CIRS 002HN radiotherapy test phantom

CIRS 002HN radiotherapy test phantom

Product details
——Complete quality inspection from CT imaging to dose verification

The CIRS 002HN IMRT head and neck phantom is designed to solve the complex issues surrounding commissioning and comparison of treatment planning systems and complete system QA from CT imaging to dose verification. The CIRS 002HN phantom correctly represents the anatomy of the human head and neck in terms of shape, proportion, structure, and density. This allows for a comprehensive analysis of treatment plans and delivery systems.

The phantom is made from a proprietary tissue-equivalent epoxy material. fromFrom 50 keV to 15 MeV, the linear attenuation of simulated tissue is within 1% of the actual attenuation of bone and water. It is round and approximately the size of an average patient. Tissue-equivalent interchangeable rod inserts for ionization chambers allow measurement of point doses in multiple planes in phantom and film calibrations.

Model 002HN not only supports standard X-ray film, but also supports film dosimetry with GafChromic® media. Additional plugins are also available to support a variety of other detectors, including TLDs, MOSFETs, and diodes. It holds one Ready PackTM 10 x 12 inch film in landscape orientation and two 10 x 10 cm radiographic or radiographic films. The film was laid crosswise and 13 sheets of radiochromic film were stacked and precut to 63.5 x 63.5 mm. in three different directions.

Model 002HN features optional four electron density reference plugs that are interchangeable in five separate positions in the phantom. The surface of the phantom is engraved with grooves to ensure correct orientation of CT slices and accurate film-to-plan registration. Optional skull rings are also available.

CIRS 002HN radiotherapy test phantomFeatures

Verify heterogeneity correction

makeCTU is related to electron density

Check dose distribution in sensitive areas

Check depth dose and absolute dose

2D and 3D isovelocities

Calibrating the membrane using an ion chamber

Verify individual patient’s treatment plan

IMRT verification system

The CIRS IMRT phantom is made from tissue-equivalent materials that simulate within 1% between 50 keV and 15 MeV, allowing for accurate simulation in all necessary steps of IMRT validation. The interchangeable rod design allows the phantom to accommodate multiple dose measurement devices such as ion chambers, TLDs, diodes and MOSFETs in the same location in the phantom. The phantom cross-section accommodates GafChromic® or standard ready-to-use packaging films.

The CIRS series of MRT phantoms are compatible with RIT 113 software and can be used for film planning analysis.