Brand: Leeds Test Objects | Category: Nuclear Medicine & Imaging

A dental cone beam CT image quality phantom comprising a PMMA cylinder with recesses for test inserts. The body provides uniform PMMA for noise and an air hole array for geometric distortion, while the inserts add spatial resolution, contrast and density measurements.
| Parameter | Value |
|---|---|
| Specification | PMMA cylinder, 160 mm diameter |
| Specification | Uniform PMMA lower section, density 1.20 plus or minus 1.00%, for noise and uniformity |
| Specification | Geometric distortion array of 2.0 mm diameter, 3.0 mm deep air gaps at 10.0 mm pitch |
| Line spread function insert | PMMA and PTFE interface |
| Point spread function insert | 0.25 mm diameter stainless steel wire suspended in air |
| Line pairs per mm insert | alternating aluminium and polymer |
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An accessory to the SedentexCT IQ phantom that lets the standard test inserts be placed in a body sized for paediatric cone beam CT imaging. Image quality is then assessed at a phantom size that represents a child rather than an adult head. It complies with the Chinese YYT 0795-2022 standard.
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