X-ray Diffractometer (XRD)

Location

Bruker D8 Advance XRD and workstation

JGB5.106

Overview

Installed in 2008, the Bruker D8 Advance provides routine, qualitative and quantitative mineral identification in rock powders. The D8 XRD is now driven by automation software with integrated pattern analysis by Bruker EVA and Topas using the ICDD PDF-2 Minerals database.

Samples

Samples for XRD must be carefully ground rock powders (no gritty lumps) or fine size fractions separated by centrifugation or gravity settling. Ideally, the mineral phases of interest should be present in amounts of at least several percent.

Sample holder, detector and X-ray source

Otherwise, some method of concentrating the phase will be necessary.

Consultation Protocol

All users should fill out the ‘Request to use the Bruker D8 Advance XRD‘ form. The form can be submitted to the lab manager by email, mailbox (in EPS), or in person. Any questions regarding the form should be directed to the lab manager.

Data analysis1

Note that we do have software and database capabilities to perform data analysis tasks. Data analysis and interpretation is not routine. As such, the end user is responsible for their own interpretations. Those end users desiring assistance with data analysis and interpretation can enlist the help of lab personnel as a research collaboration. Extensive support materials for data analysis are available in the lab. Users may request access.

Rates

Internal (UT-Austin): $110/shift
External-Academic: $370/shift
External-Commercial: $855/shift

Scheduling Time on the XRD

Contact James Maner (jlmaner87@utexas.edu) to discuss analytical goals and sample preparation before reserving time on the XRD.
Use the “Scheduling and Rate Structure” tab on the right hand side of the page for information on scheduling instrument time.

1Section from http://nanogeochem.oucreate.com/powder-x-ray-diffraction-lab-2/