Lineshape in a laval molecular beam and pressure broadening of N2O Transition lines
Anno: 1993
Autori: Baldacchini G., Chakraborti P.K., D’Amato F.
Affiliazione autori: Bhabha Atom. Res. Ctr., MDRS, Bombay 400085,India; CRE Frascati,ENEA, dipartimento sviluppo tecnol. punta, area INN, CP 65,I-00044 Frascati, Italy
Abstract: We have measured the absorption profile of N2O transitions belonging to the nu2 vibrational band at 589 cm-1 in order to characterize the gas flow in a pulsed Laval molecular beam. It is found that the shape of the transition is almost Lorentzian near the nozzle exit while it clearly approaches a Gaussian profile far away from the nozzle throat. After measuring the spectral profiles for the same transition in a cell at different pressures, we were able to quantify the molecular density along the Laval stream. We have also measured the pressure-broadening parameters of few transitions of the nu2 band.
Giornale/Rivista: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume: 49 (4) Da Pagina: 439 A: 447
Parole chiavi: Laval molecular beam; Pressure broadening; N2ODOI: 10.1016/0022-4073(93)90109-UCitazioni: 2dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
