7 Questions
What is the name of the invisible change induced in the silver halide crystal?
Latent image
What is the immediate result after exposure to image-forming x-rays?
No image can be observed on the film
What is the name of the energy deposit pattern representative of the anatomical part being radiographed?
Emulsion pattern
How is the energy primarily deposited in the emulsion of the radiographic intensifying screen-film?
By interaction with atoms of the silver halide crystal
What are some causes of x-ray tube failure?
Cathode filament burnout, slow leaks, anode cracking or pitting, shattering the glass envelope, mechanical damage, electron arcing, stator or rotor failure, the gyroscopic effect, and rough handling/carelessness.
What are the potential consequences of anode cracking or pitting in an x-ray tube?
Anode cracking or pitting can lead to x-ray tube failure.
How can x-ray tube failure occur due to mechanical damage?
Mechanical damage can cause x-ray tube failure through shattering the glass envelope and rotor or stator failure.
Study Notes
Radiographic Imaging
- The invisible change induced in the silver halide crystal is known as latent image formation.
- The immediate result after exposure to image-forming x-rays is the formation of silver atoms, which eventually become visible as the image develops.
Energy Deposition Pattern
- The energy deposit pattern representative of the anatomical part being radiographed is called the subject contrast.
Radiographic Intensifying Screen-Film
- The energy in the emulsion of the radiographic intensifying screen-film is primarily deposited through absorption of x-ray photons, which excites the phosphor atoms, leading to light emission.
X-ray Tube Failure
- Causes of x-ray tube failure include anode heat overload, filament failure, and power supply faults.
- The potential consequences of anode cracking or pitting in an x-ray tube are reduced x-ray output, increased risk of tube failure, and decreased image quality.
- X-ray tube failure can occur due to mechanical damage, such as physical shock, vibration, or dropping the tube.
Test your knowledge of the formation of the latent image in radiography with this quiz. Explore how x-rays interact with the silver halide crystals in the film emulsion to create a pattern representative of the anatomical part being radiographed.
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