X-ray Imaging (AQA A-Level Physics): Flashcards
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X-ray energy absorbed by traditional photographic film (%)
X-ray energy absorbed by traditional photographic film (%)
0.1%
Material in FTP detectors that emits light from X-rays
Material in FTP detectors that emits light from X-rays
Scintillator
What scintillator emits when absorbing X-rays
What scintillator emits when absorbing X-rays
Light photons
Relationship: scintillator light intensity & X-ray energy
Relationship: scintillator light intensity & X-ray energy
Directly proportional
FTP detector advantage: exposure time vs film
FTP detector advantage: exposure time vs film
Shorter exposure time, lower radiation dose
FTP detector advantage: image access speed
FTP detector advantage: image access speed
Instant digital images
When is a contrast medium used in X-ray imaging?
When is a contrast medium used in X-ray imaging?
When tissues have similar proton numbers
Contrast agent for gastrointestinal imaging
Contrast agent for gastrointestinal imaging
Barium meal
Material in intensifying screens
Material in intensifying screens
Fluorescent crystals
Key feature of fluoroscopic imaging
Key feature of fluoroscopic imaging
Real-time X-ray imaging