1. An overview of EDS

What is EDS?

The standard method for figuring out the elemental content and makeup of materials under a scanning electron microscope (SEM) is called energy dispersive X-ray spectroscopy, or EDXS. The technique is more frequently known as Energy Dispersive Spectroscopy (EDS), however EDXS is virtually invariably abbreviated.

It offers details regarding a sample’s elemental composition.

How Does EDS Operate?

Typical X-rays are released from the material when an electron beam interacts with it.

To identify and quantify the elements present, EDS detectors measure these X-rays.

2. Hardware and Components for EDS

Configuration of the SEM-EDS System:

• SEMs are equipped with EDS detectors.

Important elements consist of:

• X-ray detector: Catches radiation that is released.
• pulse processor: Transforms X-ray pulses into energy spectra.
• Software: Determines elements by analyzing spectra.

3. Steps for Elemental Analysis

1.Preparing the Sample:

• Samples have to be conductive or covered in a thin coating of conductivity.
• Steer clear of pollution.

2. Acquisition:

• Choose your interest regions (ROIs)
• Get EDS spectra out of these ROIs.

3. Spectral Analysis

• Determine which peaks in a spectrum correspond to which elements.
• Calculate concentrations of elements.

4. Mapping

Produce elemental maps that illustrate the distribution of data in space.

4. Common Uses for EDS

Material Characterization:

• Ascertain the composition of polymers, minerals, alloys, and ceramics.
• Determine any stages or contaminants.

Failure Analysis:

• Examine broken surfaces, corroded items, or electronic parts for failure analysis.
• Identify the underlying causes of errors.

Geological Studies

• Determine the mineral content of rock samples by analysis.
• Examine the processes of geology.

5. Guidelines for EDS Analysis That Works

• Calibration: Using recognized standards, calibrate the EDS system on a regular basis.
• Background Subtraction: Clear the spectra of any background interference.
• Quantification: Apply established standards or standard-free techniques.

At MTS India, we bring cutting-edge SEM/EDS analysis services to empower industries with precise insights into material composition and properties. Our state-of-the-art equipment and expert analysts ensure accurate results for diverse applications.