Background: In recent years

radiochromic films have been widely used as dosimeters for industrial and medical applications. Purpose: In order to obtain the irradiation features of a radiochromic film that might be used as film dosimeter for electron accelerator

radiochromic films containing a triarylamino methane compound were prepared. Methods: The radiochromic films were irradiated by electron beams under various conditions

such as total dose

electron energy

dose rate

fracture irradiation and temperature. Meanwhile the optical density of the films was analyzed with UV-Vis absorption spectrum. Results: The color of the films changed from clear to green when irradiated by electron beam. As shown by the absorption spectrum

the main absorption peak in the visual region locates around 626 nm. It is noticeable that the response of optical density has a linear relationship with radiation dose ranging from 5 kGy to 50 kGy. Moreover

electron energy

dose rate

fracture irradiation and radiation temperature present different levels of influence upon the response of radiochromic films. Furthermore

as a result of post-radiation effect

stable optical density should be measured more than 12 h after irradiation. Conclusion: The radiochromic films containing a triarylamino methane compound can be utilized to measure the dose of electron irradiation in dose range from 5 kGy to 50 kGy.Cited