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Thermo Scientific Quattro ESEM

eagle-i ID


Resource Type

  1. Scanning electron microscope


  1. Resource Description
    The Thermo Scientific Quattro Environmental Scanning Electron Microscope (ESEM) is fully equipped with extensive analytical and in situ capabilities. The instrument’s field emission gun (FEG) allows for high resolution imaging of samples with available detector options that include the standard Everhart Thornley detector (ETD) and low vacuum detectors for secondary electron imaging; a retractable directional backscatter detector for phase and channeling contrast; and a retractable STEM detector for ultra-high-resolution imaging of electron-transparent samples. The Quattro can be operated over a wide range of accelerating voltages (200 V – 30 kV) and currents (1 pA – 200 nA), with a maximum secondary electron imaging resolution of 3.0 nm at 1 kV, or 0.8 nm at 30 kV when operating in STEM mode. Low vacuum imaging is possible in the available ESEM mode up to 4000 Pa (30 Torr), along with other tunable ‘real world’ chamber conditions, including control over temperature, humidity, and partial pressure of reactive gases. These tunable parameters allow for convenient analysis of samples that are charging, outgassing, or otherwise not high-vacuum compatible. Take advantage of the Quattro's diverse array of capabilities and become a CEMAS User. In situ Characterization Heating stage: Temperatures achievable up to 1100 °C, EBSD compatible up to 900 °C. Cooling stage: Peltier cooling stage for analysis of samples at temperatures down to -25 °C and up to 100 % relative humidity in ESEM mode. Compatible with secondary, backscatter, or STEM imaging. CryoMAT stage: Temperature controlled stage capable of use down to -190 °C, compatible with the QuickLoader load lock system to avoid venting the entire chamber for sample exchange. Kammrath-Weiss tensile stage: Tensile and compression module with testing capabilities up to 5 kN, heating to 800 °C, and EBSD compatibility. Analytical Capabilities EDAX Octane Elect super 70mm2 EDS:High count silicon-drift detector with a thin silicon nitride window for detection of light elements. EDAX Velocity EBSD camera: Newly designed CMOS sensor capable of 4,500 indexed points per second and located coplanar with the EDS detector. Horiba H-Clue Cathodoluminescence detector: Wide spectral range cathodoluminescence multidetector system for imaging and spectroscopy from the UV to NIR. STEM imaging of sputtered gold at 30 kVAdditional Features QuickLoader: Load lock designed for fast sample transfer with no need to vent and pump the entire SEM chamber. Compatible with STEM, CryoMAT, and general SEM imaging. Electrical Feedthroughs: Multiport for electrical signals (up to 7) allowing additional electrical stimuli to be applied to the samples and novel detection schemes. Fast Beam Blanker: Electrostatic beam modulation for fast diversion of the electron beam to lower beam exposure to sample. Rise/fall times of <20 ns and a maximum blanking rate of 1 MHz. MAPS: Software for automated image collection and stitching multiple images at high resolution over large areas. Cryocleaner: Remove contamination and achieve a higher vacuum level than normal operating condition. NavCam: Optical image of stage for ease of sample navigation on multiple samples or large areas. Beam Deceleration: Stage bias of -4000 V to +50 V allowing for increased resolution at low landing energies (down to 20 eV) and provide additional signal of backscatter electrons at low landing energies.
  2. Additional Name
    Thermo Scientific Quattro ESEM
  3. Contact
    Center for Electron Microscopy and Analysis (CEMAS) Requests
  4. Access Restriction(s)
    Access hours & Scheduling: Must schedule time in advance to use resource or with specific hours.
  5. Access Restriction(s)
    Cost: Access is available at a set cost to others.
  6. Website(s)
  7. Part of Collection
    Office of Research Collection
  8. Part of Collection
    Institute for Material Research
  9. Part of Collection
    The Ohio State University Comprehensive Cancer Center Collection
  10. Part of Collection
    The Microscopy Shared Resource (MSR)
  11. Location
    Center for Electron Microscopy and Analysis (CEMAS)
Provenance Metadata About This Resource Record

    Copyright © 2016 by the President and Fellows of Harvard College
    The eagle-i Consortium is supported by NIH Grant #5U24RR029825-02 / Copyright 2016