Academic Catalogs

RADT A105: Radiation and Imaging Safety

Course Outline of Record
Item Value
Curriculum Committee Approval Date 12/02/2020
Top Code 122500 - Radiologic Technology
Units 1 Total Units 
Hours 27 Total Hours (Lecture Hours 13.5; Lab Hours 13.5)
Total Outside of Class Hours 0
Course Credit Status Credit: Degree Applicable (D)
Material Fee Yes
Basic Skills Not Basic Skills (N)
Repeatable No
Grading Policy Standard Letter (S)

Course Description

A study of the effects of radiation in humans and the principles of protection as applied to radiography. Introduction to health-physics instrumentation with a study of radiation control regulations. PREREQUISITE: Acceptance into the OCC Radiologic Technology Program (Cohort Restriction). Transfer Credit: CSU.

Course Level Student Learning Outcome(s)

  1. Explain the basic concepts of radiation safety and apply them in the laboratory and clinical setting.
  2. Students will be able to identify contraindications for MR.

Course Objectives

  • 1. Explain the biological effects of radiation of humans
  • 2. Identify the major methods of reducing patient and operator exposure to ionizing radiation
  • 3. Identify the maximum permissible doses for operators of equipment
  • 4. Identify health physics instruments and for which purpose each is intended
  • 5. Identify the California laws governing radiographers and operation of X-ray equipment
  • 6. Practice the principles of radiation protection techniques on radiographic phantoms.
  • 7. Perform laboratory experiments to demonstrate the basic fundamentals of radiation protection including time, distance and shielding.
  • 8. Identify the radiation shielding structural regulations and requirements
  • 9. Identify the associated risks for patients and technologists in the MRI environment.
  • I SCAN SKILLS IDENTIFICATION
  • I. 1. Competencies
  • I. 2. Foundation Skills

Lecture Content

Introduction and orientation to the course and the facilities.     Introduction to the lab     X-ray room     Roentgen rays, interaction of x-rays with humans     Ionizing radiation and matter     Energy levels     Types of interactions     Importance     Detection     Radiation dosimetry     Roentgen     RAD     REM     Radiation protection/interactions     Justification for X-ray procedures     Responsibility     Biological damage potential     Medical radiation exposure     Probability of photon interactions     Attenuation     4 processes     Radiation quantities, units and limits.     Historical evolution of quantity units     Exposure     Absorbed dose     Equivalent     Traditional and SI units/conversion factors     Limits for exposure     Regulatory agencies     Legal dose limits     ALARA concept     Protection philosophy     Biological effects and basic cell biology.     Basic cell components     Radiation biology <     Ionization     Linear energy transfer     Relative biological effectiveness     Molecular, cellular effects     Radio sensitivity     Basic principles of protection for patient and operator.     Effective communication     Immobilization     Beam collimation     Filtration     Shielding     Exposure factors/processing     Occupationally exposed personnel     Structural shielding/tube housing     Fluoro procedures/equipment     Mobile exams     Distance - inverse square law     California State Department Syllabus on Radiography     Radiography utilization     Statistical overview     Calif code or regulations (title 17)     Factors influencing patient dose State Syllabus Radiation protection cont.     Factors influencing patient dose cont.     Tube and equipment     Half valve layer     Phototiming     Source-to-image-receptor distance     Patient and patient positioning     Human anatomical considerations     Motion     State syllabus cont. repeat films (retakes)     Equipment and accessory failure or error

Lab Content

Factors influencing patient dose cont.     Tube and equipment     Half valve layer     Phototiming     Source-to-image-receptor distance     Patient and patient positioning     Human anatomical considerations     Motion     Equipment and accessory failure or error     Supervisor responsibilities     Repeat studies     X-ray personnel error     How to minimize     Retake analysis  Radiation protection considerations in areas outside of routine departmental procedures     Pediatric radiography     Shielding     Artifacts/motion     Computed tomography     Operation principles     Collimation/protection     Mobile radiographic equipment     Structural provisions     Shielding/protection

Method(s) of Instruction

  • Lecture (02)
  • DE Live Online Lecture (02S)
  • Lab (04)
  • DE Live Online Lab (04S)

Instructional Techniques

Lecture and application of ideas Individual and small group laboratory exercises Video and laboratory demonstration

Reading Assignments

Students will spend approximately 3 hours per week on reading from assigned text and materials.

Writing Assignments

Students will spend approximately 1 hour per week on writing assignments, including: 1.  Some short essay questions in examination or quiz format 2.  Laboratory individual or group projection summations

Out-of-class Assignments

Students will have 2 - 4 hours of outside activites to complete per week.

Demonstration of Critical Thinking

Periodic quizzes    Written examinations    Laboratory assignments requiring written summation of projects    Attendance and participation in lab and lecture

Required Writing, Problem Solving, Skills Demonstration

Some short essay questions in examination or quiz format Laboratory individual or group projection summations

Eligible Disciplines

Radiological technology: Any bachelors degree and two years of professional experience, or any associate degree and six years of professional experience. Radiological technology: Any bachelors degree and two years of professional experience, or any associate degree and six years of professional experience.

Textbooks Resources

1. Required Statkiewicz, Mary. Radiation Protection in Medical Radiography, ed. St. Louis: Mosby, 2014 2. Required State syllabus . Syllabus on Fluoroscopy Radiation Protection, ed. Department of Public Health, Radiologic Health Branch State of California, 0 Rationale: . 3. Required Bushong, S.. Radiologic Science for Technologists, latest ed. St. Louis: Elsevier/Mosby, 2015

Other Resources

1. Computer Instructional Programs