کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5430409 1508711 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pressure-broadening of water lines in the THz frequency region: Improvements and confirmations for spectroscopic databases.: Part I
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Pressure-broadening of water lines in the THz frequency region: Improvements and confirmations for spectroscopic databases.: Part I
چکیده انگلیسی

The self-, nitrogen- and oxygen-broadening of the J=72,5←81,8 (1.147 THz), 85,4←76,1 (1.168 THz), 74,4←65,1 (1.173 THz), 85,3←76,2 (1.191 THz), and 63,3←54,2 (1.542 THz) rotational transitions of water vapor have been experimentally and theoretically investigated in the present work, showing that the corresponding HITRAN self-broadening parameters are affected by large errors. Indeed, simple semiclassical calculations performed for more than 1500 rotational water lines with wavenumber below 1000cm-1 allow us to improve the self-broadening values reported in the HITRAN database when obtained by assuming a J dependence. On the other hand, our measurements and calculations confirm the values reported in the HITRAN database for air-broadening and shift, which are based on semiclassical computations as well. On the whole, the present investigation provides new experimental as well as theoretically improved values for self-broadening parameters of rotational lines in the THz frequency region.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issues 17–18, November–December 2008, Pages 2820-2831
نویسندگان
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