X-Ray Screening and Image Interpretation Flashcards

In standard dual-energy X-ray imaging used at TSA checkpoints, what color typically represents organic materials such as food, clothing, and plastics?

Answer: Orange

Organic materials such as food, clothing, and plastics typically appear orange in dual-energy X-ray imaging used at airport checkpoints.

What is the primary goal of X-ray screening at TSA airport security checkpoints?

Answer: Detecting prohibited items and potential security threats

The primary purpose of X-ray screening is to detect prohibited items and potential security threats before they enter the sterile area or board aircraft.

Which of the following items would appear MOST opaque (darkest) on a standard TSA X-ray monitor?

Answer: A steel handgun

Dense metallic items like a steel handgun absorb the most X-ray energy and appear darkest (most opaque) on the monitor.

A TSA officer notices a dense, unclear object in a bag's X-ray image that cannot be readily identified. What is the standard next step?

Answer: Conduct additional screening such as a bag search or alternate X-ray view

When an object cannot be clearly identified on X-ray, the officer must conduct additional screening—such as an alternate X-ray view or physical bag inspection—before clearing it.

In X-ray imaging, what color typically represents dense metallic items such as keys and belt buckles?

Answer: Blue

Dense metallic materials typically appear blue in dual-energy X-ray systems because they absorb the most radiation and appear as a cooler color in the display coding.

When analyzing X-ray images, TSA officers are trained to assess object 'shape.' What is the primary reason for this?

Answer: To identify shapes consistent with known threats such as weapons or explosive components

Shape recognition allows officers to match observed outlines against known threat profiles such as firearms, knives, and explosive device components.

According to TSA alarm resolution protocol, when should an officer resolve a suspected threat alarm identified during X-ray screening?

Answer: Immediately, before clearing the alarming image

TSA protocol requires officers to resolve a suspected threat image immediately before clearing it—allowing it to pass unresolved is a security violation.