Emission spectral line intensity

[bejoynp]

Dear all

I need to calculate the intensity of the spectral line. I have data from NIST website:
wavelength, Aki (Einstein coefficient), gi, gk, Ei and Ek energy levels.

How do i go about

Thanks for your help

 

[cragar]

Are you talking about the energy of the photon released from the atomic transition .

 

[bejoynp]

The intensity of the radiation emitted when an electron transitions from a higher energy state to lower

 

[maimonides]

(Absolute) Intensity normally refers to photons per time.
So: how many atoms are there? How are they excited? Do you know the (average) population of the levels? Do you mean relative or absolute intensitiy?

 

[pmacias]

,

I would suggest using the formula for spectral line intensity, which is given by I = (Aki * gi * Nk * hc) / (4π * λ^2). Here, Aki is the Einstein coefficient, gi and gk are the statistical weights of the initial and final energy levels, Nk is the number of atoms in the final energy level, λ is the wavelength, and hc is the product of Planck's constant and the speed of light.

To calculate Nk, you can use the Boltzmann distribution which relates the number of atoms in each energy level to the energy difference between the levels. You can also use the data from the NIST website to determine the energy difference between the levels (Ek - Ei).

Once you have all the necessary values, you can plug them into the formula and calculate the intensity of the spectral line. Keep in mind that the intensity will be dependent on the number of atoms in the final energy level, so make sure to consider this in your calculations.

I hope this helps and good luck with your calculations! Don't hesitate to reach out if you need further assistance.