کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5429453 | 1397353 | 2012 | 9 صفحه PDF | دانلود رایگان |

The pressure broadening and shift rates for the potassium D1(42P1/2â42S1/2) 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, â1.27, â6.44, â5.42, â6.54, â5.34, â5.10, â4.70, â6.80, â7.41, â8.32, â8.59, and â8.80 MHz/Torr with a uncertainty of less than 2.4%. A comparison with the other alkali D1 broadening cross-sections is presented.
⺠The unknown collisional rates for rubidium and buffer gases have been measured. ⺠A comparison between the broadening of Cs, Rb, K, Na, and Li has shown. ⺠The cross-sections and the polarizability have been compared.
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 113, Issue 5, March 2012, Pages 387-395