IMRT 2018

2D verification systems: Radiochromic film

• Radiographic film was used extensively at the dawn of IMRT

• Today radiochromic film more commonly used

• Great spatial resolution, less convenient than detector arrays

• Allows verification of steep dose gradients

Pin marks

9 , 10, 12, 16 Gy isodose lines

Courtesy Jonny Lee

06/06/2018