Radiochromic compounds

Besides photochromism of aziridinyl anils, possible radiochromic properties are mentioned in the literature [110, 124, 125]. In the opinion of Chebanov et al. [110, 124, 125], the most representative radiochromic compounds are the bi- and tricyclic aziridines containing polyarene fragments. To synthesize polyarene derivatives of aziridinyl anils, a modification of the Suzuki-Miyaura reaction was used (Scheme 1.47). 

The monitoring of dose can be performed with different techniques chemical systems (Fricke and ceric solutions [31]), radiochromic compounds (dyes [32, 33]), polymeric tapes (polyethylene [34], poly(vinyl chloride) [35, 36], poly(methyl methacrylate) [37-40], epoxy resin [41]), radiation thermoluminescence phosphors [42, 43]. Several requirements are imposed for a proper dosimeter similarity with processed material in respect with linear energy transfer, reproducibility, sensitivity, lack of the influence of humidity, stability after irradiation, easy to calibrate, appropriate dose range and dose rate, linearity and independency on the type of radiation, the response being constant in time, lack of post-irradiation modification. 

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