Gafchromic™ quick phantom™ device
Gafchromic™ quick phantom™ device
The Gafchromic™ quick phantom™ device was designed for fast and accurate end-to-end testing for patient treatment verification. Gafchromic™ EBT3P film is customized EBT3 film for use in the quick phantom™ device. The EBT3P film has holes in the film that correspond to the pins in the quick phantom™ device to prevent film movement and provides automated registration. The quick phantom™ device offers unprecedented speed, convenience and accuracy for Radiation Therapy QA procedures using radio chromic films.
quick phantom™ device features:
• body- two slabs of Plastic Water water-equivalent to within 1% from 160 keV to 25 MeV dimensions: 29 x 32 x 5 cm3
• positioning –with a standard two-pin indexing bar the groove located on the bottom of the quick phantom™ device, it provides quick, accurate and repeatable positioning of the device on both CT and treatment couches
• film position is indexed to the treatment couch allowing the comparison of the dose measurements to the treatment plan to be regarded as true end-to-end QA test of the treatment system
• asymmetric features and fiducial patterning for correct orientation recognition in TPS
• film positioning pins – The asymmetric placement of two film registration pins in the quick phantom™ device corresponds with the two-hole pattern on Gafchromic™ EBT3P film means there is only one possible orientation for the film in the phantom
• FilmQA Pro™ software has a unique feature that recognizes the fiducial pattern on the film image and automatically aligns it with the treatment plan for quick and accurate analysis and facilitates end-to-end QA test of the treatment system
• The quick phantom™ device is also available with an optional 2 cm thick slab of Plastic Water for pin-point Ion Chamber insertion
• this slab is cut to lock to center while sandwiching the film. Available for A14, A1SL, and 31016 ion chamber
