Gafchromic™ films are designed to provide fast and highly accurate measurements for radiotherapy QA applications. Gafchromic™ XR-CT3 radiology films are specifically designed for machine quality assurance on CT scanners.
https://www.ashland.com/file_source/Ashland/Documents/Gafchromic%20XRCT3%20Protocol%20Sell%20Sheet.pdf
