Repositorio
Institucional

Valente, M.

Vedelago, J.#Chacon, D.#Mattea, F.#Velasquez, J.#Perez, P.

Water-equivalence of gel dosimeters for radiology medical imaging

PERGAMON-ELSEVIER SCIENCE LTD

APPLIED RADIATION AND ISOTOPES

en

International dosimetry protocols are based on determinations of absorbed dose to water. Ideally, the phantom material should be water equivalent, that is, it should have the same absorption and scatter properties as water. This study presents theoretical, experimental and Monte Carlo modeling of water-equivalence of Fricke and polymer (NIPAM, PAGAT and itaconic acid ITABIS) gel dosimeters. Mass and electronic densities along with effective atomic number were calculated by means of theoretical approaches. Samples were scanned by standard computed tomography. Photon mass attenuation coefficients and electron stopping powers were examined. Theoretical, Monte Carlo and experimental results confirmed good water-equivalence for all gel dosimeters. Overall variations with respect to water in the low energy radiology range (up to 130 kVp) were found to be less than 3% in average.

artículo original#presentación de congreso

This study was partially financed by CONICET (Argentina) project ESPORA I - PIP 112-20130100658CO, SeCyT-UNC (Argentina) project DOSCOM I and DI-UFRO (Chile) projects DI-16-6008 and DI-17-1003. Authors are grateful to ICOS radiology technicians, especially Camila Vidal Bravo.

Este estudio fue financiado parcialmente por el proyecto ESPORA I - PIP 112-20130100658CO del CONICET (Argentina), el proyecto DOSCOM I de la SeCyT-UNC (Argentina) y los proyectos DI-16-6008 y DI-17-1003 de la DI-UFRO (Chile). Los autores agradecen a los técnicos de radiología de ICOS, especialmente a Camila Vidal Bravo.

10.1016/j.apradiso.2018.03.005

pdf

Gel dosimetry# Water-equivalence# Computed tomography

http://dx.doi.org/10.1016/j.apradiso.2018.03.005

Chemistry, Inorganic & Nuclear# Nuclear Science & Technology# Radiology, Nuclear Medicine & Medical Imaging

Dosimetría en gel# Equivalencia de agua# tomografía computarizada

Radiología, Medicina Nuclear y de Imágenes

Otras Especialidades de la Física

Físico-Química

WOS:000449448300031

Water-equivalence of gel dosimeters for radiology medical imaging

http://hdl.handle.net/11336/91615

artículo original#presentación de congreso

version publicada

PERGAMON-ELSEVIER SCIENCE LTD

APPLIED RADIATION AND ISOTOPES

Química, Inorgánica y Nuclear# Ciencia y tecnología nucleares# Radiología, Medicina Nuclear e Imágenes Médicas

0969-8043

en

CONICET ESPORA I - PIP 112-20130100658CO#UFRO DI-16-6008#UFRO DI-17-1003#ICOS

CONICET (Argentina) ESPORA I - PIP 112-20130100658CO]

SeCyT-UNC (Argentina) DOSCOM I

UFRO DI-16-6008

UFRO DI-17-1003

This study was partially financed by CONICET (Argentina) project ESPORA I - PIP 112-20130100658CO, SeCyT-UNC (Argentina) project DOSCOM I and DI-UFRO (Chile) projects DI-16-6008 and DI-17-1003. Authors are grateful to ICOS radiology technicians, especially Camila Vidal Bravo.

pdf

hibrida#verde

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