Euro N.D.T can offer its clients various types of Radiography Inspection depending on their requirements. Most common applications carried out are Subsea, Topside, Onshore and Offshore.
Techniques: X-Ray, Gamma Ray, Digital & Computersied.
Radiography is a well established technique which gives a permanent record and is widely used to detect internal flaws in weldments and castings and to check for mis-constructions in assemblies. The source of radiation is either an X-ray tube or a pellet of radioactive material emitting gamma-radiation. X-ray equipment is usually described by the electrical voltage across the X-ray tube: thus, 300 kV x-rays. The higher the voltage, the greater the penetrating power of the radiation :industrial X-ray equipment ranges from about 20 kV to 20 MV and the most powerful equipments can be used to radiograph up to 500mm (20) stell.
Computed Radiography (CR) replaces digital films by Photo-Stimulable Phosphor (PSP) Imaging Plates (IP) that work on the principle of photo-luminiscence. According to this principle, when radiations fall on the DIP, the phosphor of fluorobromide gets ionized and the energies get stored in local electrons according to the radiation level received by each electron. The plate is then put into a scanner. When scanner light falls on the plate, the electrons go into lower energy levels thereby emitting light. This light is used to measure and compute the digital image. Once, the image is read and stored, the DIP is erased by exposing it to high intensity white light. This way, a DIP can be reused 1000 of times. However, actual reusability depends on handling the DIP.