Radiography

Radiography Techniques and Services

 

Spective Technical Services uses exceptional Radiography techniques and services to maintain the integrity of the weld in butt joints in piping, structural, tank, and pressure vessel work.

Internal Pipeline Crawlers

Spective Technical Services uses internal pipeline crawlers for whenever there is a need to verify the integrity of a pipeline’s interior. The advanced moving piece of equipment coupled with an expert team of technicians helps to determine inconsistencies in pipe diameter or bends in the pipeline that means they can be fixed promptly

External X-Ray and Gamma Ray Equipment

The Cobalt 60 is an electromagnetic energy that is used to pass through carbon steel and other pipeline materials as part of non destructive testing (NDT). It allows the identification of wall densities, pinpoint the damage and corrosion, and highlight any unknown weakness that could’ve been caused in the welding process.

Digital Radiography

Spective Technical Services offers three types of digital radiography: Direct radiography, Computed digital radiography, and Film digitization.

Internal Pipeline Crawlers

Direct Radiography

Direct digital radiography is a filmless technique that uses real-time image capture and a rigid semi-conductor array matrix.

Film Digitization

Film digitization is the digital scanning of an existing film, it involves converting physical film images (or even paper reports) into digital images to be stored online. This is to archive images to reduce the risk of losing them.

Computed Digital Radiography

Computed digital radiography is another filmless technique that utilizes exposure (conventional industrial radiography techniques) and image capture (flexible phosphor-coated imaging screen):

  • Incident radiation strikes flexible phosphor-coated plate
  • Latent image created by electron entrapment process
  • Image processing via high-resolution laser
  • Photo-Stimulated Luminescence (PSL) (visible light) proportional to input energy of radiation
  • PSL converted to digital image

X-Ray Film

Close-Proximity Radiography

Spective Technical Services’ LO-RAD Radiographic System is necessary for projects that require the use of radiography without disrupting the construction of a project. LO-RAD close-proximity radiography can be used among many scenarios, for example:

·       Serious onsite safety risks

·       Work windows aren’t open long enough for radiography or completion of scope of work

·       Radiography to be conducted without withdrawal of work force

·       Short-term contracts requiring small barricades for radiography

 

Close-proximity radiography is advantageous as it provides the least amount of disruption. Due to being in a small controlled area, there is a reduction of no-go areas – this also means offices and control rooms can continue to function as standard. The LO-RAD system needs a 2-4 meter demarcation zone; as opposed to the 40-50 meters required from the lr 192 with lead collimator. It does this by concentrating the radiation beam toward the subject and thereby removing undesirable scatter, deflection, and bounce.

With being in a controlled environment there is a higher standard of safety – removing the need for safety patrols and there is an even loser dose to the radiographer. It also provides improved sensitivity and film contrast making it a better alternative to standard radiography.