MAR 07, 2018 6:00 AM PST

What is Non-Destructive Testing

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
OCT 31, 2019
Cell & Molecular Biology
OCT 31, 2019
Researchers Explore the Electricity-Conducting Power of Proteins
Researchers have known that proteins can insulate electrical flow, but their power as conductors has only recently been recognized....
NOV 19, 2019
Space & Astronomy
NOV 19, 2019
Can We Terraform Mars?
Space agencies and commercial space companies are taking the idea of colonizing Mars very seriously. There’s just one problem: the red planet isn&rsq...
NOV 21, 2019
Chemistry & Physics
NOV 21, 2019
Pharmacist Who Debunked False Vit C Claim Honored by the Maddox Prize
"Sense about Science" is a UK-based NGO that promotes the public understanding of science. Every year the organization gives the John Maddox Priz...
DEC 08, 2019
Space & Astronomy
DEC 08, 2019
NASA's Parker Solar Probe Reveals Telling Clues About Our Sun
NASA’s Parker Solar Probe is currently the closest spacecraft to the Sun today. Being this close gives the spacecraft an unprecedented opportunity to...
FEB 06, 2020
Health & Medicine
FEB 06, 2020
Scientists Found a Safe BPA Alternative
BPA—bisphenol A—is an industrial chemical used in a wide range of everyday consumer products. From food and beverage can linings and storage co...
FEB 25, 2020
Chemistry & Physics
FEB 25, 2020
The Art of Kinetics
The conservation of energy is a universal rule in our universe.  This principle of nature dictates that in an isolated system, the total amount of ene...
Loading Comments...