What is XRF PMI?

What is XRF PMI?

X-ray Fluorescence (XRF) is the most commonly used Non-Destructive Test (NDT) method offering the user a portable handheld analyzer that delivers fast, accurate results. Handheld XRF analyzers use an x-ray tube to emit an x-ray beam into a sample, exciting the electrons and displacing them from the inner shell.

How does XRF PMI work?

Two types of PMI X-ray Fluorescence (XRF) instruments work by exposing a sample to be measured to a beam of X-rays. By measuring the intensity and characteristic energy of the emitted X-rays, the analyzer can provide qualitative and quantitative information regarding the composition of the material being tested.

What is a portable XRF?

Handheld XRF analyzers work by measuring the fluorescent (or secondary) X-rays emitted from a sample when excited by a primary X-ray source. These “fingerprints” are distinct for each element, making handheld XRF analysis is an excellent tool for quantitative and qualitative measurements.

Can XRF detect magnesium?

Portable XRF technology has improved dramatically over the last decade to the point that your average handheld instrument can measure from uranium, all the way down to magnesium. Improvements in the lighter elements is primarily down to the development of SDD (silicon drift detectors).

Can PMI detect carbon content?

The device scans the metal material and identifies its key elements. However, it cannot detect carbon and some lighter elements and is not suitable for identification of pure carbon steel materials.


Positive material identification (PMI) is an essential non-destructive testing (NDT) method utilized to verify that supplied materials conform to the proper standards and specifications. The material testing can be performed on-site before the parts go into the production process or for final products.

What are the benefits of using a portable XRF machine?

Oil and gas exploration: Portable XRF analyzers are valuable for upstream exploration and production, offering rapid, on-site chemical analysis of rocks, cuttings, and cores that can be used for identifying formations and determining mineral composition of the rock.

Which elements Cannot be detected by XRF?

And by the way, if anyone tells you portable XRF instruments cannot measure heavy elements, like gold (Au), well, they most certainly can. They just might not be able to measure them to the levels that you need. It’s all about detection limits (and heterogeneity), but more on that next time.

Which is the best Olympus alloy PMI analyzer?

The DELTA Handheld XRF is the Olympus Alloy PMI Analyzer of choice for these adverse PMI testing conditions. in high ambient temperatures; on heated, in-service components; and

What can I do with an Olympus XRF analyzer?

Olympus offers the Xpert series of benchtop XRF analyzers for customers that require the power and ease-of-use of our handheld instruments in a self-contained, closed-beam instrument. The Xpert series of analyzers includes our popular GoldXpert for precious metals analysis as well as other models for consumer goods analysis and RoHS applications.

When to use X-ray fluorescence for PMI?

X-ray fluorescence (XRF) is an effective and easy-to-use method for component PMI to confirm that you’re using the right metal or alloy. Handheld XRF is portable, requires minimal sample preparation, and gives you an answer quickly.

What are VANTA handheld XRF analyzers used for?

Vanta ™ handheld XRF analyzers provide fast, accurate chemistry and alloy identification in PMI applications including piping, valves, welds, components, and pressure vessels. Vanta analyzers are essential for: Ensuring the correct alloy components are installed in critical locations.