Hancock Test (Leaf and Jaw Positional Accuracy)


MLC and Jaw QA
The Hancock test makes MLC and Jaw QA simple for Elekta machines. The test follows a simple image acquisition procedure on the iViewGT system, with automatic processing and reporting by RIT. This test has versions specifically formatted for the Agility MLC head and the MLCi2 head. The Hancock test encompasses several mechanical tests including MLC position accuracy, jaw position accuracy, and takes into consideration iViewGT imager position movement and collimator rotation isocenter walkout.
The Hancock test results can be used as input data for adjusting the MLC and jaw calibration in the Elekta TCS (Treatment Control System). The RIT Hancock test is the only system that meets the TG-142 requirement to measure backup jaw position relative to leaf position. The RIT system easily and seamlessly supports JPEG and HIS images from iViewGT.


Track your results in the RITtrend database or export them to PDF or Excel formats.


Isocenter QA

The RIT family of products come equipped with an automated 3D Stereotactic Alignment routine to give you a fast and accurate measurement of isocenter position. Using only a set of EPID Winston-Lutz images, the RIT system will calculate isocenter displacement, determine wobble around the isocenter, and suggest couch position adjustments to optimize your system’s accuracy.


Eliminate your need for films, and increase your accuracy by using the all new Virtual Starshot (US Patent 9192784, JP Patent 6009705, CA Patent 2918045, and other International Patents pending), reconstructed using a set of Winston-Lutz images!


Imaging Tests

  • Catphan 503 for Elekta XVI
  • Planar kV Imaging
  • Planar MV (EPID) Imaging
  • IGRT / kV-MV Coincidence