IEEE N42.45-2021
$54.17
American National Standard for Evaluating the Image Quality of X-ray Computed Tomography (CT) Security-Screening Systems
| Published By | Publication Date | Number of Pages |
| IEEE | 2021 |
Revision Standard – Active. Standard test methods for the evaluation of image quality of computed tomography security-screening systems are established in this document. The quality of data for automated analysis is the primary concern. The system’s ability to use this image data to automatically detect explosives or other threat materials, which is typically verified by an appropriate regulatory body, is not addressed in this standard.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | ANSI N42.45-2021 Front cover |
| 2 | Title page |
| 5 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 9 | Participants |
| 11 | Introduction |
| 12 | Contents |
| 13 | 1. Overview 1.1 Scope 1.2 Purpose |
| 14 | 1.3 Word usage |
| 15 | 2. Normative references 3. Definitions, acronyms, and abbreviations 3.1 Definitions |
| 17 | 3.2 Acronyms and abbreviations 4. General test-performance requirements |
| 18 | 5. Description of the test articles |
| 20 | 6. Test procedures for image quality 6.1 General 6.2 Manually recorded data |
| 25 | 6.3 Object length accuracy |
| 29 | 6.4 Path-length CT value and Zeff |
| 31 | 6.5 Noise equivalent quanta (NEQ) |
| 34 | 6.6 CT value consistency |
| 35 | 6.7 CT value uniformity and X-ray energy spectrum consistency |
| 37 | 6.8 Streak artifacts |
| 39 | 6.9 Slice sensitivity profile (SSP) |
| 41 | 6.10 Image registration |
| 46 | Annex A (informative) Bibliography |
| 47 | Annex B (normative) Detailed test article drawings B.1 General B.2 Commercial parts B.3 Outer enclosure |
| 48 | B.4 Detailed drawings of custom components |
| 72 | Annex C (informative) Sample report |
| 76 | Annex D (informative) Statistical guidance on multiple scans, summary statistics, and comparison of results |
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