; Zhu, Jianqiang ; De Almeida Rossi, Carolina ; Mihailescu, Teodora ; Velarde, Pedro ; Cotelo, Manuel ; Foster, John M. ; Danson, Colin N. ; Spindloe, Christopher ; Chittenden, Jeremy P. ; Kuranz, Carolyn</creatorcontrib><description>We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-II (SG-II) laser at the Shanghai Institute of Optics and Fine Mechanics in China. Laser-heating of a two-layer CH/CH–Br foil drives a $\sim 40$ km/s shock inside a gas cell filled with argon at an initial pressure of 1 bar. The use of gas-cell targets with large (several millimetres) lateral and axial extent allows the shock to propagate freely without any wall interactions, and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved, point-projection X-ray backlighting ($\sim 20$ μm source size, 4.3 keV photon energy). Single shocks were imaged up to 100 ns after the onset of the laser drive, allowing to probe the growth of spatial nonuniformities in the shock apex. These results are compared with experiments looking at counter-propagating shocks, showing a symmetric drive that leads to a collision and stagnation from $\sim 40$ ns onward. We present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN, which provides expected plasma parameters for the design of future experiments in this facility.</description><identifier>ISSN: 2095-4719</identifier><identifier>EISSN: 2052-3289</identifier><identifier>DOI: 10.1017/hpl.2021.17</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Argon ; Computational fluid dynamics ; Design ; Design parameters ; Energy ; Experiments ; Field of view ; Fluid flow ; Foils ; Gases ; Hydrodynamics ; Initial pressure ; Laser beam heating ; Lasers ; Radiation ; X-rays</subject><ispartof>High power laser science and engineering, 2021, Vol.9, Article e27</ispartof><rights>The Author(s), 2021. Published by Cambridge University Press in association with Chinese Laser Press</rights><rights>The Author(s), 2021. Published by Cambridge University Press in association with Chinese Laser Press. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). 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D.</creatorcontrib><creatorcontrib>Sun, Mingying</creatorcontrib><creatorcontrib>Ren, Lei</creatorcontrib><creatorcontrib>Kang, Ning</creatorcontrib><creatorcontrib>Liu, Huiya</creatorcontrib><creatorcontrib>Zhu, Baoqiang</creatorcontrib><creatorcontrib>Zhu, Jianqiang</creatorcontrib><creatorcontrib>De Almeida Rossi, Carolina</creatorcontrib><creatorcontrib>Mihailescu, Teodora</creatorcontrib><creatorcontrib>Velarde, Pedro</creatorcontrib><creatorcontrib>Cotelo, Manuel</creatorcontrib><creatorcontrib>Foster, John M.</creatorcontrib><creatorcontrib>Danson, Colin N.</creatorcontrib><creatorcontrib>Spindloe, Christopher</creatorcontrib><creatorcontrib>Chittenden, Jeremy P.</creatorcontrib><creatorcontrib>Kuranz, Carolyn</creatorcontrib><title>First radiative shock experiments on the SG-II laser</title><title>High power laser science and engineering</title><addtitle>High Pow Laser Sci Eng</addtitle><description>We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-II (SG-II) laser at the Shanghai Institute of Optics and Fine Mechanics in China. Laser-heating of a two-layer CH/CH–Br foil drives a $\sim 40$ km/s shock inside a gas cell filled with argon at an initial pressure of 1 bar. The use of gas-cell targets with large (several millimetres) lateral and axial extent allows the shock to propagate freely without any wall interactions, and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved, point-projection X-ray backlighting ($\sim 20$ μm source size, 4.3 keV photon energy). Single shocks were imaged up to 100 ns after the onset of the laser drive, allowing to probe the growth of spatial nonuniformities in the shock apex. These results are compared with experiments looking at counter-propagating shocks, showing a symmetric drive that leads to a collision and stagnation from $\sim 40$ ns onward. 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D.</au><au>Sun, Mingying</au><au>Ren, Lei</au><au>Kang, Ning</au><au>Liu, Huiya</au><au>Zhu, Baoqiang</au><au>Zhu, Jianqiang</au><au>De Almeida Rossi, Carolina</au><au>Mihailescu, Teodora</au><au>Velarde, Pedro</au><au>Cotelo, Manuel</au><au>Foster, John M.</au><au>Danson, Colin N.</au><au>Spindloe, Christopher</au><au>Chittenden, Jeremy P.</au><au>Kuranz, Carolyn</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First radiative shock experiments on the SG-II laser</atitle><jtitle>High power laser science and engineering</jtitle><addtitle>High Pow Laser Sci Eng</addtitle><date>2021</date><risdate>2021</risdate><volume>9</volume><artnum>e27</artnum><issn>2095-4719</issn><eissn>2052-3289</eissn><abstract>We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-II (SG-II) laser at the Shanghai Institute of Optics and Fine Mechanics in China. Laser-heating of a two-layer CH/CH–Br foil drives a $\sim 40$ km/s shock inside a gas cell filled with argon at an initial pressure of 1 bar. The use of gas-cell targets with large (several millimetres) lateral and axial extent allows the shock to propagate freely without any wall interactions, and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved, point-projection X-ray backlighting ($\sim 20$ μm source size, 4.3 keV photon energy). Single shocks were imaged up to 100 ns after the onset of the laser drive, allowing to probe the growth of spatial nonuniformities in the shock apex. These results are compared with experiments looking at counter-propagating shocks, showing a symmetric drive that leads to a collision and stagnation from $\sim 40$ ns onward. We present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN, which provides expected plasma parameters for the design of future experiments in this facility.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/hpl.2021.17</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Argon Computational fluid dynamics Design Design parameters Energy Experiments Field of view Fluid flow Foils Gases Hydrodynamics Initial pressure Laser beam heating Lasers Radiation X-rays |
| title | First radiative shock experiments on the SG-II laser |
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