All Questions
3 questions
1
vote
0
answers
51
views
How is black body radiation from sample eliminated when measuring absorption coefficient?
I wonder how absorption spectra of a sample (e.g. gas with some $CO_2$ absorbing strongly at $\approx 15\mu m$) is measured by IR spectroscopy, thereby having in mind the following arrangement, ...
- 1,391
5
votes
0
answers
1k
views
Absorption coefficient from HITEMP or HITRAN [closed]
How to calculate the absorption coefficient (for radiation) from HITEMP or HITRAN databases?
Or where can I find some tables or plots for the absorption coefficient?
- 273
2
votes
1
answer
3k
views
Blackbody radiation and Spectral Lines [duplicate]
Blackbody radiation is thermal radiation from a hot object emitted over a continuous range of wavelengths. But why are spectral lines, lines (i.e., you only get certain wavelengths when an element is ...
- 1,352