Re: Rietveld: U,V,W

2008-12-01 Thread Jim Cline
Hi, Self Citation: "NIST Standard Reference Materials for Characterization of Instrument Performance" Industrial Applications of X-ray Diffraction Ed by F. H. Chung & D. K. Smith, pp 903-917. A pdf is available; email to request. In this I outline how I use SRM 660 (it was 660 in 2000, then

Re: RE: Rietveld: U,V,W

2008-12-01 Thread Davor Balzar
synchrotron and neutron) can be found at http://mysite.du.edu/~balzar/s-s_rr.htm. Davor BalzarUniversity of Denverwww.du.eduwww.du.edu/~balzar - Original Message - From: "Maxim V. Lobanov" <[EMAIL PROTECTED]> Date: Sunday, November 30, 2008 10:37 pm Subject: RE: Riet

RE: Rietveld: U,V,W

2008-11-30 Thread Leonid Solovyov
Brian wrote: >U and W should be instrumental constants that will not change with >sample, >while V can have both an instrumental and a >residual stress component. Maxim wrote: >as far as I understand, the strain broadening term should have FWMM~theta >>dependence, i.e. Lorentzian Y in "standard"

RE: Rietveld: U,V,W

2008-11-30 Thread Maxim V. Lobanov
Toby [mailto:[EMAIL PROTECTED] Sent: Monday, December 01, 2008 5:21 AM To: May, Frank Cc: rietveld_l@ill.fr Subject: Re: Rietveld: U,V,W What is the correct procedure for refining U,V,W? It is my understanding that those parameters are a function of instrument geometry. Does one use a standard m

Re: Rietveld: U,V,W

2008-11-30 Thread Mingtao Li
Why my reply went to the author's personal mail box? I am very sorry for that. Now I am hunting for a standard reference material to determine the profile parameters of our instrument X'pert Pro. -- Mingtao Li State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Powe

Re: Rietveld: U,V,W

2008-11-30 Thread Brian H. Toby
What is the correct procedure for refining U,V,W? It is my understanding that those parameters are a function of instrument geometry. Does one use a standard material to determine U,V,W and then fix their values for the instrument you're using?or do the values of U,V,W change dependin

Rietveld: U,V,W

2008-11-30 Thread May, Frank
To all: What is the correct procedure for refining U,V,W? It is my understanding that those parameters are a function of instrument geometry. Does one use a standard material to determine U,V,W and then fix their values for the instrument you're using?or do the values of U,V,W change dep