EXAM NA 111 Flashcards
is also known as your sensitivity center, also known as a contaminant in the silver halide crystals
Silver Sulfide
silver halide crystals is inside the?
emulsion
type of film that uses intensifying screen
what do intensifying screens do?
-Screen films
-Intensifying screen convert x rays to light photons, to visible light
Films that uses intensifying screen uses —— to make your image
light
——-to form an image it needs x ray lang,
Direct exposure Film-
-device that converts the energy of the x ray beam into visible light
-Intensifying screen
-Visible light then interacts with the radiographic film, forming the —-
latent image
sa film ano ang active ingredient natin
silver halide crystals
Sa intensifying screen ang active ay
phosphor
- It displays the radiographic density.
- Photosensitive, or capable of responding to exposure by photons
Film
Sensitive to the wavelengths and energies that comprise most of the electromagnetic spectrum of both light and x-rays.
Film
- Hard gelatin
- Protects emulsion from scratches, pressure, and contamination during handling, processing, and storage.
- Designed to be
Overcoat, antistatic
——is designed to glue the emulsion to the base and prevent bubbles or other distortion when the film is bent during processing or handling, or when it is wet and heated during development.
2 answers
Adhesive, substratum coating
Foundation of the radiographic film
Base
The base is made out of
Polyester
BASE
• Film base characteristics/properties
Flexible and tough
-Stable (Dimensional Stability)
-Rigid
-Uniformly lucent
Once the X rays hit the — it converts —- into —- —-
Intensifying screen, X rays, light photons
- These light photons then interact with the —- specifically in the —— which contains ——
emulsion, silver halide crystals
- Active ingredient in the film is?
Silver halide
- ngayon pag the light photons interact with the silver halide crystals it will cause them to release —— etong —— ay —— charged
secondary electrons x2, negatively charged
3.2 These silver halide crystals are made up of —— & ——-
Silver bromide and Sliver Iodide
- These negatively charged electron move towards and gets trapped in the —— of the crystals when that happens the —— gets negatively charged as well
Sensitivity center
- So now, because the sensitivity center is negatively charged, it attracts the —— —— ——
positively charged silver ions
Pag the silver ions(+) are attracted to the sensitivity center, they —- and become —- this disruption causes the silver halide crystal —— to break apart
neutralize, neutral, lattice
When the lattice is broke apart, the iodine and bromine are released and move into the ——- of the film, leaving behind material which is ——-
gelatin layer, metallic silver
When the film is processed only the ——— remains forming the visible image on the film
Metallic silver
During manufacturing dye is a added to the base of most radiographic film to slightly tin the film —-
Blue
Why is the base slightly tinted blue
This coloring reduces eye strain, fatigue and enhances radiologists diagnostic efficiency and accuracy
