Spectroscopic determination of temperatures in plasmas generated by arc torches

0475062 - ÚFP 2018 RIV US eng J - Článek v odborném periodiku
Mašláni, Alan - Sember, Viktor - Hrabovský, Milan
Spectroscopic determination of temperatures in plasmas generated by arc torches.
Spectrochimica Acta Part B: Atomic Spectroscopy. Roč. 133, July (2017), s. 14-20. ISSN 0584-8547. E-ISSN 1873-3565
Grant CEP: GA ČR(CZ) GA15-19444S
Institucionální podpora: RVO:61389021
Klíčová slova: Arc plasma torch * Optical emission spectroscopy * Temperature * Boltzmann plot
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.854, rok: 2017

Two different arc plasma torches and especially their plasma jets are studied using optical emission spectra. Results include temperatures obtained from emission lines of atoms, ions and diatomic molecules in various distances along the axes of the plasma jets. Understanding of temperature distributions is complicated mainly in the downstream turbulent regions of the jets. Several common features are found during comparison of emission spectra and corresponding temperatures. It is shown that Boltzmann plot of rotational lines of OH can serve as a good thermometer in the downstream regions of both jets. It seems that even high temperatures exceeding 6 000 K may be measured efficiently by this method.
Trvalý link: http://hdl.handle.net/11104/0271946