Hyperfine structure measurements of neutral iodine atom (127I) using Fourier Transform Spectrometry
| Autor: | M.N. Deo, S.R. Vishwakarma, Himal Bhatt, Chilukoti Ashok, B.K. Ankush |
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| Rok vydání: | 2018 |
| Předmět: |
Radiation
Materials science 010504 meteorology & atmospheric sciences 01 natural sciences Atomic and Molecular Physics and Optics Spectral line Fourier transform spectroscopy Excited state 0103 physical sciences Quadrupole Physics::Atomic Physics Emission spectrum Atomic physics Spectral resolution 010306 general physics Hyperfine structure Magnetic dipole Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 205:19-26 |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/j.jqsrt.2017.10.004 |
| Popis: | We report the hyperfine Structure ( hfs ) splitting observations of neutral iodine atom (II) in the 6000 – 10,000 cm −1 near infrared spectral region. The measurements were carried out using a high-resolution Fourier Transform Spectrometer (FTS), where an electrodeless discharge lamp (EDL), excited using microwaves, was employed as the light source and InGaAs as the light detector. A specially designed setup was used to lower the plasma temperature of the medium so as to reduce the Doppler width and consequently to increase the spectral resolution of hfs components. A total of 183 lines with hfs splitting have been observed, out of which hfs in 53 spectral lines are reported for the first time. On the basis of hfs analysis, we derived the magnetic dipole and electric quadrupole coupling constants, A and B respectively for 30 even and 30 odd energy levels and are compared with the values available in the literature. New hfs values for 5 even and 4 odd levels are also reported here for the first time. |
| Databáze: | OpenAIRE |
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