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RAD TECH A WEEK 2 RADIOGRAPHIC EQUIPMENT Fall 2010. RADIOGRAPHIC EQUIPMENT. RTA Week 2 Ch. 8 & 9 - pg (110 & 111). Radiographic Room. OBJECTIVES. IDENTIFY GENERIC COMPONENTS OF THE RADIOGRAPHIC EQUIPTMENT DESCRIBE VARIOUS PLANES OF X-RAY TUBE AND TABLE MOVEMENT. THE X-RAY TUBE.

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RAD TECH A WEEK 2 RADIOGRAPHIC EQUIPMENT Fall 2010


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slide1

RAD TECH A WEEK 2

RADIOGRAPHIC EQUIPMENT

Fall 2010

radiographic equipment

RADIOGRAPHIC EQUIPMENT

RTA Week 2

Ch. 8 & 9 - pg (110 & 111)

objectives
OBJECTIVES
  • IDENTIFY GENERIC COMPONENTS OF THE RADIOGRAPHIC EQUIPTMENT
  • DESCRIBE VARIOUS PLANES OF X-RAY TUBE AND TABLE MOVEMENT
the x ray tube
THE X-RAY TUBE
  • The X-Ray tube is the single most important component of the radiographic system. It is the part that produces the X-rays
how x rays are created see man made radiation pg 93
How “X-rays” are createdSEE: MAN MADE RADIATION (PG.93)

TO PRODUCE X-RAYS

YOU NEED:

  • A SOUCE OF ELECTONS
  • A FORCE TO MOVE THEM QUICKLY
  • SOMETHING TO STOP THEM SUDDENLY
  • (More on this week 4)
radiographic tables
Radiographic tables
  • Are designed to support the patient during a radiographic exam
  • Comfort is not the primary concern
  • Foam pads should be used if the patient will be required to be on the table for longer than 10 minutes
tabletop
Tabletop
  • Must be uniformly radiolucent to easily permit x-ray to pass through.
  • Carbon fiber is used because it is strong and very little x-ray photons are absorbed.
  • Usually tabletops are flat however some are curved
tabletop11
Tabletop
  • Most tabletops are floating, some are motor-driven
  • The brakes can be released usually by the technologist hand or foot
  • The brakes are electromagnetic
  • Floating table tops save significant amounts of time and strain on the technologist
tables
Tables
  • Tilting rooms are designed for both diagnostic and fluoroscopic work
    • Tilting models usually tilt to 90 degrees in one direction and 15 – 30 degrees in the other direction
    • Tilting models include ancillary equipment; footboard, shoulder support, handgrips, compression bands
slide19

REMOTE ROOM &

OLD CONVENTIONAL FLUORO

tube supports
Tube Supports
  • Designed to help technologists with various tube locations for creative imaging.
  • Tube suspension systems are available in 5 versions:
    • ceiling mounted, floor-to-ceiling, floor, mobile and c-arm.
tube movement
Tube Movement
  • Longitudinal
  • Transverse
  • Vertical
  • Angling or Rolling
  • Rotating
  • Telescoping
the bucky
The ‘BUCKY’
  • The bucky is the device in the table or chest board that holds the film cassette. The ‘bucky’ is like a drawer that opens and closes to insert and remove the film cassette.
collimator
COLLIMATOR
  • ATTACHES DIRECTLY BELOW THE X-RAY TUBE
  • SERVES AS A X-RAY BEAM LIMITING DEVISE
  • CONTROLS THE SIZE AND SHAPE OF X-RAY FIELD
field size
Field Size
  • As field size increases, intensity of scatter radiation also increases rapidly. Especially during fluoroscopy
3 types of beam restricting devices
3 Types of beam-restricting devices
  • Aperture Diaphragm
  • Cones or Cylinders
  • Variable aperture collimator
the collimator lamp mirror
The collimator lamp & mirror
  • Must be adjusted so that the projected light field coincides with the x-ray beam
  • Misalignment of the light field and beam can result in collimator cutoff of anatomic structures
radiograph
RADIOGRAPH
  • PERMANENT RECORD MADE USING RADIATION
    • RADIO- RADIATION (usually x rays)
    • GRAPH PERMANENT RECORD (film)
cassette or film holder
CASSETTE or FILM HOLDER
  • The CASSETTE is used to hold the film during examinations. It consist of front and back intensifying screens, and has a lead (Pb) backing. The cassette is light tight
control console
CONTROL CONSOLE
  • GIVES THE TECHNOLOGIST CONTROL OF THE X-RAY MACHINE
  • TECHNIQUE SELECTION
  • Located OUTSIDE of the Radiographic Room
the control console
The Control Console
  • The control console is device that allows the technologist to set technical factors (mAs & kVp) and to make an exposure.
  • Only a legally licensed individual is authorized to energize the console.
technique kvp mas ma x s
“Technique”kVp , mAs (mA x s)
  • What is set at the control panel
  • How the “image” is created on the “film” or Image receptor (digital)
  • kVp controls the “ENERGY” of the beam
  • The Higher kVp – more penetrating
  • Ranges is 50 -110 in Diagnostic x-ray
technique kvp mas ma x s44
“Technique”kVp , mAs (mA x s)
  • mA- is the current in combination with the time – determines HOW LONG the beam will stay on
  • Controls the density on the film/image
safe light
Safe Light
  • 15 Watts
  • Red filter
  • Must be 3-6 feet from counter top or feed tray of processor
  • Used to be amber or orange filter
other x ray stuff
Other x-ray stuff….
  • Positioning phantoms
  • Pixie
other x ray stuff57
Other x-ray stuff….
  • Positioning sponges
  • Lead markers
  • Gurney
rta lab 1 equipment
RTA LAB 1 : EQUIPMENT
  • Next week…..
  • TOUR OF THE IONIZING LAB HERE ON CAMPUS.
  • COMPLETE IN CLASS WORKSHEET FOR TERMINOLOGY