K-X rays induced by helium-like C ions in thick target atoms of different metals

Mei Ce-Xiang; Zhang Xiao-An; Zhou Xian-Ming; Liang Chang-Hui; Zeng Li-Xia; Zhang Yan-Ning; Du Shu-Bin; Guo Yi-Pan; Yang Zhi-Hu

doi:10.7498/aps.73.20231477

Abstract

The physical process and experimental phenomena of the interaction between highly charged heavy ions and atoms are very complex, particularly in the intermediate energy region, because of the limitation of accelerator and existing theoretical analysis, less systematic researches, incomplete atomic data, and not so high accuracy. The research of celestial element X-ray data is more scarce and the research of X-ray data of celestial elements is even more scarce. Helium-like C ions with 15–55 MeV kinetic energy provided by the HI-13 MV series accelerator of the China Institute of Atomic Energy are used to bombard Fe, Ni, Nb and Mo thick targets. The HpGe detectors are used to measure the K-X ray emission, and the corresponding K-X ray emission cross sections are obtained. Due to the different ionization degrees of the shell layers of various target atoms, the branching intensity ratio of K_βto K_α X rays emitted by Helium-like C ions interacting with Fe and Ni target atoms decreases with the increase of the kinetic energy of the incident ions, while the branching intensity ratio of K-X rays emitted by Nb and Mo target atoms does not change significantly. The K-X ray emission cross section of target atom is calculated by using the formula of thick target cross section, and compared with the results of different theoretical models and proton. The results show that with the increase of the kinetic energy of helium-like C ions, the total emission cross section of the K_βand K_α X ray emitted from Fe and Ni target atoms are most consistent with the BEA correction model considering multiple ionization, and the total emission cross section of K_βand K_α X ray emitted from Nb and Mo target atoms are closest to the theoretical values of PWBA model. When the energy of proton is the same as that of single nucleon C ion, the cross section of K-X ray produced by proton is about three orders of magnitude smaller than that produced by helium-like C ion.

Keywords:

Authors and contacts

1.
Ion beam & Optical Physical joint Laboratory, Xianyang Normal University, Xianyang 712000, China
2.
Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
3.
Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China

Corresponding author: Yang Zhi-Hu, z.yang@impcas.ac.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 12205247), the Natural Fundamental Science Research Project of Shaanxi Province, China (Grant No. 2023-JC-QN-0080), the Fundamental Science Research Project for Mathematics and Physics of Shaanxi Province, China (Grant No. 22JSQ040), the Qinglan Talents Training Project of Xianyang Normal University, China (Grant No. XSYQL201910), the Key Laboratory of Ion Beam and Optical Physics of Xianyang, China (Grant No. L2022-CXNL-ZDSYS-001), and Shaanxi University Students Innovation and Entrepreneurship Training Program, China (Grant No. S202010722055S).

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References

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Cited By

图 1 实验装置示意图

Figure 1. Schematic diagram of experimental equipment.

DownLoad: Full-Size Img PowerPoint

图 2 127 μm Be窗厚度的HpGe探测效率曲线

Figure 2. Detection efficiency curve of HpGe with 127 μm Be window.

DownLoad: Full-Size Img PowerPoint

图 3 15 MeV 类氦C离子轰击各靶产生的靶的 K-X 射线谱

Figure 3. Targets K-X ray spectra produced by 15 MeV helium-like C ions.

DownLoad: Full-Size Img PowerPoint

图 4 类氦C离子诱发不同金属靶的K-X射线分支比随入射能量的变化

Figure 4. Variation of K-X ray branching ratio of different metal targets induced by helium-like C ions with incident energy.

DownLoad: Full-Size Img PowerPoint

图 5 单核子能量下C⁴⁺与H分别入射各靶的X射线产生截面比较

Figure 5. Comparison of X ray generation cross sections of C⁴⁺ and H incident on each target at single nucleon energy.

DownLoad: Full-Size Img PowerPoint

图 6 类氦C离子激发不同金属靶的K-X射线截面随入射能量的变化

Figure 6. K-X ray cross sections of helium-like C ions excited different metal targets as a function of incident energy.

