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				During the interaction of highly charged ions with solid target in the energy region near the Bohr velocity, the potential energy of the projectiles will be deposited on a nanometer-scale target surface within the time on the order of femtoseconds. That will lead the target atoms to be ionized into ions and the ions to be excited, resulting in the multiple ionization states and the complex configuration of energy levels. The de-excitation radiations of these levels cover the radiations from near-infrared spectral line to X-ray. Investigation of these spectral lines is significant for investigating the mechanism of such an interaction, diagnosing plasma and studying astrophysics. The experimental results show that the near-infrared spectral lines and X-ray spectra are produced by the 129Xeq+ (q = 21, 23, 25, 27) with kinetic energy of 1360 keV and 129Xe20+ with kinetic energy of 4 MeV impacting on the Cu surface, separately. The experiment is carried out in the National Laboratory of Heavy Ion Research Facility in Lanzhou, HIRFL. The beam intensity is on the order of nA. The highly charged ions capture the electrons of the Cu target and thus being neutralized in a femtosecond time. The energy of the highly charged ions is deposited on the target surface, and the target atoms are excited or ionized, resulting in the transition between complex configurations, such as the dipole forbidden transition (magnetic dipole and quadrupole transition) and magnetic dipole transition of the Cu22+. The infrared spectral lines of the atoms and ions from deexcitation radiation are measured. With the 4 MeV 129Xe20+ ions impacting on solid Cu surfsce, the X-rays are measured, such as, the magnetic dipole deexcitation radiation transition of Cu22+, the X-rays of the L1 edge transition and Lβ3 of the Cu I, Lη and Lβ3 X-rays of the Xe ions. The results show that during the neutrilization of highly charged Xe ions with lower energy above the Cu surface, the infrared lines are mainly from the deexcitation of the incident ions and the ionized or excited target atoms. The increasing trend of the the single ion fluorescence yield of the infrared spectral line is the same as that of the potential energy of the projectile. The characteristic L X-rays of the Xe atom are emitted by the second generation of hollow atoms formed below the surface.[1] Lemell C, Stöck J, Burgdörfer J, Betz G, Winter H P, Aumayr F 1998 Phys. Rev. Lett. 81 1965  Google Scholar Google Scholar[2] Woolsey N C, Hammel B A, Keane C J, Back C A, Moreno J C, Nash J K, Calisti A, Mosse C, R. Stamm, Talin B, Asfaw A, Klein L S, Lee R W 1998 Phys. Rev. E 57 4650  Google Scholar Google Scholar[3] Kim K Y, Taylor A J, Glownia J H, Rodriguez G 2008 Nat. Photonics 2 605  Google Scholar Google Scholar[4] Krasheninnikov A V, Nordlund K 2010 