Foothill CollegeApproved Course Outlines

Biological and Health Sciences Division
R T 52APRINCIPLES OF RADIOLOGIC TECHNOLOGY ISummer 2014
3 hours lecture.3 Units

Total Quarter Learning Hours: 36 (Total of All Lecture, Lecture/Lab, and Lab hours X 12)
 
 Lecture Hours: 3 Lab Hours: Lecture/Lab:
 Note: If Lab hours are specified, see item 10. Lab Content below.

Repeatability -
Statement: Not Repeatable.

Status -
 Course Status: ActiveGrading: Letter Grade Only
 Degree Status: ApplicableCredit Status: Credit
 Degree or Certificate Requirement: AS Degree
 GE Status: Non-GE

Articulation Office Information -
 Transferability: CSUValidation: 1-21/10; 1/3/11:11/6/13

1. Description -
Introduction to elementary principles of x-ray physics, technique, and radiation protection. Intended for students in the radiologic technology program.
Prerequisites: R T 50; CHEM 25 or CHEM 30A; MATH 220.
Co-requisite: None
Advisory: None

2. Course Objectives -
The student will be able to:
  1. Identify the components and functions of the x-ray tube
  2. Understand the relationship between mAs and kVp and radiographic density and contrast.
  3. Identify the components and function of intensifying screens, radiographic film, grids and collimation devices
  4. Define radiation protection terminology
  5. Describe the operation and utilization of wet and dry processing
3. Special Facilities and/or Equipment -
  1. Multimedia classroom
  2. Classroom with viewboxes
  3. QC evaluation equipment for visual aids and practical use

4. Course Content (Body of knowledge) -
  1. Identify the components and functions of the x-ray tube (Lec)
    1. Discovery and history of x-rays
    2. Properties of x-rays electromagnetic spectrum
      1. Ionization
    3. Production of x-rays, necessary conditions:
      1. Cathode
        1. heating a filament
        2. releasing electron from filament
          1. Thermionic emission
        3. directing electron path to target
      2. Anode
        1. sudden stopping of electron at target
    4. Effects of milliamperes and kilo voltage:
      1. patients
      2. radiographic film
        1. density
        2. contrast
    5. Radiographic and Fluoroscopic x-ray units
      1. Radiographic units for routine procedures
      2. Fluoroscopic units for viewing internal organs
    6. X-ray tube
      1. History
      2. Construction of the x-ray tube and housing
        1. Molybdenum
        2. Tungsten
        3. Copper
        4. Graphite
      3. Production of x-ray
  2. Understand the relationship between mAs and kVp and radiographic density and contrast. (Lec)
    1. X-ray quantity determining factors
      1. mAs
      2. kV
      3. distance
      4. filtration
    2. X-ray quality determining factors
      1. kV
      2. filtration
    3. mAs and density
    4. kV and contrast
    5. Computing density changes using 15% kVp rule
  3. Identify the components and function of intensifying screens, radiographic film, grids and collimation devices (Lec)
    1. Intensifying screens
      1. Construction and types of screens
        1. Rare earth metals
      2. Fluorescence
      3. Phosphorescence
      4. Screen artifacts
      5. Computation of mAs conversion factors for instensifying screens
    2. X-Ray film
      1. Construction of film
        1. Emulsion
          1. Silver halide crystals
          2. Bromine
        C) Iodine
      2. Effects of milliamperes and kilovolts on film
      3. Latent image formation
        1. Photoelectrons
        2. Reduction to metallic silver
      4. Purpose of silver bromide crystals
      5. Film artifacts
    3. Grids
      1. Construction of grids
      2. Ratio factors in grid section
        1. Computation of grid ratio
        2. Computing grid conversion factors
      3. Application of grids
      4. Types of grids
    4. Collimator and cones
      1. Construction and purpose
      2. Calculation of field coverage from cones
      3. Effects on film contrast
      4. Types of apertures
    5. Filters
      1. Inherent in the x-ray tube
      2. External filtration
      3. Effects on the quality of the x-ray beam
      4. Patient protection
    6. Calipers and identification markers
      1. Measuring devices
      2. Film identification markers
  4. Define radiation protection terminology (Lec)
    1. Definition of terms:
      1. roentgen
      2. rem
      3. rad
      4. maximum permissible dose
    2. Unit conversion
    3. Computation of patient dose
    4. Patient and personnel protection
      1. Inverse square law
        1. Computation of radiation intensity
      2. Lead aprons and gloves
      3. Dosimeter (film badges)
      4. Collimators
      5. Cones
  5. Describe the operation and utilization of wet and dry processing (Lec)
    1. Darkroom construction
      1. Equipment
        1. processor
        2. chemical holding tanks
        3. film identification cameras/flashers
        4. safe lights
        5. silver recovery units
        6. handling and storage of film
    2. Processor
      1. Processing
        1. Automatic
        2. Manual
        3. Acid and base solutions
      2. Transportation & circulation system
        1. film transport system
        2. chemical circulation
      3. Artifacts
        1. Film
        2. Chemical
        3. Temperature
      4. Chemicals function
5. Repeatability - Moved to header area.
 
6. Methods of Evaluation -
  1. Quizzes
  2. Midterms
  3. Final examination
7. Representative Text(s) -
Bushong, Stewart. Radiologic Science for Technologists. 10th edition. St. Louis, MO: C.V. Mosby, 2012. ISBN-978-0323081351

8. Disciplines -
Radiologic Technology.
 
9. Method of Instruction -
May include but not limited to lecture, discussion, cooperative learning exercises, and demonstration.
 
10. Lab Content -
Not applicable.
 
11. Honors Description - No longer used. Integrated into main description section.
 
12. Types and/or Examples of Required Reading, Writing and Outside of Class Assignments -
Weekly reading assignments from text.
13. Need/Justification -
This course is required core course for the A.S. degree in Radiologic Technology.


Course status: Active
Last updated: 2014-03-20 16:42:43


Foothill CollegeApproved Course Outlines