کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5429453 1397353 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pressure broadening and shift of the potassium D1 transition by the noble gases and N2, H2, HD, D2, CH4, C2H6, C3H8, and n-C4H10 with comparison to other alkali rates
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Pressure broadening and shift of the potassium D1 transition by the noble gases and N2, H2, HD, D2, CH4, C2H6, C3H8, and n-C4H10 with comparison to other alkali rates
چکیده انگلیسی

The pressure broadening and shift rates for the potassium D1(42P1/2←42S1/2) transition with the noble gases and 3He, H2, HD, D2, N2, CH4, C2H6, C3H8, and n-C4H10 were obtained for pressures up to 80 Torr and at a temperature of 55 °C by means of laser absorption spectroscopy. The collisional broadening rate, γL, for He, 3He, Ne, Ar, Kr, Xe, H2, HD, D2, N2, CH4, C2H6, C3H8, and n-C4H10 are 13.08, 17.46, 6.14, 19.45, 16.64, 20.02, 22.15, 19.36, 17.47, 17.78, 29.35, 26.63, 27.27, and 27.85 MHz/Torr, respectively. The uncertainty in the broadening rates is typically less than 1.6%. The corresponding pressure induced shift rates, δ, are 1.63, 6.82, −1.27, −6.44, −5.42, −6.54, −5.34, −5.10, −4.70, −6.80, −7.41, −8.32, −8.59, and −8.80 MHz/Torr with a uncertainty of less than 2.4%. A comparison with the other alkali D1 broadening cross-sections is presented.

► The unknown collisional rates for rubidium and buffer gases have been measured. ► A comparison between the broadening of Cs, Rb, K, Na, and Li has shown. ► The cross-sections and the polarizability have been compared.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 113, Issue 5, March 2012, Pages 387-395
نویسندگان
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