Dear Peter, The help file says that: ==== Unit 2: Contains the background profile data obtained in a 'no sample' experiment - otherwise unused. Data in format 10(12,16), 10(l1,17) OR 10I8. The experimental conditions used to collect the background pattern are assumed to be identical to those used for the sample ====
Moreover, this file has to be inside the same folder as your data file with the same name and with *.bck extension. Although I haven't tried it myself, this might be of help! Regards, Nikos Kourkoumelis http://users.uoi.gr/nkourkou/powdll.htm -----Original Message----- From: Peter Y. Zavalij [mailto:[EMAIL PROTECTED] Sent: Thursday, April 10, 2008 1:33 AM To: rietveld_l@ill.fr Subject: RIETICA question Does anyone know how to tell Rietica to account for background (from sample holder, film, etc.) stored in separate file? Rietica can do it but there is no much about how to set it up in the manual. Thanks, Peter Zavalij
