IEEE N42.45-2011

N42.45-2011 is a technical standard for X-ray computed tomography (CT) security-screening systems, addressing how these systems are characterized and evaluated in practice. It is relevant to bioengineering, signal processing and analysis, and electromagnetics because CT screening depends on measured radiation data, image reconstruction, and reliable system performance. As a superseded document, it remains useful for understanding the requirements and testing context associated with this type of screening equipment.

What is N42.45-2011?

N42.45-2011 defines a focused framework for CT-based security screening technology, with attention to how X-ray data are collected, processed, and assessed for screening applications. The standard sits at the intersection of imaging physics, signal analysis, and equipment performance, making it relevant to system design and evaluation. In practical terms, N42.45-2011 helps describe what should be measured, how results are interpreted, and how consistent technical performance can be compared across similar systems.

Where is N42.45-2011 used?

This standard is typically used in environments that deploy X-ray CT security-screening systems for inspecting baggage, parcels, or other screened items. It may support equipment specification, performance testing, procurement review, and technical qualification in security operations and related engineering workflows. Because the document addresses CT screening rather than general imaging, its use is most relevant where reconstructed images and detector-based analysis are part of the inspection process. N42.45-2011 is therefore useful in controlled screening installations and associated engineering support activities.

Why is N42.45-2011 important?

N42.45-2011 matters because it provides a common technical reference for evaluating CT security-screening systems with greater consistency and less ambiguity. That is important for compliance work, design control, and comparative testing, especially when different systems need to be judged against similar performance expectations. The standard can also help reduce procurement risk by making technical claims easier to verify. For organizations dealing with security inspection technology, N42.45-2011 supports clearer communication between manufacturers, test labs, and end users.

• CT security-screening performance
• X-ray data collection and analysis
• System testing and comparison
• Equipment specification and procurement
• Superseded technical reference