J. Appl. Phys. 107 071301  Google Scholar Google Scholar[5] Lake R E, Pomeroy J M, Grube H, Sosolik C E 2011 Phys. Rev. Lett. 107 063202  Google Scholar Google Scholar[6] 段斌, 吴泽清, 王建国 2009 中国科学 G 39 43  Google Scholar Google ScholarDuan B, Wu Z Q, Wang J G 2009 Sci. China G 39 43  Google Scholar Google Scholar[7] 段斌, 吴泽清, 王建国 2009 中国科学 G 39 241  Google Scholar Google ScholarDuan B, Wu Z Q, Wang J G 2009 Sci. China G 39 241  Google Scholar Google Scholar[8] Gruber E, Wilhelm R A, Pétuya R, Smejkal V, Kozubek R, Hierzenberger A, Bayer B C, Aldazabal I, Kazansky A K, Libisch F, Krasheninnikov A V, Schleberger M, Facsko S, Borisov A G, Arnau A, Aumayr F 2016 Nat. Commun. 7 13948  Google Scholar Google Scholar[9] Ferguson B, Zhang X C 2002 Nat. Mater. 1 26  Google Scholar Google Scholar[10] Hagstrum H D 1954 Phys. Rev. 96 336  Google Scholar Google Scholar[11] Datz S 1983 Phys. Scr. T 3 79  Google Scholar Google Scholar[12] Briand J P, de Billy L, Charles P, Essabaa S, Briand P, Desclaux J P, Geller R, Bliman S, Ristori C 1990 Phys. Rev. Lett. 65 1259  Google Scholar Google Scholar[13] Burgdörfer J, Lerner P, Meyer F W 1991 Phys. Rev. A 44 5674  Google Scholar Google Scholar[14] Köhrbrück R, Sommer K, Biersack J P, Neuhaus B J, Schippers S, Roncin P, Lecler D, Fremont F, Stolterfoht N 1992 Phys. Rev. A 45 4653  Google Scholar Google Scholar[15] Beiersdorfer P, Olson R E, Brown G V, Chen H, Harris C L, Neill P A, Schweikhard L, Utter S B, Widmann K 2000 Phys. Rev. Lett. 85 5090  Google Scholar Google Scholar[16] Morishita Y, Hutton R, Torii H A, Komaki K, Brage T, Ando K, Ishii K, Kanai Y, Masuda H, Sekiguchi M, Rosmej F B, Yamazaki Y 2004 Phys. Rev. A 70 012902  Google Scholar Google Scholar[17] 赵永涛, 张小安, 李福利, 肖国青, 詹文龙, 杨治虎 2003 物理学报 52 2768  Google Scholar Google ScholarZhao Y T, Zhang X A, Li F L, Xiao G Q, Zhan WL, Yang Z H 2003 Acta Phys. Sin. 52 2768  Google Scholar Google Scholar[18] Sporn M, Libiseller G, Neidhart T, Schmid M, Aumayr F, Winter H P, Varga P, 1997 Phys. Rev. Lett. 79 945  Google Scholar Google Scholar[19] 张小安, 杨治虎, 王党朝, 梅策香, 牛超英, 王伟, 戴斌, 肖国青 2009 物理学报 58 6920  Google Scholar Google ScholarZhang X A, Yang Z H, Wang D C, Mei C X, Niu C Y, Wang W, Dai B, Xiao G Q 2009 Acta Phys. Sin. 58 6920  Google Scholar Google Scholar[20] Wilhelm R A, Gruber E, Schwestka J, Kozubek Roland, Madeira T I, Marques J P, Kobus J, Krasheninnikov AV, Schleberger M, Aumayr F 2017 Phys. Rev. Lett. 119 103401  Google Scholar Google Scholar[21] Hurricane O A, Callahan D A, Casey D T, Celliers P M, Cerjan C, Dewald E L, Dittrich T R, Döppner T, Hinkel D E, Berzak Hopkins L F, Kline J L, Le Pape S, Ma 1T, MacPhee A G, Milovich J L, Pak A, Park H S, Patel P K, Remington B A, Salmonson J D, Springer P T, Tommasini R 2014 Nature 506 343  Google Scholar Google Scholar[22] Hollmann E M, Parks P B, Shiraki D, Alexander N, Eidietis N W, Lasnier