X-Ray Image Analysis Flashcards
7 cards from real TSO practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 X-Ray Image Analysis flashcards as text
What does 'density' refer to in the context of X-ray image interpretation?
Answer: How much an object absorbs X-ray energy relative to its size
Density in X-ray imaging refers to how much a material absorbs X-ray radiation, which determines its brightness and color on the image.
A passenger's bag shows a tightly packed rectangular block that appears uniformly orange with no visible gaps. What concern might this raise?
Answer: The dense uniform block could be concealing items or indicate an IED component
Uniformly dense blocks can mask hidden items and are a known concealment technique, requiring further inspection.
When interpreting an X-ray image, why is it important to rotate or reposition a bag for a second scan angle?
Answer: To obtain an alternative view that may reveal hidden or overlapping items
A second scan angle can reveal items obscured by overlapping objects in the initial view, improving detection accuracy.
Which of the following best describes 'superimposition' as a challenge in X-ray image analysis?
Answer: When multiple objects overlap in the image, making individual items difficult to identify
Superimposition occurs when objects overlap on the X-ray image, making it harder to identify individual items clearly.
A TSO spots what appears to be a grenade-shaped object in a bag. The passenger claims it is a souvenir. What is the correct TSO action?
Answer: Refer the bag for physical inspection and notify a supervisor
Any grenade-shaped object must be physically inspected and a supervisor notified regardless of the passenger's explanation.
What X-ray image feature is most associated with liquid explosives compared to regular liquids?
Answer: Suspicious liquids may show unusual density patterns or layering inconsistent with common liquids
Liquid explosives may display density anomalies or unusual layering patterns that differ from common liquids like water or shampoo.
Which image manipulation tool helps a TSO see through dense areas of an X-ray image by reducing the apparent density?
Answer: High penetration mode
High penetration (or 'hi-pen') mode reduces the visual density of heavy objects, allowing TSOs to see through them on the image.