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在能量为154 – 424 MeV/u的高能区域, 研究了C6+离子轰击W靶时激发W的L壳层X射线. 本文中, 由于L X射线发射时M、N等外壳层处于多空穴的状态, 观测到了相应谱线能量的蓝移, 以及分支Lı、 Lβ1, 3, 4、 Lβ2, 15与Lα1, 2 X射线相对强度比的增大. 另外, 利用优化的厚靶截面公式,并考虑多电离对X射线荧光产额的影响, 计算了L X射线的发射截面，并与PWBA、ECPSSR和BEA理论计算进行了对比. 分析表明, 在本实验能区内ECPSSR对PWBA的修正作用可以忽略,两者计算结果几乎相同且均大于实验截面; BEA估算整体上与实验结果符合较好.The L-shell X-ray emissions of tungsten has been investigated under the bombardment of C6+ ions in the high energy region of 154 - 424 MeV/u. Compared to the atomic data, the energy of the X-ray is enlarged, and the relative intensity ratios of Lı, Lβ1, 3, 4 and Lβ2, 15 to Lα1, 2 X-rays are enhanced. The L-subshell and the total X-ray production cross sections were calculated by a well corrected thick target formula and compared with the theoretical estimation of BEA, PWBA and ECPSSR. On the whole, the experimental cross sections are all smaller than the prediction of PWBA and ECPSSR, but in agreement roughly with that of BEA. It is indicated that the inner-shell ionization of W can be considered to be a binary process between the high energy C6+ ions acting as a point charge and the independent target electrons. With the L-shell ionization, the outer-shells are multiply ionized. The multi-ionization degree is regard to be almost constant in the present work. This results in the X-ray energy blue shift and the enhancement of the relative intensity ratios of Lı and Lβ to Lα X-ray. Using the atomic parameters corrected by multi-ionization, the X-ray production cross section can be estimated by the BEA model.
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Keywords:
- High energy heavy ions /
- Ion-atom collision /
- X-ray /
- Multiple ionization
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[1] Xu G, Barriga-Carrasco M D, Blazevic A, Borovkov B, Casas D, Cistakov K, Gavrilin R, Iberler M, Jacoby J, Loisch G, Morales R, Mäder R, Qin S -X, Rienecker T, Rosmej O, Savin S, Schönlein A, Weyrich K, Wiechula J, Wieser J, Xiao G Q, Zhao Y T 2017 Phys. Rev. Lett. 119 207801
[2] Breuer L, Meinerzhagen F, Herder M, Bender M, Severin D, Lerach J O, Wucher A 2016 J. Vac. Sci. Technol. B 34 03H130
[3] Czarnota M, Banaś D, Braziewicz J, Semaniak J, Pajek M, Jaskóła M, Korman A, Kretschmer W, Lapicki G, Mukoyama T 2009 Phys. Rev. A 79 032710
[4] Schmelmer O, Dollinger G, Datzmann G, Hauptner A, Körner H J, Maier-Komor P, Reichart P 2001 Nucl. Instr. and Meth. B 179 469
[5] Tapper U, Räisädnen J 2001 Nucl. Instr. and Meth. B 71 214
[6] Greenberg J S, Davis C K, Vincent P 2017 Phys. Rev. Lett. 30 473
[7] Kawata S 2021 Advances in Physics: X 6, 1873860
[8] Kawata S, Karino T, Ogoyski A I 2016 Matter Radiat. Extremes 1 89
[9] Hofmann I 2015 Rev. Accl. Sci. Tech. 08 37
[10] Back B B, Esbensen H, Jiang C L, Rehm K E 2014 Rev. Mod. Phys. 86 317
[11] Ciricosta O, Vinko S M, Chung H -K, Cho B -I, Brown C R D, Burian T, Chalupský J, Engelhorn K, Falcone R W, Graves C, Hájková V, Higginbotham A, Juha L, Krzywinski J, Lee H J, Messerschmidt M, Murphy C D, Ping Y, Rackstraw D S, Scherz A, Schlotter W, Toleikis S, Turner J J, Vysin L, Wang T, Wu B, Zastrau U, Zhu D, Lee R W, Heimann P, Nagler B, Wark J S 2012 Phys. Rev. Lett. 109 065002
[12] Marshall F J, McKenty P W, Delettrez J A, Epstein R, Knauer J P, Smalyuk V A, Frenje J A, Li C K, Petrasso R D, Séguin F H, Mancini R C 2009 Phys. Rev. Lett. 102 185004
[13] Reyes-Herrera J, Miranda J 2009 Nucl. Instr. and Meth. B 267 1776
