Table 7.

VMAT/IMRT test summary

Test	Objective	Description (example)	Detector	Ref
7.1	Verify small field PDD	$\le 2\times 2 {\text{cm}}^2$ MLC shaped field, with PDD acquired at a clinically relevant SSD	Diode or plastic scintillator	Yunice et al.(16)
7.2	Verify output for small MLC‐defined fields	Use small square and rectangular MLC‐defined segments, measuring output at a clinically relevant depth for each a	Diode, plastic scintillator, minichamber or microion chamber	Cadman et al. (58)
7.3	TG‐119 tests	Plan, measure, and compare planning and QA results to the TG119 report for both the Head and Neck and C‐shape cases	Ion chamber, film and/or array	TG‐119 (Ezzell et al. (37) )
7.4	Clinical tests	Choose at least 2 relevant clinical cases; plan, measure, and perform an in‐depth analysis of the results	Ion chamber, film and/or array	Nelms et al. (42)
7.5	External review	Simulate, plan, and treat an anthropomorphic phantom with embedded dosimeters.	Various options exist b	Kry et al. (39)

^aA bar pattern scanned with a diode can be used to obtain additional absolute dose profile comparison in the direction perpendicular to MLC movement

^bIf IROC Houston service is used, they typically employ TLDs and radiochromic film. Certain commercial phantoms can accommodate ion chambers for point dose measurements