Hostname: page-component-8448b6f56d-wq2xx Total loading time: 0 Render date: 2024-04-17T09:26:02.185Z Has data issue: false hasContentIssue false

EXPERIMENTAL STUDY ON THE CHARGE-EXCHANGE CROSS-SECTIONS OF LOW-ENERGY CARBON IONS IN HELIUM AT GXNU

Published online by Cambridge University Press:  27 July 2023

Guofeng Zhang
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Hongtao Shen*
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, Guilin Guangxi 541004, China
Zhenchi Zhao
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Junsen Tang
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, Guilin Guangxi 541004, China
Li Wang
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Dingxiong Chen
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Linjie Qi
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Kaiyong Wu
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Xinyi Han
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
He Ouyang
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China
Ning Wang
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, Guilin Guangxi 541004, China
Xiaojun Sun
Affiliation:
College of Physics and Technology, Guangxi Normal University, Guilin Guangxi 541004, China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology, Guilin Guangxi 541004, China
Ming He
Affiliation:
China Institute of Atomic Energy, Beijing 102413, China
Kimikazu Sasa
Affiliation:
University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
Shan Jiang
Affiliation:
China Institute of Atomic Energy, Beijing 102413, China
*
*Corresponding author. Email: shenht@gxnu.edu.cn

Abstract

Compared with nitrogen and argon, helium is lighter and can better reduce the beam loss caused by angular scattering during beam transmission. The molecular dissociation cross-section in helium is high and stable at low energies, which makes helium the prevalent stripping gas in low-energy accelerator mass spectrometry (AMS). To study the stripping behavior of 14C ions in helium at low energies, the charge state distributions of carbon ion beams with −1, +1, +2, +3, and +4 charge states were measured at energies of 70–220 keV with a compact 14C-AMS at Guangxi Normal University (GXNU). The experimental data were used to analyze the stripping characteristics of C-He in the energy range of 70–220 keV, and new charge state yields and exchange cross-sections in C-He were obtained at energies of 70–220 keV.

Type
Conference Paper
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of University of Arizona

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Selected Papers from the 24th Radiocarbon and 10th Radiocarbon & Archaeology International Conferences, Zurich, Switzerland, 11–16 Sept. 2022

