TESCAN S8252G RAMAN-SEM/FIB

TESCAN S8252G RAMAN-SEM/FIB

TESCAN S8252G RAMAN-SEM/FIB

Location

CoorsTek 001-M

Contact

David Diercks – ddiercks@mines.edu

 

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Instrument Details

The TESCAN S8000G is an ultra-high resolution variable pressure Schottky field emission scanning electron microscope/Ga+ focused ion beam instrument for imaging and sample milling and W, Pt, and Co deposition (GIS) capabilities. It is equipped with WITec in situ confocal Raman imaging at 532 nm and 785 nm excitation wavelengths using a 100x objective, NA = 0.75.  The SEM/FIB has an Everhart-Thornley detector, two retractable backscatter detectors (one water-cooled), an in-beam multi-detector, in-beam axial detector, and secondary ion detector.  The instrument is also capable of 3-D imaging using any of the detectors.

Nanoscale compositional analysis may be performed with an EDAX Octane Elect Plus (30mm2) energy dispersive X-ray spectroscopy (EDS) system with APEX software.

In situ manipulation for TEM foil extraction is performed using a SmarAct nano-manipulator, with 1 nm positioning resolution and an electron flood gun for charge neutralization during ion beam milling of non-conductive samples.

The Gatan Murano heating stage allows for in situ analysis from room temperature to 950° C.

  • SEM Resolution: 0.9 nm at 15 kV (at 1 mm WD)
  • Ga Source Focused Ion Beam (FIB) – 0.5 kV to 30 kV, up to 100nA
  • Optical resolution: diffraction limited lateral typ. 430 nm @ 532 nm excitation wavelength
  • 532 nm, 75 mW diode-pumped solid state laser
  • 785 nm, 125 mW diode laser
  • Fully motorized, heavy-duty compucentric 5-axis cradle stage (X=256mm, Y=152mm, Z=52mm, Rotation=360°, Bidirectional tilt = –3° to 60°, 8kg weight capacity

This instrument was acquired through the support of the National Science Foundation (DMR-1828454)

Specimen Prep Capabilities in the Electron Microscopy Lab

GENERAL

  • Slow Speed Diamond Saws
  • EVACTRON CombiClean Decontaminator

SEM

  • JEOL IB-0910CP Cross-Section Polisher
  • Hummer IV Sputtering System (Au/C Coater)

TEM

  • 3mm Foil Punch
  • South Bay Model 350 3mm TEM Disk Cutter
  • Gatan Model 600 Duo Mill Ar ion mill
  • Fischione Electropolishing System