Publications

Published Papers (earlier)

Published Papers (1990 - )

• T. N. Chang, Radiative Lifetimes of the Bound Excited States of Magnesium and Beryllium, Phys. Rev. A41, 4922 (1990). Reprint (PDF file - 586 KB)
• T. N. Chang and X. Tang, Oscillator Strengths for the Bound-Bound Transitions in Beryllium and Magnesium, J. Quant. Spectrosc. and Rad. Transfer 43, 207 (1990).
• X. Tang, T. N. Chang, P. Lambropoulos, S. Fournier, and L. F. DiMauro, Multiphoton Ionization of Magnesium with Configuration Interaction Calculation, Phys. Rev. A41, 5265 (1990). Reprint (PDF file - 356 KB)
• T. N. Chang and Y. Mu, Energy Levels and Transition Probabilities of Bound Excited States of Be-like N IV, J. Quant. Spectrosc. and Rad. Transfer 44, 413 (1990).
• T. N. Chang and R. Q. Wang, Effect of Positive-energy Orbitals on the Configuration-interaction Calculation of the H^- Atom, Phys. Rev. A43, 1218 (1991). Reprint (PDF file - 473 KB)
• T. N. Chang and R. Q. Wang, Nonuniform Variation of the Radiative Lifetimes of the Bound Excited States along the Mg Isoelectronic Sequence, Phys. Rev. A44, 80 (1991).
• T. N. Chang and X. Tang, Photoionization of two-electron Atoms using a Nonvariational Configuration-interaction Approach with Discretized Finite Basis, Phys. Rev. A44, 232 (1991). Reprint (PDF file - 624 KB)
• T. N. Chang, A simple configuration-interaction approach to the study of electron correlation in divalent atoms, Proc. National Science Council, Taiwan, ROC, V. 15, Part A, pp 1-17 (1991).
• T. N. Chang and X. Tang, Atomic Structure Effects in Multiphoton ionization of magnesium, Phys. Rev. A46, R2209 (1992). Reprint (PDF file - 274 KB)
• T. N. Chang, Widths of the Doubly Excited Resonances of Two-electron Atoms Below the n=2 Threshold, Phys. Rev. A47, 705 (1993). Reprint (PDF file - 310 KB)
• T. N. Chang, He Photoionization to the Doubly Excited (2pnd) and (sp,2n-) ¹P ^o Series, Phys. Rev. A47, 3441 (1993). Reprint (PDF file - 235 KB)
• T. N. Chang and M. Zhen, Photoionization from 1sns ^1,3 S ^e States of Helium, Phys. Rev. A47, 4849 (1993). Reprint (PDF file - 549 KB)
• T. N. Chang and Lizhi Zhu, Resonant Width and Energy Determined by Photoionization from Excited Divalent Atoms, Phys. Rev. A48, R1725 (1993). Reprint (PDF file - 318 KB)
• Tu-nan Chang, B-spline Based Configuration-Interaction Approach for Photoionization of Two-electron and Divalent Atoms, Many-body Theory of Atomic Structure and Photoionization, edit by T. N. Chang (World Scientific, Singapore, 1993), p. 213-47. Reprint (PDF file - 4.63 MB)
• T. N. Chang, Variation of Resonant Widths Along the Doubly Excited Autoionization Series in Two-electron and Divalent Atoms, Chinese J. Phys. 32, 159 (1994).
• T. N. Chang, Photoionization Dominated by Doubl-excitation in Two-electron and Divalent Atoms, Application of Many-body Theory to Atomic Physics, edited by M. S. Pindzola and James J. Boyle (Cambridge University Press, Cambridge, 1994), p. 129.
• T. N. Chang and Lizhi Zhu, Photoionization of Be Isoelectronic Sequence from the Ground and the ¹S Bound Excited States, Phys. Rev. A51, 374 (1995). Reprint (PDF file - 598 KB)
• T. N. Chang and T. K. Fang, Wavelength Dependence of the Nonresonant Photoionization Cross Section of a Two-electron Atom Near the Ionization Threshold, Phys. Rev. A52, 2052 (1995). Reprint (PDF file - 338 KB)
• T. N. Chang and T. K. Fang, Effect of Positive-energy Orbitals on the Oscillator Strength and Photoionization Cross Section, Phys. Rev. A52, 2638 (1995). Reprint (PDF file - 495 KB)
• Takashi Nakajima and T. N. Chang, Fine Structure and Transition Probabilities of the 2p⁵nl Bound Excited States of Ne Atom, Z. Phys. D 36, 41 (1996).
• T. K. Fang, B. I. Nam, Y. S. Kim, and T. N. Chang, Resonant Structures of Overlapping Doubly Excited autoionization Series in Photoionization of Mg-like Al⁺ and Si⁺² Ions, Phys. Rev. A55, 433 (1997). Reprint (PDF file - 220 KB)
• T. K. Fang and T. N. Chang, Doubly Excited Resonance Structures in He Photoionization from 1s2s ^1,3S Metastable States, Phys. Rev. A56, 1650 (1997). Reprint (PDF file - 107 KB)
• T. K. Fang and T. N. Chang, Determination of Profile Parameteres of a Fano Resonance without an Ultra-high Energy resolution, Phys. Rev. A57, 4407 (1998). Reprint (PDF file - 182 KB)
• T. N. Chang, T. K. Fang, Y. S. Kim, and B. I. Nam, Interference Effects to the Spectra of Doubly Excited Autoionization Series, J. of Korean Phys. Soc. 32, 200 (1998).
