首页|Measurement of 2p-3d absorption in a hot molybdenum plasma
Measurement of 2p-3d absorption in a hot molybdenum plasma
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国家科技期刊平台
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We present measurements of the 2p-3d transition opacity of a hot molybdenum-scandium sample with nearly half-vacant molybdenum M-shell configurations.A plastic-tamped molybdenum-scandium foil sample is radiatively heated to high temperature in a compact D-shaped gold Hohlraum driven by～30 kJ laser energy at the SG-100 kJ laser facility.X rays transmitted through the molybdenum and scandium plasmas are diffracted by crystals and finally recorded by image plates.The electron temperatures in the sample in particular spatial and temporal zones are determined by the K-shell absorption of the scandium plasma.A combination of the IRAD3D view factor code and the MULTI hydrodynamic code is used to simulate the spatial distribution and temporal behavior of the sample temperature and density.The inferred temperature in the molybdenum plasma reaches a average of 138±11 eV.A detailed configuration-accounting calculation of the n=2-3 transition absorption of the molybdenum plasma is compared with experimental measurements and quite good agreement is found.The present measurements provide an opportunity to test opacity models for complicated M-shell configurations.
Shanghai EBIT Laboratory,and Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE),Institute of Modern Physics,Fudan University,Shanghai 200433,China
Laser Fusion Research Center,China Academy of Engineering Physics,Mianyang 621900,China
Institute of Applied Physics and Computational Mathematics,Beijing 100088,China
National Nature Science Foundation of ChinaNational Nature Science Foundation of ChinaNational Nature Science Foundation of ChinaNational Nature Science Foundation of ChinaNational Nature Science Foundation of ChinaPresidential Foundation of the China Academy of Engineering PhysicsCAEP FoundationScience Challenge ProjectScience Challenge ProjectNational Key R&D Program of China
国家科技期刊平台
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