Results 81 to 90 of about 2,171,676 (258)

Validation of Geant4 nuclear reaction models for hadrontherapy and preliminary results with SMF and BLOB [PDF]

open access: yes, 2017
Reliable nuclear fragmentation models are of utmost importance in hadrontherapy, where Monte Carlo (MC) simulations are used to compute the input parameters of the treatment planning software, to validate the deposited dose calculation, to evaluate the ...
Barbara Caccia   +6 more
core   +1 more source

Design and validation of a novel dosimetry phantom for motion management audits

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 6, June 2025.
Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton   +5 more
wiley   +1 more source

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training programs

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 6, June 2025.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye   +16 more
wiley   +1 more source

Skin Dosimetry in Radiotherapy of Breast Cancer: a Comparison between EBT and EBT3 Radiochromic Films

open access: yesJournal of Biomedical Physics and Engineering, 2016
Objective: Radiochromic EBT3 film is a later generation of radiochromic films. The aim of this study is to compare EBT and EBT3 radiochromic films in radiotherapy fields of breast cancer.
Bahreyni Toosi M. T.   +5 more
doaj  

Absorption spectra of irradiated XRCT radiochromic film [PDF]

open access: yesPhysics in Medicine and Biology, 2006
Gafchromic XRCT radiochromic film is a self-developing high sensitivity radiochromic film product which can be used for assessment of delivered radiation doses which could match applications such as computed tomography (CT) dosimetry. The film automatically changes colour upon irradiation changing from a yellow to green/brown colour.
Tsang Cheung   +3 more
openaire   +3 more sources

Field output correction factors using a scintillation detector

open access: yesMedical Physics, Volume 52, Issue 6, Page 4844-4861, June 2025.
Abstract Background As small radiation fields play an ever‐increasing role in radiation therapy, accurate dosimetry of these fields becomes critical to ensure high quality dose calculation and treatment optimization. Despite the availability of several small volume dose detectors, small field dosimetry remains challenging.
Luc Gingras   +10 more
wiley   +1 more source

Dosimetry for New Radiation Therapy Approaches Using High Energy Electron Accelerators

open access: yesFrontiers in Physics, 2020
We have performed dosimetry studies using electron beams with energies up to 50 MeV, which exceed current clinical energy ranges and approaches the bottom end of the very high energy electron range. 50 MeV electron beams can reach deep-seated tumors.
Karolina Kokurewicz   +9 more
doaj   +1 more source

An investigation into the INTRABEAM miniature x‐ray source dosimetry using ionization chamber and radiochromic film measurements

open access: yesMedical Physics (Lancaster), 2018
PURPOSE Intraoperative radiotherapy using The INTRABEAM System (Carl Zeiss Meditec AG, Jena, Germany), a miniature low-energy x-ray source, has proven to be an effective modality in the treatment of breast cancer.
P. Watson   +4 more
semanticscholar   +1 more source

A simplified model of the source channel of the Leksell Gamma Knife$^(R)$: testing multisource configurations with PENELOPE

open access: yes, 2004
A simplification of the source channel geometry of the Leksell Gamma Knife$^{\circledR}$, recently proposed by the authors and checked for a single source configuration (Al-Dweri et al 2004), has been used to calculate the dose distributions along the $x$
Al-Dweri F M O   +12 more
core   +1 more source

Radiochromic film label made from chitosan and Taraxacum officinale leaf extract

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Monitoring the dose of gamma-ray radiation is important in the healthcare field. A simple indicator for dose monitoring is provided by radiochromic labels.
P. Widodo   +5 more
semanticscholar   +1 more source

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