Electron Probe Micro Analyzer - JEOL JXA-8900R

The electron microprobe at the DEMF possesses the following main features and capabilities:

• The instrument is fully computer automated 
• Three wavelength-dispersive spectrometers (WDS) with five different crystal types (TAP, PETJ, LDE1, LDE2, LIF) for analyzing most elements from ⁴B to ⁹²U
• One energy-dispersive spectrometer (EDS) with a solid-state Si(Li) detector
• Secondary-electron, cathodoluminescence and backscattered imaging with compositional and topographic modes
• Multi-element (up to 11) line analyses and area maps with both beam scan and X-Y stage scan modes
• On-line statistical particle analysis
• Matrix corrections with ZAF, calibration curve, and thin film methods
• Output: polaroid photographs, thermal printer, color laser printer, and FTP transfer
• Maximum sample size: 80x80 mm, but 1 inch diameter sections or 28x47mm slides preferred

Sample Preparation:

The lab is equipped with a Denton Vacuum DV-502A Vacuum Evaporator that can be used to coat samples with carbon, aluminum, etc prior to analysis. The Oral Health Research Institute and Geology Department also have various specimen preparation tools, including diamond saws, grinding and polishing wheels.