DownLoad: Full-Size Img PowerPoint

[1]	Gerjuoy E 1961 Rev. Mod. Phys. 33 544 Google Scholar
[2]	曾谨言 2001 量子力学导论(第二版)(北京: 北京大学出版社)第287页 Zeng J Y 2001 Introduction to Quantum Mechanics (2nd Ed.) (Beijing: Peking University Press) p287
[3]	Bethe H A 1950 Rev. Mod. Phys. 22 213 Google Scholar
[4]	Kocbach L, Hansteen J M, Gundersen R 1980 Nucl. Instrum. Methods. B 169 281 Google Scholar
[5]	Liu Z, Cipolla S J 1996 Comp. Phys. Comm. 97 315 Google Scholar
[6]	Gryziński M 1965 Phys. Rev. 138 A336
[7]	McGuire J H, Richard P 1973 Phys. Rev. A 8 1374
[8]	Brandt W, Lapicki G 1979 Phys. Rev. A 20 465 Google Scholar
[9]	Basbas G, Brandt W, Laubert R 1973 Phys. Rev. A 7 983 Google Scholar
[10]	Basbas G, Brandt W, Laubert R 1978 Phys. Rev. A 17 1655 Google Scholar
[11]	Gray T J, Cocke C L, Gardner R K 1977 Phys. Rev. A 16 1907 Google Scholar
[12]	Lutz H O, Stein J, Datz S, Moak C D 1972 Phys. Rev. Lett. 28 8 Google Scholar
[13]	Brandt W, Laubert R, Mourinot M 1973 Phys. Rev. Lett. 30 358 Google Scholar
[14]	Timmerman R, Weeren R J V, Botteon A, Röttgering H J A, McNamara B R, Sweijen F, Bîrzan L, Morabito L K 2022 Astron. Astrophys. 668 A
[15]	Kimura K, Urushihara D, Kondo R, Yamamoto Y, Ang A K R, Asaka T, Happo N, Hagihara T, Matsushita T, Tajiri H, Miyazaki H, Ohara K, Iwata M, Hayashi K 2021 Phys. Rev. B 104 144101 Google Scholar
[16]	Lalande M, Abdelmouleh M, Ryszka M, Vizcaino V, Rangama J, Méry A, Durantel F, Schlathölter T, Poully J C 2018 Phys. Rev. A 98 062701 Google Scholar
[17]	Coskun A F, Han G J, Ganesh S, Chen S Y, Clavé X R, Harmsen S, Jiang S, Schürch C M, Bai Y H, Hitzman C, Nolan G P 2021 Nat. Commun. 12 789 Google Scholar
[18]	Collaboration H 2017 Nature 551 478 Google Scholar
[19]	Paul H, Sacher J 1989 Atom. Data Nucl. Data 42 105 Google Scholar
[20]	Yu Y C, McNeir M R, Weathers D L, Duggan J L, McDaniel F D, Lapicki G 1991 Phys. Rev. A 44 5702 Google Scholar
[21]	Bertol A P L, Hinrichs R, Vasconcellos M A Z 2015 Nucl. Instr. Meth. B 365 8 Google Scholar
[22]	Song Z Y, Yang Z H, Zhang H Q, Shao J X, Cui Y, Zhang Y P, Zhang X A, Zhao Y T, Chen X M, Xiao G Q 2015 Phys. Rev. A 91 042707 Google Scholar
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[24]	Kallman T R, Palmeri P 2007 Rev. Mod. Phys. 79 79 Google Scholar
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[26]	Wilkes B J, Tucker W, Schartel N, Santos-Lleo M 2022 Nature 606 261 Google Scholar
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[28]	Bambynek W, Crasemann B, Fink R W, et al. 1972 Rev. Mod. Phys. 44 716 Google Scholar
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[30]	Honda S, Aoki W, Ishimaru Y, Wanajo S, Ryan S G 2006 Astrophys. J. 643 1180 Google Scholar
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[32]	Garcia J D, Fortner R J, Kavanagh T M 1973 Rev. Mod. Phys. 45 111 Google Scholar
[33]	Zhang H Q, Chen X M, Yang Z H, Xu J K, Cui Y, Shao J X, Zhang X, Zhao Y T, Zhang Y P, Xiao G Q 2010 Nucl. Instr. Meth. B 268 1564 Google Scholar
[34]	Khan M R, Crumpton D 1978 Appl. Phys. 15 335 Google Scholar
[35]	McKnight R H, Thornton S T, Karlowicz R R 1975 Nucl. Instr. Methods. 123 1 Google Scholar
[36]	Open Program The Stopping and Range of Ions in Matter, Ziegler J F, Ziegler M D, Biersack J P http://www.srim.org/ [2008-04
[37]	周贤明, 尉静, 程锐, 赵永涛, 曾利霞, 梅策香, 梁昌慧, 李耀宗, 张小安, 肖国青 2021 物理学报 70 023201 Google Scholar Zhou X M, Wei J, Cheng R, Zhao Y T, Zeng L X, Mei C X, Liang C H, Li Y Z, Zhang X A, Xiao G Q 2021 Acta. Phys. Sin. 70 023201 Google Scholar
[38]	Burch D, Ingalls W B, Risley J S, Heffner R 1972 Phys. Rev. Lett. 29 1719 Google Scholar
[39]	Banaś D, Pajek M, Semaniak J, et al. 2002 Nucl. Instr. Meth. B 195 233 Google Scholar
[40]	周贤明, 赵永涛, 程锐, 王兴, 雷瑜, 孙渊博, 王瑜玉, 徐戈, 任洁茹, 张小安, 梁昌慧, 李耀宗, 梅策香, 肖国青 2013 物理学报 62 083201 Google Scholar Zhou X M, Zhao Y T, Cheng R, Sun Y B, Wang X, Lei Y, Wang Y Y, Xu G, Ren J R, Zhang X A, Liang C H, Li Y Z, Mei C X, Xiao G Q 2013 Acta. Phys. Sin. 62 083201 Google Scholar
[41]	Zhou X M, Zhao Y T, Cheng R, Wang Y Y, Lei Y, Wang X, Sun Y B 2013 Nucl. Instrum. Meth. B 299 61 Google Scholar

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