L-Rad Phantom
Lightfield Radiation
Provides a low-cost solution for medical physicists to perform EPID-based radiation field size and light field coincidence checks. This lightweight phantom’s innovative design allows for both standard and asymmetrical radiation vs. light field tests, at a variety of field sizes.
Key Features
- Perform EPID-based radiation vs. light field coincidence verifications, both standard and asymmetrical.
- Verify couch movement, including three-dimensional travel and rotation.
- Verify EPID scaling and travel, using the embedded BBs.
- Verify field sizes: 5x5 cm, 10x10 cm, 15x15 cm, and 20x20 cm.
EPID QA Phantom
Support for all EPID devices:
- Varian aS500
- Varian As1200
- Elekta iView
- Siemens EPID
TG-142 MV Imaging Tests:
- Geometric Accuracy
- Low-contrast detectability
- EPID Signal Isotrophy
- Resolution
- Uniformity and Noise
- Constancy in 5 areas
- Resolution (MTF)
- Geometric Distortion
- Uniformity
- Contrast
- Noise
Test Objects
- 4 Aluminum Plugs (20mm)
- 5 Sets of 4 Copper Plugs (4.1, 8.6, 13.3, and 19.6mm)
- 2 Tungsten BBs (0.8mm)
- 2 Tungsten BBs (1.6mm)