QRM-CTDI-CTWaterŽ
A WATER-equivalent dosimetry phantom, traced back on the standards for CTDI evaluation in Computed Tomography.
Order-number: QRM-CTDI-CTWater |
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QRM-CTDI-CTWater
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QRM-CTDI-CTWaterŽ dosimetry phantom is
manufactured from CTWaterŽ, a
proprietary resin which exhibits the same xray
attenuation characteristics as liquid
water in the range of 80 kV to 140 kV tube
voltage.
The phantom is constructed in a modular
fashion with a smaller inner cylinder which
tightly fits into a larger outer cylinder. Both
cylinders offer four through holes near the
perimeter to accomodate standard CT dose
probes. Supplied are nine massive rods,
made from CTWaterŽ, to plug the holes
not in use, and adapter plugs to house
diverse pencil shaped ion chambers.
Further adapter plugs can be manufactured
on customers specification.
Specifications |
|
| diameter body: | 32 cm |
| diameter head: | 16 cm |
| depth of phantom | 15 cm |
| hole positions according to [2, 3] | 10 mm diameter |
- [1] Evaluation and comparison of water-equivalent CTDI dosimetryphantoms
Erb, J.; Schmidt, M.; Schmidt, B.; Kalender, W.A.
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE Volume 1, Issue , 2000 Page(s):102 - 105 - [2] Department of Health and Human Services, Food and Drug Administration. 21 CFR Part 1020: Diagnostic x-ray systems and their
major components;
amendments to performance standard; Final rule. Federal Register, 49, 171 (1984) - [3] IEC 1223-2-6
Evaluation and routine testing in medical imaging departments. Part 2-6: Constancy tests - X-ray equipment for computed tomography
