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How to measure an emission spectrum?

by gravenewworld
Tags: emission, measure, spectrum
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gravenewworld
#1
Oct1-05, 04:43 PM
P: 1,406
Say I have a spectrophotometer that has a grating monochromator. If I want to measure emission instead of absorption from a lamp, could I just remove the exit slit? By removing the exit slit, doesn't all of the light just hit the sample?
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GCT
#2
Oct1-05, 07:09 PM
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what kind of detector are you using? If you're using a lamp (continuum or for instance sodium lamp) and you're just measuring the atomic emission spectra than you could probably use a single channel detector to scan the wavelengths without removing the exit slit. If you're using a multichannel detector, for instance a charge couple detector, than you'll need to open up the exit slit.
gravenewworld
#3
Oct1-05, 07:52 PM
P: 1,406
Awesome, thanks!


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