Register to reply

How to measure an emission spectrum?

by gravenewworld
Tags: emission, measure, spectrum
Share this thread:
gravenewworld
#1
Oct1-05, 04:43 PM
P: 1,408
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?
Phys.Org News Partner Chemistry news on Phys.org
Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices
Rubber meets the road with new ORNL carbon, battery technologies
Breaking benzene
GCT
#2
Oct1-05, 07:09 PM
Sci Advisor
HW Helper
GCT's Avatar
P: 1,769
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: 1,408
Awesome, thanks!


Register to reply

Related Discussions
Emission/absorption spectrum General Physics 1
Emission spectrum? Introductory Physics Homework 5
Emission spectrum problem Introductory Physics Homework 5
Tuning an emission spectrum General Physics 1
Why is the Emission Spectrum the same every time? Atomic, Solid State, Comp. Physics 15