Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
42 Cards in this Set
- Front
- Back
|
What are photon
|
Bundles of energy traveling in wavelength
|
|
|
Why are x-rays dangerous
|
b/c they ionize cells
|
|
|
What is ionization
|
addition or removal of an electron from an atom
|
|
|
How are mA ionization related
|
directly proportional
|
|
|
How are kV and ionization related
|
the more penetration the more ionization
|
|
|
What is Somatic Effect
|
effect of radiation on the individual exposed
|
|
|
What is Genetic Effect
|
effect of radiation the individual exposed future generation
|
|
|
What is RAD
|
Radiation Absorbed dose
|
|
|
What is REM
|
Roentgen Eqiuvalent Man
|
|
|
What is R (Roengen)
|
Dose in air of X and gamma radiations
|
|
|
What are safe light filters
|
Monochronic
Wratten 6B GBX filter |
|
|
What are ventilation
|
Air vents
|
|
|
What is Latent Image
|
Invisible image
|
|
|
What are the types of Processes
|
Automatic
CR DR |
|
|
What is manifest image
|
Image we can see
|
|
|
What is analog
|
Film method
|
|
|
What is latent formation on film
|
Ionization- removing electrom out of atom (breaking the bond)
|
|
|
What is latent image on CR
|
Plate phosphor layer acts in the way as a crystal film. The plates traps the energy and store on a phosphor plate
|
|
|
What is latent image on DR
|
Use of detectors that convert x-ray energy to electrical signal that is delivered to a computer where the anatomical image is digitally processed and displayed
|
|
|
Developer
|
Works on exposed part of film.
|
|
|
What are the reducing agents
|
Pheniodone- Grays work quickly
Hydoquinone- Blacks work slowly |
|
|
What is the name of the Hardner
|
Glutaraldehyde
|
|
|
What are fixers
|
Fixer work on unexposed areas of film
|
|
|
What is the name of the fixing agent
|
Ammonium Thiosulfate
|
|
|
What is the the name of the acidifier
|
Sulfuric Acid
|
|
|
What is the name of the Hardner
|
Aluminum Choride
|
|
|
Hx of the image processing
|
Manual/hand processing- 1960 (1 hr)
Automatic processing- 1960 - present (15 min down to 45 sec) CR/DR- 1960's to present |
|
|
The importance of processing and what is the processor component
|
Developer- Alkaline based (basic)
Fixer- Acidic based Wash Dryer |
|
|
What is the function of the transport
|
Carries at even pace
Gives ding sound when film is loaded |
|
|
What is the function of the squee-gee
|
Hard rubber or plastic roller
|
|
|
What are guide shoes
|
Guide film up and over the next rack.
|
|
|
What is recirculation
|
Mixes the new chemicals with the old
|
|
|
What is the function of replenish
|
Add new chemicas
|
|
|
What is the use of the driver
|
It has a blower and thermostat
|
|
|
What makes an image acceptable
|
Technique
a. mAs (miliamphere seconds) b. kVp (kilovoltage peak) c. Positoning |
|
|
What are mAs
|
Quantity of x-ray photons in the beam
|
|
|
What are kVp
|
Quality of x-ray photons in the beam
Penetrating force of the x-ray beam a. Shorter wavelength, higher penetrati Controls the contrast of the image |
|
|
What does static marks causes
|
Low humidity
Insulation Improper handling |
|
|
What does CR artifact cause
|
Image plates
white spots caused by dirt on plate white marks due to scratches on plate |
|
|
What are tombstone artifact
|
Scatter radiation
|
|
|
What is a fog
|
Image plates are sensitive to scatter
Must be erased in the reading device |
|
|
What is a ghost or Phantom Image
|
Caused by incomplete erasure of the IP
Data remained on the plate |
