Implantable cardiac pacemaker failure by cumulative dose effects of flattening filter free beams. [PDF]
J Radiat Res, 2021 Nakamura K +6 more
europepmc +3 more sources
Atom Indonesia, 2022 The aim of this study was to characterize electron contamination of a flattened (FF) and an unflattened (FFF) Varian Clinac iX 6X and 15X photon beams using Monte Carlo (MC) simulation.
F. Haryanto +3 more
doaj +1 more source
Investigation of Neutron Contamination of Flattening Filter and Flattening Filter-Free 10-MV Photon Beams in Elekta InfinityTM Accelerator [PDF]
Iranian Journal of Medical Physics, 2020 Introduction: This study aimed to measure the neutron contamination of flattening filter (FF) and flattening filter-free (FFF) 10-MV photon beams delivered by the Elekta InfinityTM accelerator.
Sitti Yani +5 more
doaj +1 more source
Is attenuation technique sensitive enough to be used to make distinction between FF and FFF spectrum of therapy linac [PDF]
Nuclear Technology and Radiation Protection, 2019 The purpose of this study was to check if attenuation analysis is sensitive enough to make a distinction between photon energy spectra of standard accelerators and accelerators operating without a field flattening filter.
Toth Arpad A. +4 more
doaj +1 more source
On flattening filter‐free portal dosimetry [PDF]
Journal of Applied Clinical Medical Physics, 2016 Varian introduced (in 2010) the option of removing the flattening filter (FF) in their C‐Arm linacs for intensity‐modulated treatments. This mode, called flattening filter‐free (FFF), offers the advantage of a greater dose rate. Varian's “Portal Dosimetry” is an electronic portal imager device (EPID)‐based tool for IMRT verification.
Pardo, Eduardo +3 more
openaire +2 more sources
A Monte Carlo Study of Photon Beam Characteristics on Various Linear Accelerator Filters [PDF]
Journal of Biomedical Physics and Engineering, 2020 Background: Intensity Modulated Radiation Therapy (IMRT) technique is an advanced method of radiotherapy leading into the development of Flattening Filter-Free (FFF) medical linear accelerators (Linacs).
S A Pawiro, A Azzi, D S Soejoko
doaj +1 more source
Precision Radiation Oncology, 2021 Objective We aimed to compare the dosimetric characteristics of 6‐MV flattening filter mode (FF) and flattening filter‐free mode (FFF) volumetric‐modulated arc therapy (VMAT) plans in preoperative radiotherapy for rectal cancer using an Edge linear ...
Zhen Ding +5 more
doaj +1 more source
Combining tissue-phantom ratios to provide a beam-quality specifier for flattening filter free photon beams. [PDF]
, 2014 There are currently several commercially available radiotherapy treatment units without a flattening filter in the beam line. Unflattened photon beams have an energy and lateral fluence distribution that is different from conventional beams and, thus ...
Dalaryd, Mårten +5 more
core +3 more sources
Dosimetric Evaluation With/Without a Flattening Filter in Stereotactic Radiosurgery [PDF]
, 2000 The purpose of this work is to evaluate dosimetric aspects of non-flattening filter based stereotactic mode and normal treatment mode, and to compare dose distribution due to the possible combination of flattening filter and ...
Shinn, K.-S. +5 more
core +1 more source
Analisis pengaruh Flattening Filter Free terhadap distribusi dosis menggunakan metode Monte Carlo [PDF]
, 2021 Telah dilakukan penelitian tentang pengaruh flattening filter free terhadap distribusi dosis menggunakan metode monte carlo. Penelitian ini bertujuan untuk mengetahui perbedaan karakteristik berkas foton pada pesawat Linac dengan menggunakan flattening ...
Putri, Dinda Maulina
core