XU Xuechun, WEI Sheng, XIN Yong, et al. Preparation of radiochromic films based on a triarylanino methane compound and corresponding research on electron irradiation dosimetry[J]. Nuclear techniques, 2014, 37(2): 020205
DOI:
XU Xuechun, WEI Sheng, XIN Yong, et al. Preparation of radiochromic films based on a triarylanino methane compound and corresponding research on electron irradiation dosimetry[J]. Nuclear techniques, 2014, 37(2): 020205 DOI: 10.11889/j.0253-3219.2014.hjs.37.020205.
Preparation of radiochromic films based on a triarylanino methane compound and corresponding research on electron irradiation dosimetry
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
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