Environmental SEM

Introduction to the Quanta FEG ESEM 200 (Environmental Scanning Electron Microscope)

The uniqueness of the Environmental SEM is that it allows the user to take unprepared and/or non-conductive samples, vary the environment through a range of pressures, temperatures and gas-compositions, and still be able to perform high resolution imaging and elemental analysis.

Capabilities

• Secondary electron imaging in a gas or water vapor to least 3.5 nm
• Imaging of wet samples with no dehydration
• Observation of the sample in its natural environment
• No sample preparation required even for insulating samples
• X-ray analysis on non-conductive samples
• Observation of dynamic experiments at high temperatures in a gas environment.
• Digital imagingreduce time-to-market and time-to-profit

Applications

• Sample Heating [amb. to +400^oC - resistive heater]
• Sample Cooling - wet [+/- 20^oC from amb.]
• Sample Exposure ¨C 0 to 98% Relative Humidity
• Sample Exposure - Different gases
• MicroInjection onto sample - liquids and gases
• Energy dispersive spectroscopy (EDS) with full xray mapping
• Mechanical testing

Specifications

Resolution:	3.5 nm @ 30 kV	High, low and ESEM vacuum mode
	15 nm @ 3 kV	Low vacuum mode
Magnification	7x ¨C 1,000,000x	High and low vacuum mode
Accelerating Voltage:	200 V to 30 kV
Stage Movement	X, Y, and Z = 50 mm

Reservation Policies

ESEM is located in Building 89 (Martin Hall), Room 0122. The charge per hour is $70, which does not include training. Approximately 2 hours of training is required. Canceled reservations within 24 hours or less will be charged for the first hour.

Point of Contact:

Bhanu Sood (bpsood@calce.umd.edu)
Phone: 301-405-5316

Click here to make reservation