Re: [EXTERNAL] Mounting Sample on High Temperature XRD Ribbon Heater

i36> From: Julian Richard Tolchard Sent: Thursday, July 25, 2019 10:40:26 AM To: Payzant, Andrew ; Mibeck, Blaise Cc: rietveld_l@ill.fr Subject: RE: [EXTERNAL] Mounting Sample on High Temperature XRD Ribbon Heater Andrew, I agree completely. Pt does definitely ha

Re: [EXTERNAL] Mounting Sample on High Temperature XRD Ribbon Heater

Thank you -- I will try nitrogen then! From: Payzant, Andrew Sent: Thursday, July 25, 2019 9:08 AM To: Mibeck, Blaise Cc: rietveld_l@ill.fr Subject: Re: [EXTERNAL] Mounting Sample on High Temperature XRD Ribbon Heater STOP!!! The tantalum foil should not

Mounting Sample on High Temperature XRD Ribbon Heater

I am looking for advice on how to prepar a HTXRD sample (mounting techniques, stage preparation, etc...). The ribbon heater is tantalum (brand new). The sample contained ammonium di-hydrogen phosphate. The atmosphere is air. I hope to reach at least 1100C, but have had the ribbon break before 7

XRF and XRD best practice...

Hello all, I use Rietveld primarily for quantitative phase analysis of rock samples. We collect XRF and XRD data on our samples. Is there a best practice for using these data together? Or a recognized method or procedure for evaluating the agreement between the two? Can the XRF be used to res

RE: X-ray diffraction laboratory manager position [faked-from]

Why are there so few job opportunities for people who have a Masters degree? I believe this job would be ideal for a MS who has 5 or so years of lab experience. From: rietveld_l-requ...@ill.fr [rietveld_l-requ...@ill.fr] on behalf of Simon Redfern [

RE: how to extract %wts etc... from .lst file automatically... [SEC=PERSONAL]

Thanks Max! Problem solved! Blaise -Original Message- From: AVDEEV, Maxim [mailto:m...@ansto.gov.au] Sent: Thursday, January 22, 2009 4:40 PM To: Mibeck, Blaise Subject: RE: how to extract %wts etc... from .lst file automatically... [SEC=PERSONAL] Hi Blaise, If you like I can send you

how to extract %wts etc... from .lst file automatically...

Hello, Using GSAS, I now have hundreds of *.lst files - I have done my refinements with quantitative phase analysis being my goal. I could go into each .lst file and cut and paste the %weights and sigmas for each phase into a spread sheet. I could try to write a program that does this

RE: Quantitative analysis

I am learning QPA and am worried about PO. I wonder why sample spinning isn't discussed more. I am luckily able to barrow time on a newer diffractometer with a sample spinner. Does this reduce PO? Or completely eliminate it? There is a set up variable in GSAS for whether you are s

Beginer problems, difficulty charecterizing our diffractometer...

I am re-learning GSAS to bring Rietveld to my department (for the first time). We have an old Phillips Xpert. I am trying to refine a quartz standard to acquire my profile and instrument parameters for this instrument and have yet to get my Chi^2 below 500. The instrument is not in my direc

RE: Question about Genles...

Thanks!!! -Original Message- From: Davide Levy [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 09, 2008 12:51 PM To: Mibeck, Blaise Subject: R: Question about Genles... Dear Blaise, that means that your parameters are not appropriate (generally too big) for format

Question about Genles...

Regarding GSAS: Most of the time when I make inappropriate changes in my refinement sequence, the refinement in genles diverges. Occasionally, however, I see Chi^2 = 1.#QNB and sum((shift.esd)^2) line out at 1.#R. I have been assuming that I messed up my refinement order, or allowed incomp

RE: Portable XRD

I am relearning GSAS right now. I was pretty good at it in graduate school (DOS-GSAS). I have PC-GSAS running and everything works -- but I am having trouble getting use to the program being in the windows environment. I know this is a stupid request: can I still get the dos version? Or