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CTSTP

York Test Pieces Stand: F90
  • CTSTP
  • CTSTP
  • CTSTP
CTSTP CTSTP CTSTP

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.

CTSTP is supplied in a protective case with user manual and log sheet for CT security screening systems. 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.

Test Article A
Test 1 Object length accuracy
Test 2 Path-length CT value and Zeff
Test 3 CT value uniformity and x-ray energy spectrum consistency
Test 4 Streak artifacts
Test 5 Image registration

Test Article B
Test 6 Object length accuracy
Test 7 Noise equivalent quanta (NEQ)
Test 8 CT value consistency
Test 9 Slice sensitivity profile (SSP)

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