How many techniques are there in radiography?

How many techniques are there in radiography?

The four most commonly utilized digital radiography techniques in the oil & gas and chemical processing industries are computed radiography, direct radiography, real-time radiography, and computed tomography.

What is radiographic technique factors?

Primary Factors. The primary exposure technique factors the radiographer selects on the control panel are milliamperage, time of exposure, and kilovoltage peak (kVp). Depending on the type of control panel, milliamperage and exposure time may be selected separately or combined as one factor, milliamperage/second (mAs).

What is the basic principle of radiography techniques?

It is based on the principle that radiation is absorbed and scattered as it passes through an object. If there are variations in thickness or density (e.g. due to defects) in an object, more or less radiation passes through and affects the film exposure.

What is a radiographic examination in medical terms?

A test that uses radiation or other imaging procedures to find signs of cancer or other abnormalities.

What is the purpose of a technique chart?

The technique chart is an invaluable resource for a radiographer. Its purpose is to provide a consistent method of choosing the proper exposure factors to create a diagnostic radiograph.

What is radiographic density?

Radiographic Density – the overall amount / degree of darkening on a radiograph. In routine radiography, the useful range of density varies from 0.3 to 2.0 density. The density below 0.3 is due to the density produced by the base and by some fog on the film (base plus fog).

What is the purpose of radiographic testing?

Radiographic Testing (RT) is a non-destructive testing (NDT) method which uses either x-rays or gamma rays to examine the internal structure of manufactured components identifying any flaws or defects. In Radiography Testing the test-part is placed between the radiation source and film (or detector).

What are the applications of radiographic testing?

Applications of Industrial Radiography and X-ray testing

  • Aerospace – ex. Castings.
  • Medical Devices – ex. Stints.
  • Automotive – ex. Piston head.
  • Military & Defense – ex. Ballistics.
  • Manufacturing – ex. Pre-production qualification of part.
  • Packaging – ex. Structural integrity/leak or failure analysis or package.

Who uses radiography?

Radiographers are allied health professionals who take x-rays and other medical images to assist doctors in diagnosing diseases and injuries. They are also known as medical imaging technologists. A radiographer does your scan.

What is a radiograph?

An image produced by radiation, usually by x-rays, and recorded on a radiosensitive surface, such as photographic film, or by photographing a fluoroscopic image. Also called radiogram, shadowgraph, skiagram, skiagraph. To make a radiograph of.

What is the meaning of radiographic positioning terminology?

Radiographic positioning terminology. Radiographic positioning terminology is used routinely to describe the position of the patient for taking various radiographs. Standard nomenclature is employed with respect to the anatomic position.

What is the technique for placement of a patient in radiography?

Patient placement Patient is seated in a true lateral position with head in neutral position. Technique selection kVp 70 to 80; mAs 15 to 30 SID 72″ Central ray placement Central ray is angled 90 degrees, perpendicular to film entering transverse process of C1 (the mastoid tip). Collimation To film size vertically.

How do you name a radiographic view?

As reference, radiographic views are named by the body part being examined and either the direction the x-ray beam is passing through the body (anteroposterior [AP]) or the portion of the body part touching the grid for oblique angles of the body (right posterior oblique [RPO]) (Fig. 3-4). FIG 3-4Radiographic views.