IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
DEVELOPMENT OF A HIGH-RESOLUTION RADIATION DOSIMETRY SYSTEM BASED ON FRICKE SOLUTIONS
Autor/es:
JOSE VEDELAGO; FACUNDO MATTEA; MAURO VALENTE
Lugar:
Cusco
Reunión:
Congreso; 14th INTERNATIONAL SYMPOSIUM OF SOLID STATE DOSIMETRY; 2014
Institución organizadora:
Soc. Peruana de Proteccion Radiologica
Resumen:
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Due to the growing complexity of
modern medical procedures involving the use of ionizing radiation,
dosimetry by non-conventional techniques is one of the research areas
in the field of greatest interest nowadays. Tissue-equivalent
high-resolution dosimetry systems capable of attaining continuous
dose mapping are required. In this scenario, Fricke gel dosimetry is
a very promising option for in-phantom dose measurements in complex
radiation techniques. Implementation of this technique requires
dedicated instruments capable of measuring and performing the
immediate in situ analysis of the acquired data at the radiation
facility. The versatility of Fricke gel dosimetry in different
applications depending on the chemical and isotopic composition of
the dosimeter extends its application to different high performance
conventional and non-conventional radiation procedures involving
diverse types of radiation treatments and also radiation diagnosis
procedures. This work presents an integral dosimetry system, based on
Fricke gel solutions and their analysis by optical techniques, aiming
for an increase in the precision on dose determinations. The chemical
synthesis and dosimeter preparation were accomplished at LIIFAMIRx
facilities, following the procedures and protocols described in
previous works. Additionally, specific instrumentation for optical
sample analysis was completely designed and constructed at LIIFAMIRx
facilities. The main outcome of this work was the development of a
methodology that improves the integral dose determination performance
by the pre-irradiation of Fricke gel dosimeters.