基于智能算法的CR39径迹刻蚀过程模拟
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摘要
CR39可以用于激光等离子物理实验中的离子探测,并给出离子数目、种类和能量信息。通过采用唯象模型,利用离子在CR39中径迹形成的阻止本领动力学方程以及粒子群智能算法对径迹形成的过程进行了数值化模拟,研究了CR39中离子径迹在刻蚀过程中的演化过程,获得了入射离子能量和径迹直径、深度的对应关系,并且发现当离子射程与刻蚀深度相等时,径迹深度最大,给出了利用总刻蚀时间计算最大径迹深度对应的临界能量的公式。
CR39 detector can be used to detect the ions in laser-plasma physics experiments and to obtain information about the number,kind and energy of incident ions.Using phenomenological model,we numerically simulated the formation process of ion track in CR39 using energy loss dynamics equation and particle swarm optimization(PSO)algorithm thus studied the revolution of the ion track in CR39 during the etching process.The corresponding relationship between ion energy and track diameter and depth was obtained.It is found that when the ion range was equal to the etching depth in CR39,the track depth was the largest.The equation of the critical energy with which the track is the deepest and determined by the etching time was given.
CR39 detector can be used to detect the ions in laser-plasma physics experiments and to obtain information about the number,kind and energy of incident ions.Using phenomenological model,we numerically simulated the formation process of ion track in CR39 using energy loss dynamics equation and particle swarm optimization(PSO)algorithm thus studied the revolution of the ion track in CR39 during the etching process.The corresponding relationship between ion energy and track diameter and depth was obtained.It is found that when the ion range was equal to the etching depth in CR39,the track depth was the largest.The equation of the critical energy with which the track is the deepest and determined by the etching time was given.
引文
[1]Wilks S C,Langdon A B,Cowan T E,et al.Energetic proton generation in ultra-intense laser-solid interactions[J].Phys Plasmas,2000,8(2):542-549.
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[3]Park H S,Hurricane O A,Callahan D A,et al.High-adiabat high-foot inertial confinement fusion implosion experiments on the National Ignition Facility[J].Phys Rev Lett,2014,112:055001.
[4]翟鹏济,唐孝威,王龙,等.CR-39核径迹探测器及其在核科学等研究领域中的应用[J].物理,2000,29(7):397-400.(Zhai Pengji,Tang Xiaowei,Wang Long,et al.CR-39plastic nuclear track detector and its application in nuclear science.Physics,2000,29(7):397-400)
[5]王兴功,骆亿生,张红,等.CR-39固体核径迹探测器用于中子测量化学蚀刻参数的优化[J].核技术,2005,28(4):319-323.(Wang Xinggong,Luo Yisheng,Zhang Hong,et al.Optimum condition of chemical etching of CR-39solid state nuclear track detector for neutron measurement.Nuclear Techniques,2005,28(4):319-323)
[6]Li C K,Petrasso R.Stopping of directed energetic electrons in high-temperature hydrogenic plasmas[J].Physical Review E,2004,70:067401.
[7]Seguin F H,Fremje J A,Li C K,et al.Spectrometry of charged particles from inertial-confinement-fusion plasmas[J].Review of Scientific Instruments,2003,74(2):975-995.
[8]Rygg J R,Seguin F H,Li C K,et al.Proton radiography of inertial fusion implosions[J].Science,2008,319(5867):1223-1225.
[9]伍波,董克攻,吴玉迟,等.利用CR39上的径迹鉴别激光加速离子产物[J].强激光与粒子束,2013,25(2):381-384.(Wu Bo,Dong Kegong,Wu Yuchi,et al.Identification of ion products produced from laser acceleration experiments using tracks in CR39.High Power Laser and Particle Beams,2013,25(2):381-384)
[10]李波均,杨建伦,彭太平,等.CR39探测器对5种能量α粒子的响应[J].核电子学与探测技术,2010,30(9):1164-1167.(Li Bojun,Yang Jianlun,Peng Taiping,et al.CR39detector response for alpha irradiation of five energy.Nuclear Electronics&Detection Technology,2010,30(9):1164-1167)
[11]段晓礁,谭志新,兰小飞,等.用20~1020keV单能质子刻度CR-39固体核径迹探测器[J].物理学报,2010,59(5):3147-3153.(Duan Xiaoqiao,Tan Zhixin,Lan Xiaofei,et al.Calibration of solid state nuclear track detector CR39with monoenergetic protons.Acta Physica Sinica,2010,59(5):3147-3153)
[12]方美华,魏志勇,黄三玻,等.纳米尺度上CR-39径迹蚀刻动力学研究[J].核科学与工程,2011,31(3):263-269.(Fang Meihua,Wei Zhiyong,Huang Sanbo,et al.Chinese Journal of Nuclear Science and Engineering,2011,31(3):263-269)
[13]Kodaira S,Yasuda N,Konishi T,et al.Calibration of CR-39with atomic force microscope for the measurement of short range tracks from proton-induced target fragmentation reactions[J].Radiation Measurements,2013,50:232-236.
