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AAPM CT Performance Phantom Model 610
Meets guidelines in AAPM Report #1 "Performance
Evaluation and Quality Assurance of CT Scanners"
Model 610
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
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.
Specifications:
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