Register to reply 
How to find FWHM? 
Share this thread: 
#1
Jan3111, 10:21 AM

P: 2

Hi,
I've been searching on google for minutes but couldn't find out a consistent way so far. I mean, it seems everybody has something to say about it :) My data consists of pixel values (ADU's). I am writing a script to obtain fwhm of seeing disk. By definition of the gaussian curve, i should only calculate the standart deviation of these values theni get fwhm=stdev*2.355 . Am I correct? Or should i obtain a gaussian fit then i calculate fwhm as its name suggests? Thanks in advance, bugra 


#2
Feb111, 08:53 PM

Sci Advisor
HW Helper
P: 2,481

If you do it both ways, and the answers are different, what does that tell you about the fitting algorithm that you used?



#3
Feb911, 07:03 AM

P: 2

for multiple sources on the same frame, should fwhm be same?



Register to reply 
Related Discussions  
Sodium Iodide Detector (NaI) FWHM and applied Voltage  Electrical Engineering  2  
Can Raman Spectrum evaluate by FWHM?  Atomic, Solid State, Comp. Physics  0  
FWHM of a gaussian function  Set Theory, Logic, Probability, Statistics  1  
Converting laser fwhm bandwidth in m to hz  Advanced Physics Homework  3  
FWHM of radioactive sources confusion  Advanced Physics Homework  4 