Simon Fraser University Department of Archaeology X-Ray Fluorescence Laboratory


Welcome to the SFU Archaeology XRF Lab! It provides a range of analytic services related to a range of materials including obsidian, other igneous rock (basalt, andesite, dacite, rhyolite), murock (slate, shale and others), ceramics and anything else of interest. This webpage provides further information related to our instruments, pricing information, submission of samples, turnaround time and current research by people at SFU Archaeology. 


About The Lab

Our instrument is a Bruker Tracer III-V+. It is equipped with a Si-Pin detector and has a resolution of 190eV at 10,000 counts per second. It has an X-ray tube with a Rhodium target and a maximum voltage of 40 kV. A series of filters and options to alter instrument power settings can cater analysis for a wide range of materials. A vacuum system aids in the detection of light elements. This instrument has the capabilities of a bench top model, but with the convenience of also being hand held for use in the field. Software allows for live time spectral displays and many calibrations can be applied to various materials for inter-lab and instrument comparison. Our lab is also equipped with a 20 position automated sample changer manufactured by DeWitt Systems that allows for batch processing.


About The Lab

Our instrument is a Bruker Tracer III-V+. It is equipped with a Si-Pin detector and has a resolution of 190eV at 10,000 counts per second. It has an X-ray tube with a Rhodium target and a maximum voltage of 40 kV. A series of filters and options to alter instrument power settings can cater analysis for a wide range of materials. A vacuum system aids in the detection of light elements. This instrument has the capabilities of a bench top model, but with the convenience of also being hand held for use in the field. Software allows for live time spectral displays and many calibrations can be applied to various materials for inter-lab and instrument comparison. Our lab is also equipped with a 20 position automated sample changer manufactured by DeWitt Systems that allows for batch processing.

About The Lab

 

The instrument used is a Bruker Tracer 5i that has an 8 um Beryllium (Be) instrument window, can detect elements from Sodium (Na) to Uranium (Ur), but analyzes elements from Magnesium (Mg) to Uranium (Ur).  It is equipped with a 20mm2 Silicon Drift Detector with <140eV@250,000 counts per second and has a Rhodium (Rh) thin window X-ray tube that can generate x-rays from 6-50kV and 4.5-195uA. The instrument power settings for obsidian analysis for obsidian and fine grained volcanic (FGV) is 40kV and 43.5 uA and all samples were run for a total of 60 seconds.

Prices

XRF Analysis per sample

$50

Reporting per Project

$50

Rapid Turnaround per sample

$75

Geologic Source Materials

Free

Student research

Contact rudyr@sfu.ca

Results of all projects will be sent electronically unless otherwise desired

 

 

Research

 

We are particularly interested in research projects of interest to the Northwest Coast, Plateau, and Sub-Arctic culture regions. Specifically: The examination of obsidian, basaltic rock or other lithic sources, the study of museum collections or other collections that have interesting artifacts, improvement of our lab and analytical capabilities, partnership or collaboration on projects and data sharing. 

 

Obsidian, Fine grained volcanic rock, slate and ochre reference library.