Maricopa Community Colleges  MRT145   19954-20032 
Official Course Description: MCCCD Approval: 04/22/03
MRT145 19954-20032 LEC
LAB 		4 Credit(s)
1 Credit(s) 		4 Period(s)
3 Period(s)
Radiographic Technique
Principles related to radiographic exposure. Silver, image formation, qualities of radiographs, geometry of image formation, film construction, use of grids, screen and tubes included. Application of radiographic principles. Prerequisites: MRT130.
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MCCCD Official Course Competencies:
 
MRT145   19954-20032 Radiographic Technique
1. Define specific radiographic terms. (I)
2. Explain silver image formation and film construction. (II)
3. Demonstrate the use of radiographic grids. (III)
4. Demonstrate the use of radiographic screens. (IV)
5. Explain the construction of and demonstrate the use of radiographic tubes. (V)
6. Manipulate the four qualities and produce acceptable radiographs. (VI)
7. Produce films to demonstrate the radiographic effects of kV, mAs, distance, screen and grids. (VII)
8. Produce films to demonstrate the geometry of image formation. (VIII)
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MCCCD Official Course Outline:
 
MRT145   19954-20032 Radiographic Technique
    I. Radiographic Terms
      II. Silver image formation and film construction
          A. Latent image formation
          B. Sensitization specks
          C. Production of silver image
          D. Parallax
          E. H and D curve
        III. Grids
            A. History
            B. Types, use and construction
            C. Centering problems
            D. Evaluation of grid performance
            E. Care of grids
          IV. Screens
              A. Types, use and construction
              B. Phosphor sounds
              C. Care of screen
              D. Line-spread function
              E. Modulation transfer function
            V. Radiographic tubes
                A. History
                B. Target materials, diameter, speeds, angle, mass and emissivity
                C. Factors affecting tube life
                D. Recent developments
                E. Focal spot size
                F. Guides to X-ray tube selection
                G. Use
              VI. Qualities of a radiograph
                  A. Density
                  B. Contrast
                  C. Detail
                  D. Distortion
                  E. Absorption coefficients
                  F. Absorption Variable
                  G. Inverse sq. law.
                  H. Other
                VII. Photoradiographic factors
                    A. Radiographic effects of kilvoltage
                    B. Radiographic effects of milliamperseconds
                    C. Radiographic effects of distance
                    D. Radiographic effects of screens
                    E. Radiographic effects of grids
                    F. Stereo and cast radiography
                    G. Other
                  VIII. Geometry of image formation
                      A. Forms of unsharpeness
                      B. Penumbra, Umbra
                      C. Geometric factors
                      D. Types of unsharpness
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