C J, Moyer R A 2019 Phys. Rev. Lett. 122 065001  Google Scholar Google Scholar[23] Dasgupta A, Clark R W, Ouart N D, Giuliani J L 2014 Phys. Scr. 89 14008  Google Scholar Google Scholar[24] Träbert E, Grieser M, Hoffmann J, Krantz C, Repnow R, Wolf A 2012 Phys. Rev. A 85 042508  Google Scholar Google Scholar[25] Dasgupta A, Clark R W, Ouart N D, Giuliani J L, Thornhill W, Davis J, Jones B, Ampleford D J, Hansen S B, Coverdale CA 2012 High Energy Density Phys. 8 284  Google Scholar Google Scholar[26] Kawaguchi K, Sanechika N, Nishimura Y, Fujimori R, Oka T N, Hirahara Y, Jaman A I, Civiš S 2008 Chem. Phys. Lett. 463 38  Google Scholar Google Scholar[27] Hinnov E, Suckewer S, Cohen S, Sato K 1982 Phys. Rev. A 25 2293  Google Scholar Google Scholar[28] 李家明, 赵中新 1981 物理学报 30 105  Google Scholar Google ScholarLi J M, Zhao Z X 1981 Acta Phys. Sin. 30 105  Google Scholar Google Scholar[29] Han X Y, Gao X, Zeng D L, Jin R, Yan J, Li J M 2014 Phys. Rev. A 89 042514  Google Scholar Google Scholar[30] Wu Z W, Dong C Z, Jiang J 2012 Phys. Rev. A 86 022712  Google Scholar Google Scholar[31] 腾华国, 王永昌 1988 西北师范大学学报 4 45  Google Scholar Google ScholarTeng H G, Wang Y C 1988 J. Northwest Nor. Univ. 4 45  Google Scholar Google Scholar[32] Wang K, Guo X L, Liu H T, Li D F, Long F Y, Han X Y, Duan B, Li J G, Huang M, Wang Y S 2015 Astrophys. J. Suppl. 218 16  Google Scholar Google Scholar[33] Wang W J 1993 Nucl. Instrum. Methods B 73 159  Google Scholar Google Scholar[34] Bastiaansen J, Philipsen V, Vervaecke F, Vandeweert E, Lievens P, Silverans R E 2003 Phys. Rev. B 68 073409  Google Scholar Google Scholar[35] Kramida A, Ralchenko Yu, Reader J, NIST ASD Team https://www.nist.gov/pml/atomic-spectra-database [2019-02-19] [36] Atomic and Molecular Datebase http://www.camdb.ac.cn/ nsdc/ [2019-03-19] [37] Deslattes R D, Kessler Jr E G, Indelicato P, de Billy L, Lindroth E, Anton J 2003 Rev. Mod. Phys. 75 35  Google Scholar Google Scholar[38] 徐克尊 2000 高等原子分子物理 (北京: 科学出版社) 第117−119页 Xu K Z 2000 Advanced Atomic Molecular Physics (Beijing: Science Press) pp117−119 (in Chinese) [39] 曾谨言 2000 量子力学(卷Ⅱ)第三版 (北京: 科学出版社) 第660−661页 Zeng J Y 2000 Quantum Mechanics (Vol.Ⅱ 3th Ed) (Beijing: Science Press) pp660−661 (in Chinese) [40] Nordlander P, Tully J C 1990 Phys. Rev. B 42 5564  Google Scholar Google Scholar[41] Briand J P, Giardino G, Borsoni G, Froment M, Eddrief M, Sébenne C, Bardin S, Schneider D, Jin J, Khemliche H, Xie Z, Prior M 1996 Phys. Rev. A 54 4136  Google Scholar Google Scholar[42] Clark M W, Schneider D, Dewitt D, McDonald J W, Bruch R, Safronova U I, Tolstikhina I Y, Schuch R 1993 Phys. Rev. A 47 3983  Google Scholar Google Scholar[43] Zhou X M, Zhao Y T, Xiao G Q, Cheng R, Wang Y Y, Wang X, Sun Y B 2013 Nucl. Instrum. Methods B 299 61  Google Scholar Google Scholar[44] Ren J R, Zhao Y T, Zhou X M, Wang X, Lei Y, Xu G, Cheng R, Wang Y Y, Liu S D, Sun Y B, Xiao G Q 2015 Phys. Rev. A 92 062710  Google Scholar Google Scholar
