- #1
magic
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- TL;DR
- Need help with transition probabilities and statistical weights for nitrogen emission lines
I have Optical Emission Spectroscopy data on nitrogen's second positive system and first negative system. I would like to calculate the electron temperature using the line-ratio method, which is given as:
$$k_b T_e = (E_2 - E_1) * ( ln( \frac{I_1 \lambda_1 g_2 A_2}{I_2 \lambda_2 g_1 A_1} ) )^{-1}$$
Does anyone have any experience with this who can help me extract the data for the transition probabilities, statistical weights, and energies of the final states? All of the literature that I have found that use this method claim to have gotten this data from NIST, but searching through NIST, I cannot find any transition lines corresponding to the wavelengths of my measurements (and also the measurements that have been used in the literature either). These emission wavelengths are 380.49 nm, 375.54 nm, 371.05, 367.19 nm. Examples include: https://doi.org/10.1063/1.5048292 and https://doi.org/10.1063/1.2132514.
$$k_b T_e = (E_2 - E_1) * ( ln( \frac{I_1 \lambda_1 g_2 A_2}{I_2 \lambda_2 g_1 A_1} ) )^{-1}$$
Does anyone have any experience with this who can help me extract the data for the transition probabilities, statistical weights, and energies of the final states? All of the literature that I have found that use this method claim to have gotten this data from NIST, but searching through NIST, I cannot find any transition lines corresponding to the wavelengths of my measurements (and also the measurements that have been used in the literature either). These emission wavelengths are 380.49 nm, 375.54 nm, 371.05, 367.19 nm. Examples include: https://doi.org/10.1063/1.5048292 and https://doi.org/10.1063/1.2132514.