Register to reply 
Radiant energy, spectral absorption and solid angles... 
Share this thread: 
#1
Mar1813, 03:27 PM

P: 1,212

Hi
I'm trying to follow a derivation, I don't think I'm allowed to post the content (copyright) but the paper is here: http://www.sciencedirect.com/science...2240739290117M. Does anyone have access to this and know a little bit about integrating over solid angles? I've spend half a day pondering over the logic linking equations 2023. It seems they're defining a unit sphere and taking the intensity change over the surface to equal the change in number of photons inside the sphere. What I don't understand is: 1. where the log goes between eq. 20 and 21 2. where dL is relative to this sphere? Thanks for any help. Very stuck. 


Register to reply 
Related Discussions  
Spectral radiant exitance when given temperature  Introductory Physics Homework  4  
Optical absorption liquid vs solid  Atomic, Solid State, Comp. Physics  1  
Obvious question on angles and solidangles  Differential Geometry  1  
Radiant energy  Biology, Chemistry & Other Homework  7  
Radiant Energy  Introductory Physics Homework  2 