Abstract
Polymeric gel dosimeters are used to verify three-dimensional (3D) dose distributions of various types of radiotherapy treatments, particularly radiosurgery. The present paper investigates the low toxicity and high dose response of a new acrylate gel. The optimal recipe with the best linearity (R 2 = 0.998) is 7% gelatin, 5% 2-(dimethylamino) ethyl acrylate monomer, and 4% N′N′-methylene-bisacrylamide crosslinker. The dose range is 0–30 Gy, and the temporal stability time is 12 h after irradiation. No significant energy dependency has been observed. The results show that the 2-(dimethylamino) ethyl acrylate N′N′-methylene-bisacrylamide gelatin gel is a potential 3D dosimeter.
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