[14]Nikezic D,Yu K N.Formation and growth of tracks in nuclear track materials[J].Materials Science&Engineering:R:Reports,2004,46:51-123.
[15]Hicks D G.Charged-particle spectroscopy:A new window on inertial confinement fusion[D].Cambridge:Massachusetts Institute of Technology,1999:103-114.
[2]Mora P.Plasma expansion into a vacuum[J].Phys Rev Lett,2003,90:185002.
[3]Park H S,Hurricane O A,Callahan D A,et al.High-adiabat high-foot inertial confinement fusion implosion experiments on the National Ignition Facility[J].Phys Rev Lett,2014,112:055001.
[4]翟鹏济,唐孝威,王龙,等.CR-39核径迹探测器及其在核科学等研究领域中的应用[J].物理,2000,29(7):397-400.(Zhai Pengji,Tang Xiaowei,Wang Long,et al.CR-39plastic nuclear track detector and its application in nuclear science.Physics,2000,29(7):397-400)
[5]王兴功,骆亿生,张红,等.CR-39固体核径迹探测器用于中子测量化学蚀刻参数的优化[J].核技术,2005,28(4):319-323.(Wang Xinggong,Luo Yisheng,Zhang Hong,et al.Optimum condition of chemical etching of CR-39solid state nuclear track detector for neutron measurement.Nuclear Techniques,2005,28(4):319-323)
[6]Li C K,Petrasso R.Stopping of directed energetic electrons in high-temperature hydrogenic plasmas[J].Physical Review E,2004,70:067401.
[7]Seguin F H,Fremje J A,Li C K,et al.Spectrometry of charged particles from inertial-confinement-fusion plasmas[J].Review of Scientific Instruments,2003,74(2):975-995.
[8]Rygg J R,Seguin F H,Li C K,et al.Proton radiography of inertial fusion implosions[J].Science,2008,319(5867):1223-1225.
[9]伍波,董克攻,吴玉迟,等.利用CR39上的径迹鉴别激光加速离子产物[J].强激光与粒子束,2013,25(2):381-384.(Wu Bo,Dong Kegong,Wu Yuchi,et al.Identification of ion products produced from laser acceleration experiments using tracks in CR39.High Power Laser and Particle Beams,2013,25(2):381-384)
[10]李波均,杨建伦,彭太平,等.CR39探测器对5种能量α粒子的响应[J].核电子学与探测技术,2010,30(9):1164-1167.(Li Bojun,Yang Jianlun,Peng Taiping,et al.CR39detector response for alpha irradiation of five energy.Nuclear Electronics&Detection Technology,2010,30(9):1164-1167)
[11]段晓礁,谭志新,兰小飞,等.用20~1020keV单能质子刻度CR-39固体核径迹探测器[J].物理学报,2010,59(5):3147-3153.(Duan Xiaoqiao,Tan Zhixin,Lan Xiaofei,et al.Calibration of solid state nuclear track detector CR39with monoenergetic protons.Acta Physica Sinica,2010,59(5):3147-3153)
[12]方美华,魏志勇,黄三玻,等.纳米尺度上CR-39径迹蚀刻动力学研究[J].核科学与工程,2011,31(3):263-269.(Fang Meihua,Wei Zhiyong,Huang Sanbo,et al.Chinese Journal of Nuclear Science and Engineering,2011,31(3):263-269)
[13]Kodaira S,Yasuda N,Konishi T,et al.Calibration of CR-39with atomic force microscope for the measurement of short range tracks from proton-induced target fragmentation reactions[J].Radiation Measurements,2013,50:232-236.
[14]Nikezic D,Yu K N.Formation and growth of tracks in nuclear track materials[J].Materials Science&Engineering:R:Reports,2004,46:51-123.
[15]Hicks D G.Charged-particle spectroscopy:A new window on inertial confinement fusion[D].Cambridge:Massachusetts Institute of Technology,1999:103-114.