The study of dominant physical processes in the time-resolved optogalvanic spectra of neon
| العنوان: | The study of dominant physical processes in the time-resolved optogalvanic spectra of neon |
|---|---|
| المؤلفون: | M. Riaz, M. Anwar-ul-Haq, Shaukat Mahmood, M A Baig |
| المصدر: | The European Physical Journal D. 36:1-9 |
| بيانات النشر: | Springer Science and Business Media LLC, 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Physics, Neon, Dipole, Dye laser, chemistry, Ionization, Metastability, Optical physics, chemistry.chemical_element, Electron, Atomic physics, Atomic and Molecular Physics, and Optics, Spectral line |
| الوصف: | We present the dominant physical processes responsible for the production of the optogalvanic signal in the spectra of neon. We have investigated the effects on the optogalvanic signal by scanning a dye laser across the neon transitions in the DC discharge plasma. Time-resolved spectra are obtained at a fixed wavelength of the dye laser resonantly tuned to an optically allowed transition. The temporal evolutions of the signals are registered on a storage oscilloscope. Three transitions from the 3s[1/2]2 metastable state corresponding to the ΔJ = ΔK = 0, ±1 dipole selection rules have been selected to investigate the dominant physical processes responsible for the optogalvanic signals. The change in the signal amplitude as a function of the discharge current has been registered. In addition the electron collisional ionization rate parameter ratios have been determined for the transitions corresponding to dipole selection rules ΔJ = ΔK = -1, ΔJ = ΔK = 1 and ΔJ = ΔK = 0, as 1.63, 1.75 and 1.0 respectively. The effective lifetimes of the upper levels involved in the aforementioned transitions are also calculated as 62.5 μs, 31.25 μs and 12.85 μs respectively. |
| تدمد: | 1434-6079 1434-6060 |
| DOI: | 10.1140/epjd/e2005-00181-x |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a38ef30d890c60772b99a13b2f5d1efa https://doi.org/10.1140/epjd/e2005-00181-x |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........a38ef30d890c60772b99a13b2f5d1efa |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14346079 14346060 |
|---|---|
| DOI: | 10.1140/epjd/e2005-00181-x |