• T. K. Fang and T. N. Chang, Photoionization from excited Mg atoms, Phys. Rev. A61, 052716 (2000). Reprint (PDF file - 203 KB)
• T. K. Fang and T. N. Chang, B-spline based multichannel K-matrix method for atomic photoionization, Phys. Rev. A61, 062706 (2000). Reprint (PDF file - 122 KB)
• W. J. Chen, T. K. Fang, Y. K. Ho, C. K. Ni, A. H. Kung, T. S. Yih, H. S. Fung, C. C. Chu, H. H. Wu, and T. N. Chang, Synchrotron Radiation/Lasers and Doubly-excited Atoms, in Recent Advances and Cross-Century Outlooks in Physics, edited by P. Chen and C. Y. Wong (World Scientific, Singapore, 2000), p 173-90. Reprint (PDF file - 754 KB)
• T. N. Chang, X. Y. Luo, H. S. Fung, and T. S. Yih Deconvolution of Atomic Photoabson Spectra: a match betweenReprint and experiment , J. Chinese Chem. Soc., Vol. 48, 347 (2001). Reprint (PDF file - 5.6 MB)
• H. S. Fung, H. H. Wu, T. S. Yih, T. K. Fung, and T. N. Chang, Photabsorption of Mg above the 3p threshold, Phys. Rev. A64, 052716 (2001). Reprint (PDF file - 993 KB)
• W. J. Chen, T. K. Fang, T. N. Chang, T. S. Yih, C. K. Ni, and A. H. Kung, The 3snd ¹D to the 3png ¹F autoionization resonances of Mg, Phys. Rev. A65, 032717 (2002). Reprint (PDF file - 124 KB)
• T. N. Chang and T. K. Fang, Multiple excitation in photoionization using B-splines, Radiation Physics and Chemistry 70, 173-190 (2004). Reprint (PDF file - 1.8 MB)
• T. K. Fang and T. N. Chang, B-spline-based complex-rotation method with spin-dependent interaction, Phy. Rev. A76, 012721 (2007). Reprint (PDF file - 370 KB)
• T. N. Chang and Yuxiang Luo, Core-excitation effects on atomic transitions, J. Phys. Conf. Ser. 80, 012002 (2007). Reprint (PDF file - 831KB)
• J. H. Chen, T. K. Fang, C. C. Chu, T. S. Yih, and T. N. Chang, Spin-mixed doubly excited resonances in Ca and Sr spectra, Phys. Rev. A 80, 042509 (2009). Reprint (PDF file - 800 KB)
• J. I. Lo, T. S. Yih, Y. X. Luo, H. S. Fung, Y. Y. Lee, and T. N. Chang, Column density and temperature effects on narrow resonance structures in atomic photoionization and photoabsorption, Phys. Rev. A 82, 012504 (2010). Reprint (PDF file - 1 MB)
• T. K. Fang, J. I. Lo, T. S. Yih, and T. N. Chang, Photoionization of Ca in a static electric field, Phys. Rev. A 82, 063402 (2010). Reprint (PDF file - 2.8 MB)
• T.N. Chang and T. K. Fang, Atomic photoionization in changing plasma environment Phys. Rev. A 88, 023406 (2013). Reprint (PDF file - 3.6 MB)
• T.N. Chang, T. K. Fang, and Y. K. Ho, One- and two-photon ionization of of hydrogen atom in Debye plasmas, Phys. Plasmas 20, 092110 (2013). Reprint (PDF file - 1.8 MB)
• T.N. Chang, T. K. Fang, and X. Gao, Interaction between overlapping photo-ionized doubly excited resonance series for He atom, Phys. Rev. A 91, 023403 (2015). Reprint (PDF file - 0.9 MB)
• T.N. Chang, T. K. Fang, and X. Gao, Redshift of the Lyman-alpha emission line of the H-like ions in a plasma environment, Phys. Rev. A 91, 0063422 (2015). Reprint (PDF file - 0.32 MB)
• T.N. Chang and T. K. Fang, Erratum: Atomic photoionization in changing plasma environment Phys. Rev. A 91, 069902(E) (2015). Reprint (PDF file)
• T. K. Fang, X. Gao, and T.N. Chang, Overlapping photo-ionized doubly excited resonance series for Li+ atom, J. Phys. B50, 115005 (2017). Reprint (PDF file - 1 MB)
• T. K. Fang, C. S. Wu, X. Gao, and T.N. Chang, Redshift of the He-alpha emission line of the He-like ions under plasma environment, Phys. Rev. A 96 052502 (2017). Reprint (PDF file - 0.46 MB)
• T. K. Fang, C. S. Wu, X. Gao, and T.N. Chang, Erratum: Redshift of the He-alpha emission line of the He-like ions under plasma environment, Phys. Rev. A 96 069906(E) (2017). Reprint (PDF file - 0.35 MB)
  
• T. K. Fang, C. S. Wu, X. Gao, and T.N. Chang, Variation of the oscillator strength for the alpha emission lines of the one- and two-electron ions in dense plasma, Phys. Plasmas 25 102116 (2018). Reprint (PDF file - 1.53 MB)
  
• C. S. Wu, S. M. Chen, T. N. Chang, and X. Gao, Variation of the transition energies and oscillator strengths for the 3C and 3D lines of the Ne-like ions under plasma environment, J. Phys. B 52 185004 (2019). Reprint (PDF file - 0.9 MB)
  

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Many-body Theory of Atomic Structure and Photoionization

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