The Defrise Phantoms (also known as a disc phantom) is used to identify cone-beam artifacts. The phantom is available in three sizes: Mini, Micro, and Ultra-Micro.
Product Specifications (pdf)
Mini, Micro, Ultra-Micro Defrise Phantom™ to Data Spectrum Corporation
Carton: 10 × 8 × 4
Weight: 3 lbs.
The product can be utilized for small animal system evaluation: ultra-high-resolution systems, slice profile uniformity, along longitudinal axis of a system, and ultra-high resolution, fan-beam, cone-beam and pinhole collimation.