Hi all,

 

This thread  gives me a chance to ask a question I've had for a long
time.  I've heard about these large chambers where you can mix your
sample with a binder and have it fall out as small powder spheres to
avoid preferred orientation in Bragg-Brentano geometry.  But, my samples
are mostly between 10 and 50 milligrams in size. Does anyone know a way
to mount them without preferred orientation?  Thank you!

 

                                                - Kurt

 

 

________________________________

From: Whitfield, Pamela [mailto:[EMAIL PROTECTED] 
Sent: Thursday, May 08, 2008 9:16 AM
To: Kurt Leinenweber
Subject: RE: Preferred orientation?

 

It's one of the classic needle-shaped materials - it gives lovely SEM
images if you can avoid charging

 

From: Kurt Leinenweber [mailto:[EMAIL PROTECTED] 
Sent: May 8, 2008 12:12 PM
To: Whitfield, Pamela
Subject: RE: Preferred orientation?

 

HI Pamela/all,

 

This sounds intriguing.. why is wollastonite a problem in capillary
transmission?  Is it needle-like?

 

                                                            - Kurt

 

________________________________

From: Whitfield, Pamela [mailto:[EMAIL PROTECTED] 
Sent: Thursday, May 08, 2008 7:55 AM
To: rietveld_l@ill.fr
Subject: RE: Preferred orientation?

 

I do that myself but it doesn't always help much if you've got something
like wollastonite! :-)

 

From: Martin [mailto:[EMAIL PROTECTED] 
Sent: May 8, 2008 10:51 AM
To: rietveld_l@ill.fr
Subject: RE: Preferred orientation?

 

Forget all that long winded stuff. Just collect the data on capillary
transmission geometry and avoid all (well, most of) the fuss.
 
Martin Vickers

________________________________

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