نتایج جستجو برای: gel dosimetry

تعداد نتایج: 112840  

Journal: :Journal of Physics: Conference Series 2013

Journal: :Journal of Physics: Conference Series 2004

ژورنال: سنجش و ایمنی پرتو 2019

Radiotherapy includes all methods that can deliver a particular amount of ionizing radiation to malignant tissues, assuming that minimal damage hurts healthy tissues. We are looking for a valuable and reliable method to measure absorbed dose and the ability to measure the distribution of absorbed dose in three dimensions which nowadays is one of the three-dimensional dosimetry methods in using ...

M. Allahverdi, M.H. Zahmatkesh, M.R. Ay, N. Riyahi Alam, T. Allahverdi Pourfallah,

Background: Polymer gel dosimetry is still the only dosimetry method for direct measuring of threedimensional dose distributions. MRI Polymer gel dosimeters are tissue equivalent and can act as a phantom material. In this study the obtained isodose maps with PAGAT polymer gel dosimeter were compared to those calculated with EGSnrs for singleshot irradiations of 8 and 18 mm collimators of...

Journal: :Journal of Physics: Conference Series 2009

2010
T. Allahverdi Pourfallah M. Allahverdi N. Riyahi Alam M. R. Ay M. H. Zahmatkesh

*Corresponding author: Dr. Tayyeb Allahverdi Pourfallah, Department of Medical Physics and Biomedical Engineering, Tehran University of Medical Sciences, Tehran, Iran. Fax: +98 21 88973653 E-mail: [email protected] Background: Polymer gel dosimetry is still the only dosimetry method for direct measuring of threedimensional dose distributions. MRI Polymer gel dosimeters are tissue equi...

2006
Panagiotis Sandilos Elias Tatsis Lampros Vlachos Constantinos Dardoufas Pantelis Karaiskos Evangelos Georgiou Panagiotis Baras Panagiotis Kipouros Michael Torrens Angelos Angelopoulos

The polymer gel-Magnetic Resonance Imaging (MRI) dosimetry technique was employed to evaluate the mechanical and dose delivery accuracy in Leksell gamma knife stereotactic radiosurgery for the treatment of multiple targets. Two different polymer gel dosimeter formulations that have been reported in the literature were prepared in-house. A plan for the treatment of four brain metastases (targets...

2016
Mauro Vaiente Wladimir Molina Lila Carrizales Silva Rodolfo Figueroa Francisco Malano Pedro Pérez Mauricio Santibañez José Vedelago

Fricke solution has a wide range of applications as radiation detector and dosimetry. It is particularly appreciated in terms of relevant comparative advantages, like tissue-equivalence when prepared in aqueous media like gel matrix, continuous mapping capability, independence of dose rate and incident direction, as well as linear dose response. This work presents the development and characteri...

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