CT Standard Test Piece (CTSTP)
| Company | York Test Pieces |
|---|---|
| Product code | CTSTP |
Images
Description
Specifications
CTSTP is a pair of test pieces designed specifically for measuring the imaging performance of X-ray computed tomography (CT) security-screening systems. CTSTP can be used on a routine basis to provide an ongoing check of imaging performance, particularly those aspects which are most liable to deterioration. Image quality is measured by visual and digital analysis of the test images. Recording these numbers over time will show any trend suggesting deterioration in imaging performance.
CTSTP is supplied in a protective case with user manual and log sheet for CT security screening systems.
Test Article A
- Object length accuracy
- Path-length CT value and Zeff
- CT value uniformity and x-ray energy spectrum consistency
- Streak artifacts
- Image registration
Test Article B
- Object length accuracy
- Noise equivalent quanta (NEQ)
- CT value consistency
- Slice sensitivity profile (SSP)
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