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图 2 Si漂移探测器探测效率随X射线能量变化的关系图(在能量0.6−1.8 keV之间用5次多项式拟合, 能量1.8−4.0 keV用4次多项式拟合, 4.0−10 keV用3次多项式拟合) Figure 2. Efficiency values of the Silicon Drift Detector. The curve is a fifth polynomial in the 0.6−1.8 keV energy interval, a fourth polynomial in the 1.8−4.0 keV energy interval and a third polynomial in the 4.0–10 keV energy interval. 图 5 (a) 129Xeq+离子携带势能随电荷态q增加的趋势; (b)近红外光谱线的单粒子产额随电荷态q增加的趋势 Figure 5. (a) Potential energy of the 129Xeq+ ion vs. the charge q; (b) single ion fluorescence yield of the near-infrared spectral lines as a function of the projectile charge q where the near-infrared spectral lines are induced by 1360 keV 129Xeq+ (q = 21—27) ion impacting on a Cu surface. 表 1 129Xeq+入射Cu靶激发的红外光谱线 Table 1. Measured near-infrared spectral lines induced by 129Xeq+ ions on Cu surface Ion Observed 
 wavelength/nmReference 
 wavelength/nmUpper level Lower level Transition 
 typeConfiguration Term J Configuration Term J Xe I 949.99 ± 0.05 949.71[35] $5{\rm{p}}^5(2{\rm{P}}^\circ_{3/2})4{\rm{f}}$ 2[3/2] 2 $5{\rm{p} }^5(2{\rm{P} }^\circ_{3/2})5{\rm{d} }$ 2[3/2]° 2 E1 Xe I 1240.91 ± 0.01 1240.91[35] $5{\rm{p}}^5(2{\rm{P}}^\circ_{1/2})6{\rm{p}}$ 2[3/2] 1 $5{\rm{p} }^5(2{\rm{P} }^\circ_{3/2})5{\rm{d} }$ 2[3/2]° 2 E1 Xe I 1435.46 ± 0.01 1435.46[35] $5{\rm{p}}^5(2{\rm{P}}^\circ_{3/2})8{\rm{p}}$ 2[1/2] 1 $5{\rm{p} }^5(2{\rm{P} }^\circ_{3/2})7{\rm{s} } $ 2[3/2]° 2 E1 Cu I 1665.00 ± 0.02 1664.99[35] 3d105d 2D 3/2 3d105p 2P° 1/2 E1 Cu II 829.78 ± 0.03 829.85[35] 3d9(2D5/2)7d 2[2/5] 2 3d8(3F)4s4p(1P°) 3Fo 2 E1 Cu II 900.14 ± 0.02 900.14[35] 3d9(2D3/2)8s 2[3/2] 2 3d9(2D3/2)6p 2[3/2]° 1 E1 Cu II 1079.74 ± 0.05 1079.79[35] 3d9(2D5/2)5f 2[7/2]° 4 3d9(2D5/2)5d 2[9/2] 4 E1 Cu XXIII 1140.06 ± 0.01 1140.0[36] 2s22p2(3P)4p 2Po 3/2 2s22p2(3P)4p 4So 3/2 M1, E2 Cu XXIII 1216.44 ± 0.04 1216.5[36] 2p4(3P)3d 4D 5/2 2p4(1D)3p 2Fo 5/2 E1 Cu XXIII 1345.36 ± 0.06 1345.5[36] 2s22p2(3P)4f 2Fo 5/2 2s22p2(1D)4p 2Fo 5/2 M1, E2 Cu XXIII 1374.79 ± 0.07 1374.0[36] 2s2p3(1P)3d 2Do 5/2 2p4(3P)3s 4P 5/2 E1 Cu XXIII 1420.31 ± 0.06 1420.1[36] 2s22p2(3P)4f 4Do 1/2 2s22p2(1D)4p 2Do 1/2 M1, E2 
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[1] Lemell C, Stöck J, Burgdörfer J, Betz G, Winter H P, Aumayr F 1998 Phys. Rev. Lett. 81 1965  Google Scholar Google Scholar[2] Woolsey N C, Hammel B A, Keane C J, Back C A, Moreno J C, Nash J K, Calisti A, Mosse C, R. Stamm, Talin B, Asfaw A, Klein L S, Lee R W 1998 Phys. Rev. E 57 4650  Google Scholar Google Scholar[3] Kim K Y, Taylor A J, Glownia J H, Rodriguez G 2008 Nat. Photonics 2 605  Google Scholar Google Scholar[4] Krasheninnikov A V, Nordlund K 2010 J. Appl. Phys. 107 071301  Google Scholar Google Scholar[5] Lake R E, Pomeroy J M, Grube H, Sosolik C E 2011 Phys. Rev. Lett. 107 063202  