首页|Simulation of nuclear isomer production in laser-induced plasma
Simulation of nuclear isomer production in laser-induced plasma
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Nuclear isomers play essential roles in various fields,including stellar nucleosynthesis,nuclear clocks,nuclear batteries,clean nuclear energy,and y-ray lasers.Recent technological advances in high-intensity lasers have made it possible to excite or de-excite nuclear isomers using table-top laser equipment.Utilizing a particle-in-cell code,we investigate the interaction of a laser with a nanowire array and calculate the production rates of the 73mGe(E1=13.3 keV)and 107mAg(E1=93.1 keV)isomers.For 73m1Ge,production by Coulomb excitation is found to contribute a peak efficiency of 1.0 × 1019 particles s-1 J-1,while nuclear excitation by electron capture(NEEC)contributes a peak of 1.65 × 1011 particles s-1 J-1.These results indicate a high isomeric production ratio,as well as demonstrating the potential for confirming the existence of NEEC,a long-expected but so far experimentally unobserved fundamental process.
Zhiguo Ma、Yumiao Wang、Yi Yang、Youjing Wang、Kai Zhao、Yixin Li、Changbo Fu、Wanbing He、Yugang Ma
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Key Laboratory of Nuclear Physics and Ion-beam Application (MOE),Institute of Modern Physics,Fudan University,Shanghai 200433,China
National Key Research and Development Program of China(NKPs)National Natural Science Foundation of China(NSFC)CFFF platform of Fudan University
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