Accurate wavelengths for resonance lines of the Cu i and Zn i isoelectronic sequences for Pd to Dy

Sugar, Jack; Kaufman, Victor; Baik, Dae Hyun; Kim, Yong-Ki; Rowan, W. L.

doi:10.1364/josab.8.001795

Cited by 31 publications

(22 citation statements)

References 21 publications

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“…However, no EBIT measurements have been reported so far for Pr ions. As for Nd (Z = 60) ions, only a few line identifications for highly charged ions had been reported using laser-produced plasmas or magnetically confined fusion plasmas [11,[15][16][17][18][19]. Recently, 59 lines of Br-like to Ni-like Nd ions have been identified in the EBIT facility at NIST [10].…”

Section: Introductionmentioning

confidence: 99%

Spectra of Ga-Like to Cu-Like Praseodymium and Neodymium Ions Observed in the Large Helical Device

Suzuki

Koike

Murakami

et al. 2021

Atoms

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Extreme ultraviolet (EUV) spectra of highly charged praseodymium (Pr) and neodymium (Nd) ions have been investigated in optically thin high-temperature plasmas produced in the Large Helical Device (LHD), a magnetically confined torus device for fusion research. Discrete spectral lines emitted mainly from highly charged ions having 4s or 4p outermost electrons were observed in plasmas with electron temperatures of 0.8–1.8 keV. Most of the isolated lines of Ga-like to Cu-like Nd ions were identified by a comparison with the recent data recorded in an electron beam ion trap (EBIT). The isolated lines of Pr ions corresponding to the identified lines of Nd ions were easily assigned from a similarity of the spectral feature for these two elements. As a result, some of the lines of Pr ions have been newly identified experimentally for the first time in this study.

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Section: Introductionmentioning

confidence: 99%

Spectra of Ga-Like to Cu-Like Praseodymium and Neodymium Ions Observed in the Large Helical Device

Suzuki

Koike

Murakami

et al. 2021

Atoms

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“…New measurements of the Zn-like resonance lines 4s 2 1 S 0 − 4s4p 1,3 P 1 of Pd 16+ to Dy 36+ , with an uncertainty of ±0.005Å, were reported by Sugar et al in Ref. [13]. The light source was the text tokamak at the Fusion Research Center in Austin, Texas.…”

Section: Introductionmentioning

confidence: 99%

Relativistic many-body calculations of the energies ofn=4states along the zinc isoelectronic sequence

et al. 2008

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Energies of the 44 even-parity and 40 odd-parity (4l4l ′) states of ions of the zinc isoelectronic sequence are determined through second order in relativistic many-body perturbation theory. Our calculations start from a Ni-like V (N −2) Dirac-Fock potential. Two alternative treatments of the Breit interaction are investigated. In the first approach, we omit Breit contributions to the Dirac-Fock potential and evaluate Coulomb and Breit-Coulomb corrections through second order perturbatively. This approach was used previously to evaluate energies of Be-, B-, Mg-, and Yb-like systems. In the second approach, we include both Coulomb and Breit contributions to the Breit-Dirac-Fock potential and then treat the residual Breit and Coulomb interactions perturbatively. Results obtained from the two approaches are compared and discussed. Theoretical excitation energies are compared with critically evaluated experimental data and with results from other recent calculations. Trends of excitation energies including splitting of triplet terms as functions of nuclear charge Z = 34-100 are illustrated graphically for some states. The resulting Z-dependence shows explicitly the effect of mixing of [4p 2 + 4s4d], [4d 2 + 4p4df ], and [4p4d + 4s4f ] configurations.

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“…The resonance transitions in such ions have therefore been studied up to very high ionization stages, using a variety of techniques [1][2][3][4][5][6][7]. The resonance transitions in such ions have therefore been studied up to very high ionization stages, using a variety of techniques [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Time resolved EUV spectroscopy on foil-excited 5.9 MeV/u Xe and 13.2 MeV/u Au ions

Träbert

Doerfert

Granzow

et al. 1995

Z Phys D - Atoms, Molecules and Clusters

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N= 3, An=O transitions in Na-like ions have been observed and the resonance level lifetimes have been measured by time-resolved spectroscopy of foil-excited ion beams of Xe (Z = 54) and Au (Z = 79). Other lines in the same wavelength range are identified with n=3, An=O transitions in Ne-, Mg-, and Al-like ions. Wavelengths and transition rates for these new lines are compared to the available theoretical data. A number of experimental problems are discussed.

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Accurate wavelengths for resonance lines of the Cu i and Zn i isoelectronic sequences for Pd to Dy

Cited by 31 publications

References 21 publications

Spectra of Ga-Like to Cu-Like Praseodymium and Neodymium Ions Observed in the Large Helical Device

Spectra of Ga-Like to Cu-Like Praseodymium and Neodymium Ions Observed in the Large Helical Device

Relativistic many-body calculations of the energies ofn=4states along the zinc isoelectronic sequence

Time resolved EUV spectroscopy on foil-excited 5.9 MeV/u Xe and 13.2 MeV/u Au ions

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