INVESTIGADORES
MATTEA Facundo
artículos
Título:
Polymer gel dosimeter based on itaconic acid
Autor/es:
FACUNDO MATTEA; DAVID CHACÓN; JOSÉ VEDELAGO; MAURO VALENTE; MIRIAM C. STRUMIA
Revista:
APPLIED RADIATION AND ISOTOPES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 105 p. 98 - 104
ISSN:
0969-8043
Resumen:
A new polymeric dosimeter based on itaconic acid and N, N?-methylenebisacrylamide was studied. The preparation method, compositions of monomer and crosslinking agent and the presence of oxygen in the dosimetric system were analyzed. The resulting materials were irradiated with an X-ray tube at 158 cGy/min, 226cGy min and 298 cGy/min with doses up to 1000 Gy. The dosimeters presented a linear response in the dose range 75-1000 Gy, sensitivities of 0.037 Gy-1 at 298 cGy/min and an increase in the sensitivity with lower dose rates. One of the most relevant outcomes in this study was obtaining different monomer to crosslinker inclusion in the formed gel for the dosimeters where oxygen was purged during the preparation method. This effect has not been reported in other typical dosimeters and could be attributed to the large differences in the reactivity among these species.