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Re: [sdpd] calibration problems with Silicon+gsas
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<p>Dear Dr. Jean-Marc LE MEINS
<br>
<br>
Thanks for your attention at first.
<br>
The answers to your questions are below:
<br>
<br>
1)linear PSD was used with curved Ge(111) monochromator, and the omega was fixed;
<br>
2)the geometry information was (approximately)<wbr>: Detector slit size-0.02 mm, Sample-detector distance(L)-<wbr>16 cm, Width of the detector slit(2H)-4 cm, Size of beam on sample(2S)-8 mm;
<br>
3)the sample configuration was transmission with two foils as usual;
<br>
4)the PSD step size was between 0.3-0.5, i cannot exactly tell about that;
<br>
5)for the calibration files, unfortunately, the last calibration was done about 2 years ago, so i don't think it will help....Anyway, one can read them via <a href="http://www.physik.uni-augsburg.de/~lujun/last-calib.zip";>http://www.physik.<wbr>uni-augsburg.<wbr>de/~lujun/<wbr>last-calib.<wbr>zip</a> . About the next calibration, i have already made an appointment with related personnel and it will be done by us on next mondy.
<br>
<br>
i hope these information can help. We will appreciate possible diagonosis from you very much.
<br>
<br>
<br>
<br>
Faithfully
<br>
Jun Lu
<br>
----------
<br>
Lst. Prof. Lijie Qiao
<br>
Department of Materials Physics and Chemistry
<br>
University of Science and Technology Beijing
<br>
100083 Beijing
<br>
P.R. China
<br>
<a href="http://www.instrument.com.cn/ilog/handsomeland/";>http://www.instrume<wbr>nt.com.cn/<wbr>ilog/handsomelan<wbr>d/</a>
<br>
<br>
Lst. Prof. Loidl and Lunkenheimer
<br>
Experimental Physics V
<br>
Center for Electronic Correlations and Magnetism (EKM)
<br>
University of Augsburg
<br>
Universitaetsstr. 2
<br>
86159 Augsburg
<br>
Germany
<br>
<a href="http://www.physik.uni-augsburg.de/exp5";>http://www.physik.<wbr>uni-augsburg.<wbr>de/exp5</a>
<br>
<br>
----- Original Message -----
<br>
From: Jean-Marc LE MEINS
<br>
To: <a href="mailto:sdpd%40yahoogroups.com";>sdpd...@yahoogroups.<wbr>com</a>
<br>
Sent: Thursday, June 12, 2008 12:01 PM
<br>
Subject: Re: [sdpd] calibration problems with Silicon+gsas
<br>
<br>
<br>
Dear Lujun,
<br>
<br>
I apologize if I did not let attention enough about your recording
<br>
conditions (not yet had a look to your raw data):
<br>
1°) Your work with a STADI-P with a linear PSD ? Could you please let us
<br>
know its counting aperture ?
<br>
2°) What is your sample configuration: capillary (diameter ?) classical
<br>
Debye-Scherrer or transmission between two milar foils ?
<br>
<br>
By having a look on your background details, as Pr. Reinhard Kleeberg
<br>
already told you: it shows strange periodical oscillations.
<br>
My question is: what is your PSD step size ? 0.5° 2theta ?
<br>
<br>
Could it please be possible to know a little more on your PSD
<br>
calibration file ? Do you have an access to the *.cal and *.lcl files ?
<br>
Of course, I mean your current calibration files (those ware used for
<br>
you Silicon data collection).
<br>
<br>
Thank you for you informations
<br>
<br>
Best,
<br>
<br>
JM
<br>
____________<wbr>_________<wbr>_________<wbr>_________<wbr>____
<br>
<br>
Dr. Jean-Marc LE MEINS
<br>
Ecole Nationale Supérieure de Chimie
<br>
LMPC - UMR CNRS 7016
<br>
3 rue Alfred Werner
<br>
F-68093 Mulhouse CEDEX
<br>
<br>
Tel: +33 (0)3 89 33 68 82
<br>
FAX: +33 (0)3 89 33 68 85
<br>
____________<wbr>_________<wbr>_________<wbr>_________<wbr>____
<br>
<br>
[Non-text portions of this message have been removed]
<br>
<br>
<br>
<br>
<br>
<br>
[Non-text portions of this message have been removed]<br>
<br>
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