Course Outline

ICC – Certification for Radiological Equipment Specialist (CRES) Pretesting Course

This course is now offered online for select dates. Get RSTI quality training online with live interactive courses . Our online training courses are live and instructor-led, allowing students to interact and engage in real-time. Please email for more info.


The International Certification Commission CICC) offers independent certification testing in the areas of biomedical, Clinical Lab, and Radiology. The radiological endorsement is called Certification for Radiological Equipment Specialist CCRES). The test consists of 150 multiple choice questions divided into 5 sections. Up to 6 hours are allowed for completing the exam. This course is designed to teach the experienced service professional the requisite knowledge necessary to successfully pass the CRES test. The subjects include radiation physics, radiation safety,anatomy, physiology, x-ray equipment use, CDRH compliance testing, electronics, and troubleshooting. The CRES certification testing is given 4 times a year in over 100 cities. An application can be acquired by calling the ICC at: (703) 525-4890, ext. 207. Depending on the testing site, the application must be submitted up to 8 weeks in advance.


Attendees must possess the knowledge acquired through attendance of RSTI’s Phase I, II, and III Certificate Series courses or the equivalent electronics and service experience. The ICC typically requires a minimum of 2 years of radiological experience before taking the CRES test.


At the conclusion of this course, attendees will have successfully completed the 5 major areas of study needed for CRES certification and will be fully prepared, along with their experiential learning , to pass the CRES test.

  • Anatomy and Physiology.
  • Radiologic physics and safety.
  • Electricity and electronics.
  • Radiologic equipment applications.
  • Technical problem solving.

Tuition: $1795*

Course Length: 1 Week

CEU's Awarded: 4 CEU’s


  • Oct 26-30 - eLearning
  • Apr 26-30 - eLearning
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Course Outline

Day 1
  • Radiation safety
  • Radiographic physics
    • The electromagnetic spectrum
    • X-ray production
      • Bremsstrahlung radiation
      • Characteristic radiation
      • Characteristics of the x-ray beam
  • Radiographic system
    • Production of x -rays
    • Evaluation of factors affecting image quality
    • The formation of the x-ray image- focal spot, filtration, collimation, and grids
    • Film, screens, and processing
  • Aerial image formation
    • Photoelectric effect
    • Compton effect
    • Beam quality
  • Intensifying screens effects
  • X-ray film
    • Sensitometric properties
    • Hurter and Driffield Curves
    • Transmittance
  • Use and evaluation of technique charts
  • Heat unit calculations -msingle/multiple exposures
  • X-ray film processing – effects of time and temperature on image quality
  • Other x-ray properties and parameters
    • Capacity current
    • Space charge effects
    • Tomograghic image evaluation
    • Grid ratio
Day 2
  • Image quality terminology
    • Density
    • Contrast
    • Sharpness
    • Detail visibility
    • Resolution
  • Factors affecting image quality
  • CDRH Compliance testing
    • Reproducibility
    • Linearity
    • Max R
    • KV, mA, time, mAs accuracy
    • Actual versus indicated SID
    • Accuracy of x-ray field size
    • Light field definition
    • Minimum source to object distance
    • Half value layer
  • NCRP guidelines
  • National Electrical Code guidelines
  • Image intensifier
    • Construction and operation
    • Factors affecting image quality
    • Common I.I. problems
    • Typical image intensifier input doses for fluoro, photospot, and cine
    • Magnification factor / inverse square law
    • Minification
    • Modulation transfer function
  • TV camera and video
    • Vertical and horizontal deflection circuits
    • Vertical and horizontal amplifier circuits
    • Video waveform analysis
Day 3
  • Anatomy terminology – prefixes and suffixes
  • Anatomy systems, organs, cells, diseases
    • Endocrine
    • Respiratory
    • Integumentary
    • Digestive
    • Musculoskeletal
    • Reproductive
    • Excretory
    • Circulatory
    • Neural
  • Physiology
    • Normal functions of cells and organs
    • Abnormal functions of cells and organs
    • Anabolism and catabolism
    • Cardiac waveform analysisdiastolic, systolic, and blood flow
  • Patient positioning and terminology
Day 4
  • Electronic laws and equations
    • Kirchoff’s voltage and current law
    • Norton analysis
    • Thevenin’s analysis
    • Lenz’s law
    • Boolean equations
  • Electronic circuits
    • Transistor biasing
    • Series and parallel waveform analysis
      • Resistive, capacitive, and inductive
      • Combination circuits
    • Operational amplifier circuits
    • Digital circuits
    • Vacuum tube circuits
  • Formulas and calculations
    • Impedance calculations
    • Phase shift calculations
    • Time constants
    • Transistor gain calculations
    • Resonant frequency calculations
    • Conductor impedance calculations
    • Hysteresis losses
  • Conversions
    • Decimal to binary and binary to decimal
    • Voltage, current, and power gain for AC and DC circuits
Day 5
  • Technical problem solving
  • Waveform analysis
  • Common problems
  • System review
  • Final exam! sample CRES questions
  • Course critique
  • For information on travel expenses and hotel accommodations please see our full cover package information.
  • Course Registration

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