MAR 07, 2018 6:00 AM PST

What is Non-Destructive Testing

WRITTEN BY: Daniel Duan

Non-Destructive Testing (NDT) include a wide range of analysis techniques that use electromagnetic radiation, sound wave, and other signals to assess the properties of a material, component or system without causing apparent physical damage.   

Take medical X-ray for example, it is a well known NDT method in medicine. In general, most procedures in radiology (such as MRI, ultrasound, CT, etc.) are known as non-invasive diagnostic methods, meaning that no puncture of the patient's body is required for the diagnostic purpose.

In different industries, NDT methods are routinely used where a failure of a component could have a catastrophic consequence, such as in fuel piping, transportation, building structures, and hoisting equipment.

In manufacturing, welds are commonly used to join two or more metal parts. Often due to many factors, a crack may appear in the joint and welders would need to use NDT techniques like industrial radiography, CT, and ultrasonic testing to check for cracks in the metal products.

Because of their short wavelengths and deep penetrating power, gamma ray and X-ray are among the most commonly used electromagnetic radiation in different NDT applications. 

Source: IAEA via Youtube
Featured image: portable X-ray generator. Credit: Wikipedia

About the Author
  • Graduated with a bachelor degree in Pharmaceutical Science and a master degree in neuropharmacology, Daniel is a radiopharmaceutical and radiobiology expert based in Ottawa, Canada. With years of experience in biomedical R&D, Daniel is very into writing. He is constantly fascinated by what's happening in the world of science. He hopes to capture the public's interest and promote scientific literacy with his trending news articles. The recurring topics in his Chemistry & Physics trending news section include alternative energy, material science, theoretical physics, medical imaging, and green chemistry.
You May Also Like
DEC 27, 2020
Cell & Molecular Biology
Using Antibodies & Oligonucleotides to Control Specific Reactions
DEC 27, 2020
Using Antibodies & Oligonucleotides to Control Specific Reactions
Antibodies are naturally used by the body to bind targets on pathogens and neutralize them, and these specific interacti ...
JAN 27, 2021
Chemistry & Physics
Air purifiers may increase the spread of viral transmission, not hinder it
JAN 27, 2021
Air purifiers may increase the spread of viral transmission, not hinder it
A recent study published in Physics of Fluids, from AIP Publishing, sheds new light on the pros and cons of air pur ...
JAN 28, 2021
Chemistry & Physics
Changing the game to enhance the efficiency of carbon capture systems
JAN 28, 2021
Changing the game to enhance the efficiency of carbon capture systems
In a report published recently in the journal Cell Reports Physical Science, researchers from MIT describe an elabo ...
FEB 19, 2021
Chemistry & Physics
Ultraviolet TV for animals - and what it can teach us
FEB 19, 2021
Ultraviolet TV for animals - and what it can teach us
Does your dog like watching TV with you? Chances are probably not, because dogs’ eyes see light much faster than h ...
FEB 24, 2021
Chemistry & Physics
Researchers observe streams of cold gas needed for early-universe galaxies
FEB 24, 2021
Researchers observe streams of cold gas needed for early-universe galaxies
Researchers from the University of Iowa describe breakthrough observations of streams of cold gas that they say could ha ...
MAR 09, 2021
Chemistry & Physics
Cobalt-free cathode paves the way for new developments in EV batteries
MAR 09, 2021
Cobalt-free cathode paves the way for new developments in EV batteries
A new development in the advancement of the electric vehicle (EV) industry has been described by Professor Byoungwoo Kan ...
Loading Comments...