<HTML><BODY>Hello everyone<br><br>I have a question concerning Debye-Waller factor in the component PowderN. What should I substitude here? <br>In manual it's written that DW factor is exp(-2W). Is this W the same as thermal parameter B, which is connected with<span class="text_mailru_css_attribute_postfix" style="color: #000000;" data-mce-style="color: #000000;" lang="en"> root-mean square diversion from equilibrium of atoms <u^2>?<br>How should I take into account dependence of DW on scattering vector q (i.e. on scattering angle)? <br><br>Thanks in advance<br>Dmitrii Shapiro (PNPI, Gatchina)</span></BODY></HTML>