Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
Northwest Institute of Nuclear Technology, PO Box 69 26, Xi'an 710024, China;
Northwest Institute of Nuclear Technology, PO Box 69 26, Xi'an 710024, China;
Northwest Institute of Nuclear Technology, PO Box 69 26, Xi'an 710024, China;
Northwest Institute of Nuclear Technology, PO Box 69 26, Xi'an 710024, China;
Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
time-resolved measurement; atomic emission enhancement; dual-pulse LIBS;