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Introduction to Clinical Radiography

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VARY THE MEANING BY CHANGING THE ENDING. RADIOLOGIST -- ONE WHO ... RADIOGRAPH. PERMANENT RECORD MADE USING RADIATION. RADIO- RADIATION (usually x rays) ... – PowerPoint PPT presentation

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Title: Introduction to Clinical Radiography


1
Introduction to Clinical Radiography
  • RADI R103
  • SSII
  • Unit I Terminology Equipment

2
Introduction to Clinical Radiography
  • Unit I
  • Lecture 1 -- Terminology

3
General Definitions
  • RADIOLOGY
  • STUDY OF RADIANT ENERGY
  • RADI-O- RADIATION
  • -LOG- STUDY OF
  • -Y NOUN
  • VARY THE MEANING BY CHANGING THE ENDING
  • RADIOLOGIST -- ONE WHO
  • RADIOLOGIC -- PERTAINING TO

4
TECHNOLOGIST vs. TECHNICIAN
  • TECHNOLOGY
  • APPLIED SCIENCE
  • TECHNOLOGIST
  • ONE SKILLED IN APPLYING SCIENCE
  • TECHNICIAN (DO NOT USE THIS TERM!!)
  • ONE SKILLED IN A TASK

5
RADIOGRAPH
  • PERMANENT RECORD MADE USING RADIATION
  • RADIO- RADIATION (usually x rays)
  • GRAPH PERMANENT RECORD

6
RADIOGRAPHY
  • PROCESS OF MAKING a permanent record using
    radiation (X RAYS)
  • -Y (NOUN)
  • RADIOGRAPHER -- (person who)
  • PERSON WHO MAKES a permanent record using
    radiation (X RAYS)
  • RADIOGRAPHIC (adjective)
  • PERTAINING TO a permanent record made using
    radiation (X RAYS)

7
ROENTGENOLOGY
Wilhelm Conrad Roentgen
  • STUDY OF X RAYS
  • ROENTGEN -- DISCOVERER OF X RAYS
  • OLDER TERM INFREQUENTLY USED

8
X RAYS
  • X Rays -- An energy section in the
    electromagnetic spectrum (EMS)
  • x ray NOUN
  • x-ray ADJECTIVE
  • EMS - a continuous band of measurable energies
    that are transported as a combination of electric
    magnetic waves
  • EMS is divided into sections based on the
    characteristics of the energy level

9
EMS RADIATION
  • RADIO WAVES
  • MICROWAVES
  • INFRARED
  • VISIBLE LIGHT
  • ULTRAVIOLET
  • X RAYS
  • GAMMA RAYS
  • COSMIC RAYS

10
Electromagnetic Radiation
  • CHARACTERISTICS
  • FREQUENCY / second (Hz)
  • WAVELENGTH distance traveled (m)
  • VELOCITY "speed of light (m/s)
  • MORE.....
  • SECTIONS IDENTIFIED BY
  • energy level
  • how the energy originated
  • way energy interacts with matter

11
Electromagnetic Spectrum
  • frequency energy wavelength
  • radio microwaves low low long
  • infrared (heat)
  • visible light
  • (r-o-y-g-b-v)
  • ultraviolet
  • x gamma rays
  • cosmic rays high high short

12
X RAYS
  • ENERGY high
  • ORIGIN electron movement in atoms
  • INTERACTION ionizes atoms in matter

13
PRODUCTION OF X RAYS
  • Requirements
  • a source of fast moving electrons
  • must be sudden stop of the electrons motion
  • in stopping the electron motion, kinetic energy
    (KE) is converted to EMS energies
  • Infrared (heat), light x-ray energies

14
X-ray Production
target
electrons
anode
  • electrons move at high speed (KE)
  • collide with target on anode
  • KE of electrons converted to x rays heat
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