Photothermal decomposition of HNS at 532 nm |
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| Authors: | Min Shui Yi Sun Zongqing Zhao Kemei Cheng Ying Xiong Yinzhong Wu Wei Fan Jinqing Yu Yonghong Yan Zuhua Yang Yuqiu Gu Fachun Zhong Tao Xu |
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| Affiliation: | 1. Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, PR China;2. Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, PR China |
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| Abstract: | The photodecomposition of solid 2,2′,4,4′,6,6′-hexanitrostillbene (HNS) at 532 nm, induced by a 10-nanosecond (ns) laser, is investigated by an elaborately designed in situ X-ray photoelectron spectroscopy (I-XPS) experiment and steady-state Fourier transform IR (FTIR) spectroscopies. Numerical integration of the two-dimensional heat conduction equation indicates that the irradiated sample volume is effectively heated and photothermal decomposition takes place. Agreement of results between the I-XPS and FTIR suggests that the nitro-nitrite (NO2-ONO) isomerization is a main decomposition pathway for HNS. |
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| Keywords: | Heat conduction equation Photothermal decomposition Isomerization |
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