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Measurement Capabilities
• Noise
• Size Independence
• Sensitivity / Detectablity
• Radiation Dose
• Mechanical Alignment
• Spatial Uniformity
• Beam Hardening
• HU Linearity
• Slice Thickness
• Spatial Resolution and line spread function
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The CIRS Model 610 AAPM CT Performance Phantom offers the user a single test object that measures ten distinct CT performance parameters. The phantom design is based on the guidelines presented in Report #1 of the American Association of Physicists in Medicine Task Force on CT Scanner Phantoms. The goals of report #1 were to “(1) define ‘performance’ of a CT scanner and (2) describe methods of performance testing through utilization of particular phantoms.”
A CT number linearity insert, high contrast resolution insert and slice width insert are housed in an 8.5 “ diameter PMMA water tank with quick disconnect valves for ease of filling and draining between use. Also included is a 0.25” bone equivalent ring that can be fit over the inserts to evaluate the effects of beam hardening.
A contrast test object is adhered to the bottom of the tank that includes two rows of cavities from 1 to 0.125” diameter. The cavities can be filled with various solutions for contrast evaluation. An aluminum alignment insert is incorporated in the lid of the tank and can be swapped with a polystyrene TLD insert for dose measurements.
A user’s manual, holding cradle, filling tubes and other accessories are included.
Optional items:
Low contrast test object insert
External whole-body resolution / noise ring
Foam lined carry case.
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