X-ray production cross sections of thick Cu and Au targets induced by MeV Cq plus ions

被引：0

作者：

Hussain, J. ^{[1
,2
]}

Yu, L. D. ^{[3
,4
]}

Ahmad, I. ^{[1
]}

Ali, T. ^{[1
]}

Ullah, S. ^{[5
]}

Shahid, M. ^{[6
]}

Tippawan, U. ^{[7
]}

机构：

[1] QAU, Natl Ctr Phys NCP, Islamabad 48000, Pakistan

[2] Chiang Mai Univ, Fac Sci, PhD Program Appl Phys, Chiang Mai 50200, Thailand

[3] Chiang Mai Univ, Plasma & Beam Phys Res Facil, Chiang Mai 50200, Thailand

[4] Chiang Mai Univ, Thailand Ctr Excellence Phys, POB 70, Chiang Mai 50202, Thailand

[5] Inst Space Technol IST, Islamabad 44000, Pakistan

[6] Pakistan Nucl Regulatory Author, PNRA Headquarter, Mauve Area G-8-1, Islamabad, Pakistan

[7] Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai 50200, Thailand

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2025年 / 563卷

关键词：

X-ray production cross section (XPCS); Charge state; Heavy ion; Thick target; Particle-induced X-ray emission (PIXE); Equilibrium charge state (ECS); Cq plus; SHELL COULOMB IONIZATION; CHARGE-STATE; CARBON-IONS; ATOMS; ENERGIES; IMPACT; FE; SI; TI; DEPENDENCE;

D O I：

10.1016/j.nimb.2025.165687

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This study measured K-, L-, and M-shell X-ray production cross sections (XPCSs) of thick Cu and Au targets induced by 1 MeV to 22 MeV multiple-charge-state C-ions as a function of ion energy and charge state, compared with using He-ions. XPCS measurements were based on the Merzbacher-Lewis relation. X-ray energy shifts and peak broadening were observed in materials irradiated by heavy C-ions, demonstrating that multiple ionization (MI) processes are at play for C-ions but not for He-ions. While the experimental XPCSs induced by He-ions aligned with predictions of theoretical models and did not exhibit charge state dependence, the XPCSs induced by C-ions exhibited more complex patterns, depending on ion energy and incident charge state. The complexity of the ion charge state effect was extended to the equilibrium charge state (ECS) in the thick target formalism. Theoretical models modified with MI and ECS exhibited improved predictions of the measured data.

引用

页数：14

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