High Power Laser Science and Engineering, Volume. 9, Issue 2, 02000e27(2021)
First radiative shock experiments on the SG-II laser
Fig. 1. (a) Schematic diagram of the experimental setup for a single shock target on the SG-II laser, with a similar configuration used for counter-propagating shocks. (b), (c) Cross-sections of single and counter-propagating shock targets.
Fig. 2. (a)–(c) View of the piston: (a) X-ray emission from the laser–piston interaction from a time-integrated pinhole camera diagnostic; (b) microscope image of the 1 mm diameter shock aperture and CH–Br/CH pistons; (c) lineout of (a) and Gaussian fit to estimate the laser spot size. (d), (e) Target view: field of view of the X-ray backlighting diagnostic of a single shock target and example of raw X-ray image result, respectively.
Fig. 3. XRBL results for (a) single and (b) colliding shocks. Artefacts from hard X-ray background (see Figure 2(e)) have been removed for visual purposes. For colliding shocks, the position is taken relative to the left-hand side piston and the vertical arrows mark the approximate position of the shock fronts in each frame. The arrows suggest that the shocks interpenetrate; however, in reality the experiments are in a collisional regime where no interpenetration occurs.
Fig. 4. Shock front position as a function of time measured from the results in
Fig. 5. Numerical simulations of the experiments with the 2D radiation hydrodynamics code ARWEN at 20 ns. (a) Maps of mass density and temperature. (b) Axial lineouts (at a radius of 0 mm) of mass density, temperature, materials and ionization from (a).
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Francisco Suzuki-Vidal, Thomas Clayson, Chantal Stehlé, Uddhab Chaulagain, Jack W. D. Halliday, Mingying Sun, Lei Ren, Ning Kang, Huiya Liu, Baoqiang Zhu, Jianqiang Zhu, Carolina De Almeida Rossi, Teodora Mihailescu, Pedro Velarde, Manuel Cotelo, John M. Foster, Colin N. Danson, Christopher Spindloe, Jeremy P. Chittenden, Carolyn Kuranz. First radiative shock experiments on the SG-II laser[J]. High Power Laser Science and Engineering, 2021, 9(2): 02000e27
Category: Research Articles
Received: Aug. 19, 2020
Accepted: Mar. 25, 2021
Posted: Mar. 26, 2021
Published Online: Jun. 10, 2021
The Author Email: Francisco Suzuki-Vidal (f.suzuki@imperial.ac.uk)