TR-LIF LIFETIME MEASUREMENTS AND HFR+CPOL CALCULATIONS OF RADIATIVE PARAMETERS IN VANADIUM ATOM (V i)
نویسندگان
چکیده
Radiative lifetimes of 79 levels belonging to the 3d34s4p, 3d44p, 3d34s5p, 3d45p, and 3d34s4d configurations of V i with energy from 26,604.807 to 46,862.786 cm−1 have been measured using time-resolved laser-induced fluorescence (TR-LIF) spectroscopy in laser-produced plasma. The lifetime values reported in this paper are in the range of 3.3–494 ns, and the uncertainties of these measurements are within ±10%. A good agreement was obtained with previous data. HFR+CPOL calculations have been performed and used to combine the calculated branching fractions with the available experimental lifetimes to determine semi-empirical transition probabilities for 784 V i transitions.
منابع مشابه
Atomic data for radiative transitions in the third spectra of rhodium (Rh III), palladium (Pd III) and silver (Ag III)
A new set of radiative decay rates in doubly ionized rhodium (Rh III), palladium (Pd III) and silver (Ag III) has been computed by means of the pseudo-relativistic Hartree–Fock method including core-polarization effects (HFR+CPOL) and semi-empirical optimization of radial energy parameters. For these three ions, oscillator strengths and transition probabilities for spectral lines appearing in t...
متن کاملLifetime measurements and transition probabilities in Mo II
Lifetimes have been measured using time-resolved laser-induced fluorescence for 16 odd levels in the doublet, quartet and sextet systems of Mo II, with energies in the range 48 000– 61 000 cm−1. Absolute transition probabilities and oscillator strengths are determined for 110 UV and visible transitions (208 < λ < 485 nm) from a combination of experimental lifetimes and theoretical branching fra...
متن کاملDysregulation of Autonomic Nervous System in Chagas’ Heart Disease Is Associated with Altered Adipocytokines Levels
BACKGROUND Chagas disease (CD) induces autonomic dysfunction and inflammatory activity, which may promote metabolic abnormalities. We studied metabolism and his correlation with Autonomic Nervous System (ANS) and inflammation in CD. METHODS AND RESULTS Sixty subjects were divided into 4 groups: control group (CG), IF (indeterminate form) group; ECG group (ECG abnormalities and normal left ven...
متن کاملHydrometeor classification with a C-band polarimetric radar
The scattering of electromagnetic energy by hydrometeors forms the basis of radar meteorology. Knowledge of hydrometeor types can be very important in particular applications. The occurrence of mixed-phase conditions, especially the melting of snow and ice, impacts on the accuracy of radar-based precipitation estimation and the discrimination of rain and hail is often very important in severe w...
متن کاملEffects of diet-induced obesity and voluntary wheel running on the microstructure of the murine distal femur
BACKGROUND Obesity and osteoporosis, two possibly related conditions, are rapidly expanding health concerns in modern society. Both of them are associated with sedentary life style and nutrition. To investigate the effects of diet-induced obesity and voluntary physical activity we used high resolution micro-computed tomography (μCT) together with peripheral quantitative computed tomography (pQC...
متن کامل