Google Scholar Google Scholar[6] 段斌, 吴泽清, 王建国 2009 中国科学 G 39 43  Google Scholar Google ScholarDuan B, Wu Z Q, Wang J G 2009 Sci. China G 39 43  Google Scholar Google Scholar[7] 段斌, 吴泽清, 王建国 2009 中国科学 G 39 241  Google Scholar Google ScholarDuan B, Wu Z Q, Wang J G 2009 Sci. China G 39 241  Google Scholar Google Scholar[8] Gruber E, Wilhelm R A, Pétuya R, Smejkal V, Kozubek R, Hierzenberger A, Bayer B C, Aldazabal I, Kazansky A K, Libisch F, Krasheninnikov A V, Schleberger M, Facsko S, Borisov A G, Arnau A, Aumayr F 2016 Nat. Commun. 7 13948  Google Scholar Google Scholar[9] Ferguson B, Zhang X C 2002 Nat. Mater. 1 26  Google Scholar Google Scholar[10] Hagstrum H D 1954 Phys. Rev. 96 336  Google Scholar Google Scholar[11] Datz S 1983 Phys. Scr. T 3 79  Google Scholar Google Scholar[12] Briand J P, de Billy L, Charles P, Essabaa S, Briand P, Desclaux J P, Geller R, Bliman S, Ristori C 1990 Phys. Rev. Lett. 65 1259  Google Scholar Google Scholar[13] Burgdörfer J, Lerner P, Meyer F W 1991 Phys. Rev. A 44 5674  Google Scholar Google Scholar[14] Köhrbrück R, Sommer K, Biersack J P, Neuhaus B J, Schippers S, Roncin P, Lecler D, Fremont F, Stolterfoht N 1992 Phys. Rev. A 45 4653  Google Scholar Google Scholar[15] Beiersdorfer P, Olson R E, Brown G V, Chen H, Harris C L, Neill P A, Schweikhard L, Utter S B, Widmann K 2000 Phys. Rev. Lett. 85 5090  Google Scholar Google Scholar[16] Morishita Y, Hutton R, Torii H A, Komaki K, Brage T, Ando K, Ishii K, Kanai Y, Masuda H, Sekiguchi M, Rosmej F B, Yamazaki Y 2004 Phys. Rev. A 70 012902  Google Scholar Google Scholar[17] 赵永涛, 张小安, 李福利, 肖国青, 詹文龙, 杨治虎 2003 物理学报 52 2768  Google Scholar Google ScholarZhao Y T, Zhang X A, Li F L, Xiao G Q, Zhan WL, Yang Z H 2003 Acta Phys. Sin. 52 2768  Google Scholar Google Scholar[18] Sporn M, Libiseller G, Neidhart T, Schmid M, Aumayr F, Winter H P, Varga P, 1997 Phys. Rev. Lett. 79 945  Google Scholar Google Scholar[19] 张小安, 杨治虎, 王党朝, 梅策香, 牛超英, 王伟, 戴斌, 肖国青 2009 物理学报 58 6920  Google Scholar Google ScholarZhang X A, Yang Z H, Wang D C, Mei C X, Niu C Y, Wang W, Dai B, Xiao G Q 2009 Acta Phys. Sin. 58 6920  Google Scholar Google Scholar[20] Wilhelm R A, Gruber E, Schwestka J, Kozubek Roland, Madeira T I, Marques J P, Kobus J, Krasheninnikov AV, Schleberger M, Aumayr F 2017 Phys. Rev. Lett. 119 103401  Google Scholar Google Scholar[21] Hurricane O A, Callahan D A, Casey D T, Celliers P M, Cerjan C, Dewald E L, Dittrich T R, Döppner T, Hinkel D E, Berzak Hopkins L F, Kline J L, Le Pape S, Ma 1T, MacPhee A G, Milovich J L, Pak A, Park H S, Patel P K, Remington B A, Salmonson J D, Springer P T, Tommasini R 2014 Nature 506 343  Google Scholar Google Scholar[22] Hollmann E M, Parks P B, Shiraki D, Alexander N, Eidietis N W, Lasnier C J, Moyer R A 2019 Phys. Rev. Lett. 122 065001  Google Scholar Google Scholar[23] Dasgupta A, Clark R W, Ouart N D, Giuliani J L 2014 