DP-850

The DP-850 is the first comprehensive "End-to-End" phantom that evaluates the entire radiotherapy treatment process.

Key Features

CT/SIM QA
  • Laser Alignment & Orientation for gantry, walls, ceiling
  • CT Couch Orientation, indexing, motion, and position
  • Slice Thickness / Profile Width & Sensitivity Profile
  • CT Number Constancy
  • Field Uniformity & Image Noise
  • Spatial & Contrast Resolution
  • Virtual SIM with Hidden Target Localization, Contouring, & Laser Movement Accuracy

Treatment Planning QA

  • DICOM Transfer
  • Spatial & Contrast Resolution
  • Slice Thickness
  • Field Uniformity & Noise
  • CT Number Constancy
  • In-Plane Spatial Integrity
  • Contouring, Margin Creation, DRR Spatial, Dose and DVH Accuracy

Treatment Imaging QA

  • DICOM & Volume Transfer Accuracy
  • Spatial Integrity Accuracy
  • TG-142 Position / Reposition, Monthly
  • kV Imaging and Treatment Coordinate Coincidence
  • CBCT Distortion, Spatial Resolution, Contrast, Constancy, Uniformity & Noise

Treatment Delivery QA

  • Plan Delivery Accuracy
  • Dose Verification
  • Target Localization Delivery Accuracy

Full Description

The DP-850 is the first comprehensive “end-to-end” phantom that evaluates the entire radiotherapy treatment process. The DP-850 is designed to fully comply with AAPM TG-66 requirements for CT simulators as well as key components of AAPM TG-53 for treatment planning system quality assurance.

The DP-850 is constructed of a solid material with a density value of 0.85 g/cm3 (relative to water) as the background material. It consists of 4 primary modules that are assembled using rods, of a density similar to trabecular bone, around the periphery. Various internal structures and test objects as well as external engravings and fiducials are utilized for integrated testing.

In 2018, the DP-850 was redesigned as the DP-1000 with even more features and water-equivalent background material.
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