Scanning Electron Microscopes (SEM)

How Does a Scanning Electron Microscope Work?

A scanning electron microscope (also commonly abbreviated as SEM) uses beams of electrons to create magnified images of samples, as opposed to beams of light that a traditional microscope uses. SEMs use electrons that are bounced off near the surface region of a sample. Because the wavelength of electrons is notably smaller than that of light, the resolution of SEMs is greatly superior to that of a light microscope.

What Are Scanning Electron Microscopes Used For?

Because the SEM can magnify a sample up to 500,000 times its normal size and determine its chemical makeup, scanning electron microscopes have a wide range of applications. They are used for quality control in both the pharmaceutical and semiconductor industries, sample comparisons in forensics, diagnostics in medical labs, and in research labs to determine the composition of samples treated in different ways.

What Types of Scanning Electron Microscopes Are There?

Scanning electron microscopes have different kinds of signal detectors available that include back-scattered electrons (for imaging), characteristic X-rays (for determining types and amounts of elements present in the sample), transmitted electrons, and cathodoluminescence. Other variations in different scanning electron microscopes include availability of low or high vacuum mode and imaging options for bright field samples and/or dark field samples.

Check out this article "Integrated SEM Workflow Creates Powerful 'Nano-lab' " to see more ways in which SEM can be a valuable tool for your lab.


CompanyJEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.JEOL USA, Inc.
ItemJSM-IT710 High Resolution Large Chamber SEMJAMP-9510F Field Emission Auger MicroprobeJCM-7000 NeoScope Benchtop SEMJXA-iHP200F Field Emission Electron Probe Micro-AnalyzerJXA-iSP100 Electron Probe Micro-Analyzer
Catalog NumberJSM-IT710JAMP-9510FJCM-7000JXA-iHP200FJXA-iSP100
Price
DescriptionHigh Resolution Large Chamber SEM

The JSM-IT710HR Field Emission SEM is a compact, versatile Schottky Field Emission SEM that delivers the next level of intelligent technology for high spatial resolution imaging and analysis.

Our unique in-lens field emission gun and advanced electron optics
... Read More
The JAMP-9510F offers the highest spatial resolution available in an Auger microprobe: (min. probe diameter of 3nm SEI; 8nm for Auger analysis). Employing a low-aberration condenser lens (in which an electrostatic field and a magnetic field are superposed), combined with a patented "in-lens' ... Read MoreThis 4th generation Neoscope incorporates advanced technology and functions that make it simple for users at any skill level to obtain outstanding SEM images and elemental analysis results in minutes. It is equipped with a large chamber, high and low vacuum modes, secondary and backscatter electron ... Read MoreResearch grade EPMA that provides both high imaging resolution and analytical resolution with a very high and stable probe current for optimum analytical performance.A new GUI provides a simplified work flow called "Easy EPMA" with built-in software and graphic-driven procedures for a broad range of... Read MoreResearch grade EPMA that provides both high imaging resolution and analytical resolution with a very high and stable probe current for optimum analytical performance. This new microprobe has a new SEM and EDS user interface (GUI) based on the FEG SEM's "SEM Center". It includes new algorithms for ... Read More
TypeInquireAuger microprobeInquireInquireInquire
ResolutionHigh Vacuum Mode: 1.0 nm at 20 kV, 3.0 nm at 1.0 kV.
Low Vacuum Mode: 1.8 nm at 15 kV (using Backscattered Electron Detector).
3nm(at 25kV, 10pA)InquireInquire6 nm (5 nm with LaB6 emitter)
Specimen Size200 mm diameter, 75 mm heightUp to 20 mm in diameter (5 mm thick)InquireInquireInquire
Probe CurrentFew pA to 300 nA10-11 to 2×10-7 AInquireInquireInquire
ApplicationsHigh spatial resolution imaging and analysisEnables precise chemical bonding state analysis and compositional mapping, making it indispensable for researchers and engineers in materials science, nanotechnology, and related fields.?Provides outstanding SEM images and elemental analysis results in minutesInquireHigh-resolution imaging, quantitative elemental analysis, and chemical state analysis
Detector(s)Quadrant BSEMulti-channel detectionBackscattered electron detectorInquireInquire
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