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Self-broadening coefficients in the ν2 +2ν3 band of 13CH4 at temperatures from 296 K to 200 K
Journal of Quantitative Spectroscopy and Radiative Transfer ( IF 2.3 ) Pub Date : 2020-08-05 , DOI: 10.1016/j.jqsrt.2020.107247
L.N. Sinitsa , V.I. Serdyukov , A.P. Scherbakov , I.L. Baranovskaya

The 13CH4 absorption spectra in the range between 7400 and 7600 cm−1 have been recorded at 4 temperatures from 296 K to 200 K using a Fourier transform spectrometer at pressures from 1 to 300 hPa, and at a 0.01 and 0.03 cm−1 spectral resolution. A 60 cm multipath cell with a path length of 1920 cm and a 220 long cm low temperature cell were used, which provided a threshold sensitivity to absorption of the order of 10−6 cm−1. The parameters of the Hartmann-Tran and Voigt lineshapes (line positions, intensities, self-broadening coefficients, self-shift coefficients and temperature dependences of the half width coefficients) were determined for the strongest transitions of the 13CH4 ν2 +2ν3 band.



中文翻译:

自加宽系数在ν 2 +2ν 3频带的13 CH 4在温度为296 K至200K的

已经使用傅里叶变换光谱仪在1至300 hPa的压力以及0.01和0.03 cm -1的压力下,在296 K至200 K的4个温度下记录了7400至7600 cm -1范围内的13 CH 4吸收光谱。光谱分辨率。使用了路径长度为1920 cm的60 cm多路径电池和220 long cm的低温电池,这为吸收提供了10 -6  cm -1数量级的阈值灵敏度。确定了Hartmann-Tran和Voigt线形的参数(线的位置,强度,自增宽系数,自移系数和半宽度系数的温度依赖性),以用于最强过渡。13 CH 4 ν 2 +2ν 3频带。

更新日期:2020-08-05
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