Results 101 to 110 of about 2,171,676 (258)

Spectral calibration of EBT3 and HD-V2 radiochromic film response at high dose using 20 MeV proton beams.

open access: yesReview of Scientific Instruments, 2018
Radiochromic film is used extensively in many medical, industrial, and scientific applications. In particular, the film is used in analysis of proton generation and in high intensity laser-plasma experiments where very high dose levels can be obtained ...
Yiwei Feng   +3 more
semanticscholar   +1 more source

Routine machine quality assurance tests for a self‐shielded gyroscopic radiosurgery system

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 4, April 2025.
Abstract Purpose This report describes routine machine quality assurance (QA) (daily, monthly, and annual QA) tests for the Zap‐X® Gyroscopic Radiosurgery® platform. Methods Following the recommendations of the American Association of Physicists in Medicine Task Group (AAPM TG)‐142 and Medical Physics Practice guideline (MPPG) 8.b, routine machine QA ...
Yongsook C. Lee   +6 more
wiley   +1 more source

Modeling kV X-ray-Induced Coloration in Radiochromic Films

open access: yesApplied Sciences, 2018
Commercially available radiochromic films are primarily designed for clinical X-ray dosimetry. These films change color upon exposures to radiation as a result of solid-state polymerization (SSP).
Mehrdad Shahmohammadi Beni   +3 more
doaj   +1 more source

AAPM‐RSS Medical Physics Practice Guideline 9.b: SRS‐SBRT

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 4, April 2025.
Abstract The purpose of this Medical Physics Practice Guideline (MPPG) is to describe the minimum level of medical physics support deemed prudent for the practice of linear‐accelerator, photon‐based (linac) stereotactic radiosurgery (SRS), and stereotactic body radiation therapy (SBRT) services.
Eileen Cirino   +9 more
wiley   +1 more source

Assessment of radiographic screen-film systems: a comparison between the use of a microdensitometer and a drum film digitiser [PDF]

open access: yes, 2017
A high-end drum film digitiser (Tango, Germany) and a calibrated linear microdensitometer developed by PTB were used to assess the modulation transfer function (MTF) and the noise power spectra (NPS) of 3 mammographic screen film systems at optical ...
Bergmann, D.   +3 more
core  

Comparison of three film analysis softwares using EBT2 and EBT3 films in radiotherapy

open access: yesRadiology and Oncology, 2020
The purpose of the study was to compare the results of gamma value based film analysis according to the used type of self-developer film and software product.
Pócza Tamás   +5 more
doaj   +1 more source

Measurement of Collimator Scatter Factor for Photon Fields Using Gafchromic EBT2 Film and Ion Chamber [PDF]

open access: yes, 2016
Background and Objective: In radiotherapy, measurement of the output factor in the air is one of the input parameters for Implementation of treatment planning systems and beam modeling.
Asgarian Dehkordy, Zeinab.   +5 more
core  

Diseño, desarrollo e implementación de un sistema automático de escaneo óptico bidimensional para dosimetría con película radiocrómica en radioterapia de intensidad modulada [PDF]

open access: yes, 2017
A medida que las modalidades de tratamiento de radioterapia continúan en desarrollo, la complejidad en la dosis entregada a los pacientes se incrementa y se vueve crucial la verificación de la dosis administrada y el aseguramiento de la calidad (QA ...
JIMENEZ AVILES, GERARDO   +1 more
core  

A nomogram to determine required seed air kerma strength in planar 131 Cesium permanent seed implant brachytherapy [PDF]

open access: yes, 2019
Purpose: Intraoperatively implanted Cesium-131 ( 131 Cs) permanent seed brachytherapy is used to deliver highly localized re-irradiation in recurrent head and neck cancers.
Bar-Ad, Voichita   +4 more
core   +1 more source

Evaluation of the radiotherapy treatment planning in the presence of a magnetic valve tissue expander.

open access: yesPLoS ONE, 2015
The combination of radiotherapy treatments and breast reconstruction, using temporary tissue expanders, generates several concerns due to the presence of a magnetic valve inside the radiation field.
Débora M Trombetta   +5 more
doaj   +1 more source

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