- #1
zhanghe
- 44
- 2
Hello everyone,
I met a problem in XRD. Using theta-2theta mode I can not find crystalline peaks in my thin film sample because most within it is amorphous phase. However, I get three clear peaks using the glacing mode,i.e. theta-theta mode. Now i want to calculate the grain size in terms of Scherrer equation, May I use the FWHM from the glacing angle results?
they told me the FWHM is not correct in the glacing mode,because the silt is varying bla bla.., so I think, the Beta in Scherrer equation is the change between crystalline powder and my sample, maybe I should measure a crystalline powder sample in glacing angle, and then comparing them, I can get the grain size, Am I right?
zhanghe
I met a problem in XRD. Using theta-2theta mode I can not find crystalline peaks in my thin film sample because most within it is amorphous phase. However, I get three clear peaks using the glacing mode,i.e. theta-theta mode. Now i want to calculate the grain size in terms of Scherrer equation, May I use the FWHM from the glacing angle results?
they told me the FWHM is not correct in the glacing mode,because the silt is varying bla bla.., so I think, the Beta in Scherrer equation is the change between crystalline powder and my sample, maybe I should measure a crystalline powder sample in glacing angle, and then comparing them, I can get the grain size, Am I right?
zhanghe