Charge exchange spectroscopy in Snq+(q = 6-15)-He collisions

Extreme ultra-violet (EUV) spectra of multiply charged tin ions were measured in the wavelength range of 5-38 nm following the electron capture into excited states of slow Snq+(q = 6-15) ions passing through He gas target. The charge-state dependence of 4d-nl (nl = 4f, 5p and 5f) transitions was obtained with assumption of the single-electron capture. Identi.cation of the transitions has been carried out by comparison with the results of the theoretical calculation.

[1]  V. Banine,et al.  Comparison of experimental and simulated extreme ultraviolet spectra of xenon and tin discharges. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[2]  Marchetti,et al.  Absolute total and one- and two-electron transfer cross sections for Arq+ (8 <= q <= 16) on He and H2 at 2.3q keV. , 1993, Physical review. A, Atomic, molecular, and optical physics.

[3]  Svendsen,et al.  Statistics and characteristics of xuv transition arrays from laser-produced plasmas of the elements tin through iodine. , 1994, Physical review. A, Atomic, molecular, and optical physics.

[4]  J J A M van der Mullen,et al.  Characterization of a vacuum-arc discharge in tin vapor using time-resolved plasma imaging and extreme ultraviolet spectrometry. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[5]  Y. N. Joshi,et al.  Analysis of the 4d7-4d65p transition array of the eighth spectrum of tin: Sn VIII , 1993 .

[6]  H. Tanuma,et al.  Present Status of Highly Charged Ion Experiments with an ECR Ion Source at TMU , 2001 .

[7]  K. Nishihara,et al.  Multi-electron correlations in atomic or ionic excited states , 2005 .

[8]  K. Nishihara,et al.  EUV emission spectra from excited multiply charged xenon ions produced in charge-transfer collisions , 2005 .

[9]  H. Andersson,et al.  Total cross sections for different charge changing processes in collisions of highly charged Xe ions with He atoms at low energy , 1988 .

[10]  Biedermann,et al.  Semiempirical scaling laws for electron capture at low energies. , 1996, Physical review. A, Atomic, molecular, and optical physics.

[11]  G. O'Sullivan,et al.  Tunable narrowband soft x-ray source for projection lithography , 1994 .

[12]  T. J. Gray,et al.  Total cross sections for electron capture and transfer ionization by highly stripped, slow Ne, Ar, Kr, and Xe projectiles on helium , 1984 .

[13]  A. Cummings,et al.  Simplified modeling of 13.5 nm unresolved transition array emission of a Sn plasma and comparison with experiment , 2005 .