[14] Kahoul A, Nekkab M, Deghfel B 2009 Nucl. Instr. and Meth. B 266 4969
[15] Gorlachev I, Gluchshenko N, Ivanov I, Kireyev A, Krasnopyorova M, Kurakhmedov A, Platov A, Sambayev Y, Zdorovets M 2019 Nucl. Instr. and Meth. B 448 19
[16] Lapicki G 2020 Nucl. Instr. and Meth. B 467 123
[17] Singh Y, Tribedi L C 2002 Phys. Rev. A 66 062709
[18] Cohen D D, Stelcer E, Crawford J, Atanacio A, Doherty G, Lapicki G 2014 Nucl. Instr. and Meth. B 318 11
[19] Gryzinski M 1965 Phys. Rev. A 24 336
[20] Johnson D E, Basbas G, McDaniel F D 1979 At. Data Nucl. Data tables 24 1
[21] Brandt W, Lapicki G 1981 Phys. Rev. A 23 1717
[22] Lapicki G 2002 Nucl. Instr. and Meth. B 189 8
[23] Vigilante M, Cuzzocrea P, De Cesare N, Murolo F, Perillo E, Spadaccini G 1990 Nucl. Instr. and Meth. B 51 232
[24] Kondo C, Takabayashi Y, Muranaka T, Masugi S, Azuma T, Komaki K, Hatakeyama A, Yamazaki Y, Takada E, Murakami T 2005 Nucl. Instr. and Meth. B 230 85
[25] Fritzsche S, Kabachnik N M, Surzhykov A 2008 Phys. Rev. A 78 032703
[26] Zhou X M, Cheng R, Lei Y, Sun Y B, Wang Y Y, Wang X, Xu G, Mei C X, Zhang X A, Chen X M, Xiao G Q, Zhao Y T 2016 Chin. Phys. B 25, 023402
[27] Awaya Y, Kambara T, Kanai Y 1999 Int. J. Mass. Spectrom.192 49
[28] Hopkins F, Elliott D O, Bhalla C P, Richard P 1973 Phys. Rev. A 8 2952
[29] Hoszowska J, Kheifets A K, Dousse J –Cl, Berset M, Bray I, Cao W, Fennane K, Kayser Y, Kavčič M, Szlachetko J, Szlachetko M 2009 Phys. Rev. Lett. 102 073006
[30] Horvat V, Watson R L, Peng Y 2009 Phys. Rev. A 79 012708
[31] Kavčič M, Kobal M, Budnar M, Dousse J –Cl, Tökési K 2005 Nucl. Instr. and Meth. B 233 235
[32] Kobal M 2005 Nucl. Instr. and Meth. B 229 165
[33] Cipolla S J 2007 Nucl. Instr. and Meth. B 261 153
[34] Cipolla S j, Hill B P 2005 Nucl. Instr. and Meth. B 241 129
[35] Miranda J, Lucio O G, Téllez E B, Martı́nez J N 2004 Radiat. Phys. Chem. 69 257
[36] Bearden J A 1967 Rev. Mod. Phys. 39 78
[37] Czarnota M, Pajek M, Banaś D, Dousse J -Cl, Maillard Y -P, Mauron O, Raboud P A, Berset M, Chmielewska D, Rzadkiewicz J, Sujkowski Z, Hoszowska J, Słabkowska K, Polasik M 2006 Braz. J. Phys. 36 546
[38] Semaniak J, Braziewicz J, Pajek M, Czyżewski T, Głowacka L, Jaskóła M, Hailer M, Karschnick R, Kretschmer W, Halabuka Z, Trautmann D 1995 Phys. Rev. A 52 1125
[39] Sarkadi L, Mukoyama T 1980 J. Phys. B: Atom. Molec. Phys. 13 2255
[40] Watson R L, Blackadar J M, Horvat V 1999 Phys. Rev. A 60 2959
[41] Banaś D, Pajek M, Semaniak J, Braziewicz J, Kubala-Kukuś A, Majewska U, Czyżewski T, Jaskóła M, Kretschmer W, Mukoyama T, Trautmann D 2002 Nucl. Instr. and Meth. B 195 233
[42] Kavčič M, Šmit Ž, Budnar M 1997 Phys. Rev. A 56 4675
[43] Campbell J L 2003 At. Data Nucl. Data tables 85 291
[44] Campbell J L 2009 At. Data Nucl. Data tables 95 115
[45] Ouziane S, Amokrane A, Zilabdi M 2000 Nucl. Instr. and Meth. B 161-163 141
[46] Kennedy V J, Augusthy A, Varier K M, Magudapathy P, Nair K G M, Dhal B B, Padhi H C 1998 Nucl. Instr. and Meth. B 134 165
[47] Zhou X M, Cheng R, Wang Y Y, Lei Y, Chen Y H, Chen X M, Zhao Y T, Xiao G Q 2017 Nucl. Instr. and Meth. B 408 140
[48] Lapicki G, Murty G A V R, Raju G J N, Reddy B S, Reddy S B, Vijayan V 2004 Phys. Rev. A 70, 062718
[49] Lapicki G, Mehta R, Duggan J I, Kocur P M, Price J L, McDaniel F D 1986 Phys. Rev. A 34 3813
[50] Scofield J H 1974 At. Data Nucl. Data tables 14 121
[51] Scofield J H 1974 At. Data Nucl. Data tables 10 1507
-
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