E. Brambrink1、2、*, S. Baton1、2, M. Koenig1、2、3, R. Yurchak1、2, N. Bidaut1、2, B. Albertazzi1、2, J. E. Cross4, G. Gregori4, A. Rigby4, E. Falize5, A. Pelka6, F. Kroll6, S. Pikuz7, Y. Sakawa8, N. Ozaki9, C. Kuranz10, M. Manuel10, C. Li11, P. Tzeferacos12, and D. Lamb12
Author Affiliations
1LULI - CNRS, Ecole Polytechnique, CEA : Universit′e Paris-Saclay2UPMC Univ Paris 06 : Sorbonne Universit′es - F-91128 Palaiseau cedex, France3Institute for Academic Initiatives, Osaka U., Suita, Osaka 565-0871, Japan4Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK5CEA-DAM-DIF, F-91297 Arpajon, France6HZDR, Bautzner Landstrae 400, 01328 Dresden, Germany7JIHT-RAS, 13-2 Izhorskaya st., Moscow, 125412, Russia8Institute of Laser Engineering, Osaka U., Suita, Osaka 565-0871, Japan9Graduate School of Engineering, Osaka U., Suita, Osaka 565-0871, Japan10Department of Energy Engineering Science, Faculty of Engineering Sciences, Kyushu University, Japan11Plasma Science and Fusion Center, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA12Flash Center for Computational Science, University of Chicago, IL 60637, USAshow less
DOI: 10.1017/hpl.2016.31
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E. Brambrink, S. Baton, M. Koenig, R. Yurchak, N. Bidaut, B. Albertazzi, J. E. Cross, G. Gregori, A. Rigby, E. Falize, A. Pelka, F. Kroll, S. Pikuz, Y. Sakawa, N. Ozaki, C. Kuranz, M. Manuel, C. Li, P. Tzeferacos, D. Lamb. Short-pulse laser-driven x-ray radiography[J]. High Power Laser Science and Engineering, 2016, 4(3): 03000e30
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Fig. 1. Radiography setup with imaging plate, target holder and laser beams. On the right a magnification of the target holder with x-ray source and radiography sample.
Fig. 2. Raw data of the radiography. The projected object is a 400 lpi gold grid. In addition, there are step targets of plastic and aluminum to estimate the dynamic resolution.
Fig. 3. V spectrum in function of the laser wavelength. The He-like lines are reduced compared to the $K_{\unicode[STIX]{x1D6FC}}$ line.
Fig. 4. Signal profile through the grid region, showing the unperturbed signal, the edge of the grid and the oscillations of the grid. Note the small variations of the signal over the detector.
Fig. 5. X-ray radiograph at 5.1 keV (V backlighter) taken 75 ns after the main drive beam.
| | |
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| Signal | Background | Signal | Background |
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V | 11.7 | 2.7 | 58 | 4 | Cu | 3.7 | 0.9 | 11 | 0.6 | Mo | 9 | 1.5 | 20 | 2.2 |
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Table 1. Comparison of x-ray signals from different materials and for two laser wavelengths. The background is measured behind the edge of the gold grid.