Phys. Scr. 89 14008  Google Scholar Google Scholar[24] Träbert E, Grieser M, Hoffmann J, Krantz C, Repnow R, Wolf A 2012 Phys. Rev. A 85 042508  Google Scholar Google Scholar[25] Dasgupta A, Clark R W, Ouart N D, Giuliani J L, Thornhill W, Davis J, Jones B, Ampleford D J, Hansen S B, Coverdale CA 2012 High Energy Density Phys. 8 284  Google Scholar Google Scholar[26] Kawaguchi K, Sanechika N, Nishimura Y, Fujimori R, Oka T N, Hirahara Y, Jaman A I, Civiš S 2008 Chem. Phys. Lett. 463 38  Google Scholar Google Scholar[27] Hinnov E, Suckewer S, Cohen S, Sato K 1982 Phys. Rev. A 25 2293  Google Scholar Google Scholar[28] 李家明, 赵中新 1981 物理学报 30 105  Google Scholar Google ScholarLi J M, Zhao Z X 1981 Acta Phys. Sin. 30 105  Google Scholar Google Scholar[29] Han X Y, Gao X, Zeng D L, Jin R, Yan J, Li J M 2014 Phys. Rev. A 89 042514  Google Scholar Google Scholar[30] Wu Z W, Dong C Z, Jiang J 2012 Phys. Rev. A 86 022712  Google Scholar Google Scholar[31] 腾华国, 王永昌 1988 西北师范大学学报 4 45  Google Scholar Google ScholarTeng H G, Wang Y C 1988 J. Northwest Nor. Univ. 4 45  Google Scholar Google Scholar[32] Wang K, Guo X L, Liu H T, Li D F, Long F Y, Han X Y, Duan B, Li J G, Huang M, Wang Y S 2015 Astrophys. J. Suppl. 218 16  Google Scholar Google Scholar[33] Wang W J 1993 Nucl. Instrum. Methods B 73 159  Google Scholar Google Scholar[34] Bastiaansen J, Philipsen V, Vervaecke F, Vandeweert E, Lievens P, Silverans R E 2003 Phys. Rev. B 68 073409  Google Scholar Google Scholar[35] Kramida A, Ralchenko Yu, Reader J, NIST ASD Team https://www.nist.gov/pml/atomic-spectra-database [2019-02-19] [36] Atomic and Molecular Datebase http://www.camdb.ac.cn/ nsdc/ [2019-03-19] [37] Deslattes R D, Kessler Jr E G, Indelicato P, de Billy L, Lindroth E, Anton J 2003 Rev. Mod. Phys. 75 35  Google Scholar Google Scholar[38] 徐克尊 2000 高等原子分子物理 (北京: 科学出版社) 第117−119页 Xu K Z 2000 Advanced Atomic Molecular Physics (Beijing: Science Press) pp117−119 (in Chinese) [39] 曾谨言 2000 量子力学(卷Ⅱ)第三版 (北京: 科学出版社) 第660−661页 Zeng J Y 2000 Quantum Mechanics (Vol.Ⅱ 3th Ed) (Beijing: Science Press) pp660−661 (in Chinese) [40] Nordlander P, Tully J C 1990 Phys. Rev. B 42 5564  Google Scholar Google Scholar[41] Briand J P, Giardino G, Borsoni G, Froment M, Eddrief M, Sébenne C, Bardin S, Schneider D, Jin J, Khemliche H, Xie Z, Prior M 1996 Phys. Rev. A 54 4136  Google Scholar Google Scholar[42] Clark M W, Schneider D, Dewitt D, McDonald J W, Bruch R, Safronova U I, Tolstikhina I Y, Schuch R 1993 Phys. Rev. A 47 3983  Google Scholar Google Scholar[43] Zhou X M, Zhao Y T, Xiao G Q, Cheng R, Wang Y Y, Wang X, Sun Y B 2013 Nucl. Instrum. Methods B 299 61  Google Scholar Google Scholar[44] Ren J R, Zhao Y T, Zhou X M, Wang X, Lei Y, Xu G, Cheng R, Wang Y Y, Liu S D, Sun Y B, Xiao G Q 2015 Phys. Rev. A 92 062710  Google Scholar Google Scholar
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