PowderX can not convert GSAS files into three col format files. It can only
convert some data format into GSAS data file.
PowderX can be downloaded
from:
http://www.ccp14.ac.uk/ccp/web-mirrors/powderx/Powder/Please
read the attached Word document, which is the agreement for using PowderX. Any
new user should sign this form and mail it to me. Please note the PowderX is
free of charge only for academy users.
To obtain the PowderX and/or the
password quickly, you can first fill in the form and send back it to me by
e-mail.
Please do not forget to send the signed form by post mail
later.
Best wishes
Cheng Dong
----- Original Message -----
Sent: Thursday, March 04, 2004 5:03 PM
Subject: checking diffractometer in capillary
mode
Dear All,
I wonder which is the best way to check the
performances of our lab diffractometer, working in capillary (transmission)
mode. Our machine is a Bruker Vario with primary Ge monochromator
and PSD detector. As a reference sample I prepared a 0.4 mm capillary
carefully filled with SRM 676 alumina, and I use just this to check the zero
and the intensity response of the instrument before the data collections.
Moreover I periodically (3-4 months) perform an overnight scan up to 120° to
get the instrumental profile coefficients to be subsequently used in my GSAS
refinements.
What is your opinion on this topic?
I would be moreover (very) interested
in comparing scans of the SRM 676, made in the same experimental
conditions, taken on instruments similar to ours, so to have an idea of
our "absolute" intensities and FWHMs. Anybody interested?
Best
regards Natale Perchiazzi
Dipartimento di Scienze della Terra
Università
di Pisa
via S.Maria 53
56126 Pisa,
Italia
PXRegist.doc