References

REFERENCES

Bennett, CL, Beukens, RP, Clover, MR, Gove, HE, Liebert, RB, Litherland, AE, Sondheim, WE. 1977. Radiocarbon dating using electrostatic accelerators: negative ions provide the key. Science 198(4316):508510.CrossRefGoogle ScholarPubMed
Datz, S, Lutz, HO, Bridwell, LB, Moak, CD, Betz, HD, Ellsworth, LD. 1970. Electron capture and loss cross sections of fast bromine ions in gases. Physical Review A 2(2):430.CrossRefGoogle Scholar
Dmitriev, IS, Teplova, YA, Belkova, YA, Novikov, NV, Fainberg, YA. 2010. Experimental electron loss and capture cross sections in ion–atom collisions. Atomic Data and Nuclear Data Tables 96(1):85121.CrossRefGoogle Scholar
Guo, Z. 1994. Modern nuclear analysis techniques and their applications in environmental science. Beijing: Atomic Energy Press. p. 79127. In Chinese.Google Scholar
Hvelplund, P, Lægsgaard, E, Pedersen, EH. 1972. Equilibrium charge distributions of light ions in helium, measured with a position-sensitive open electron multiplier. Nuclear Instruments and Methods 101(3):497502.CrossRefGoogle Scholar
Ishii, K, Itoh, A, Okuno, K. 2004. Electron-capture cross sections of multiply charged slow ions of carbon, nitrogen, and oxygen in He. Physical Review A 70(4): 042716.CrossRefGoogle Scholar
Janev, RK, Phaneuf, RA, Hunter, HT. 1988. Recommmended cross sections for electron capture and ionization in collisions of Cq+ and Oq+ ions with H, He, and H2. Atomic Data and Nuclear Data Tables 40(2):249281.CrossRefGoogle Scholar
Lee, HW, Galindo-Uribarri, A, Chang, KH, et al. 1984. The 12 CH 2 2+ molecule and radiocarbon dating by accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research B 5(2):208210.CrossRefGoogle Scholar
Loeb, LB, Bragg, W. 2004. The kinetic theory of gases. 3rd edition. Dover Phoenix Editions. p. 293. ISBN 978-0-486-49572-9Google Scholar
Maxeiner, S, Seiler, M, Suter, M, Synal, HA. 2015. Charge state distributions and charge exchange cross sections of carbon in helium at 30–258 keV. Nuclear Instruments and Methods in Physics Research B 361:541547.CrossRefGoogle Scholar
Nakai, Y, Sataka, M. 1991. Electron capture and loss cross sections in collisions of C atoms with He. Journal of Physics B: Atomic, Molecular and Optical Physics, 24(3):L89.CrossRefGoogle Scholar
Purser, KH. 1977. US Patent: 4037100, Appl. No: 662968.Google Scholar
Rottmann, LM, Bruch, R, Neill, P, Drexler, C, DuBois, RD, Toburen, LH. 1992. Single-electron capture by 100–1500-keV C+ ions in several atomic and molecular targets. Physical Review A 46(7):3883.CrossRefGoogle ScholarPubMed
Santos, ACF, Sigaud, GM, Melo, WS, Sant’Anna, MM, Montenegro, EC. 2010. Absolute cross sections for electron loss, electron capture, and multiple ionization in collisions of C3+ with noble gases. Physical Review A 82(1):012704.CrossRefGoogle Scholar
Schulze-König, T, Seiler, M, Suter, M, Wacker, L, Synal, HA. 2011. The dissociation of 13CH and 12CH2 molecules in He and N2 at beam energies of 80–250 keV and possible implications for radiocarbon mass spectrometry. Nuclear Instruments and Methods in Physics Research B 269(1):3439.CrossRefGoogle Scholar
Seiler, M. 2014. Accelerator mass spectrometry for radiocarbon at very low energies [doctoral dissertation]. ETH Zurich.Google Scholar
Shen, H, Zhang, G, Tang, J, Shi, S, Wang, L, Chen, D, Jiang, S. 2022. A single-stage accelerator mass spectrometer and its applications at Guangxi Normal University. Nuclear Instruments and Methods in Physics Research B 532:6872.CrossRefGoogle Scholar
Stier, PM, Barnett, CF, Evans, GE. 1954. Charge states of heavy-ion beams passing through gases. Physical Review 96(4):973.CrossRefGoogle Scholar
Synal, HA, Jacob, S, Suter, M. 2000. The PSI/ETH small radiocarbon dating system. Nuclear Instruments and Methods in Physics Research B 172(1–4):17.CrossRefGoogle Scholar
Synal, HA, Stocker, M, Suter, M. 2007. MICADAS: a new compact radiocarbon AMS system. Nuclear Instruments and Methods in Physics Research B 259:713.CrossRefGoogle Scholar
Tawara, H, Russek, A. 1973. Charge changing processes in hydrogen beams. Reviews of Modern Physics 45(2):178.CrossRefGoogle Scholar
Umrath, W. 2001. Fundamentals of vacuum technology. Cologne, Germany: Leybold Vacuum GmbH. p. 14.Google Scholar
Unterreiter, E, Schweinzer, J, Winter, H. 1991. Single electron capture for impact of (0.5–9 keV) C2+ on He, Ar and H2. Journal of Physics B 24(5):1003.CrossRefGoogle Scholar
Wittkower, AB, Betz, HD. 1973. Equilibrium-charge-state distributions of energetic ions (Z> 2) in gaseous and solid media. Atomic Data and Nuclear Data Tables 5(2):113166.CrossRefGoogle Scholar
Zhao, Z. 2014. Experimential study on collision process: noble gas and SF6 with negative ions. Fudan University. In Chinese.Google Scholar
Supplementary material: PDF

Zhang et al. supplementary material

Zhang et al. supplementary material

Download Zhang et al. supplementary material(PDF)
PDF 24.8 KB