Results 61 to 70 of about 4,735 (211)

Patient radiation dosimetry for fluoroscopically guided interventions – a review of the history and limitations

Medical Physics, Volume 53, Issue 1, January 2026.
Abstract Fluoroscopically guided interventions (FGIs) play a critical role in modern medicine, though they potentially deliver high radiation doses that require accurate and patient‐specific dosimetry for risk assessment and patient management. This review provides a historical overview of radiation dosimetry in fluoroscopy, tracing the evolution from ...
Kevin A. Wunderle, Stephen Balter
wiley   +1 more source

Post-irradiation colouration of Gafchromic EBT radiochromic film [PDF]

Physics in Medicine and Biology, 2005
Gafchromic EBT (International Specialty Products, NJ, USA), radiochromic film is one of the newest radiation-induced auto-developing x-ray analysis films available for therapeutic radiation dosimetry in radiotherapy applications. Part of any radiochromic film product which undergoes a polymerization reaction for automatic darkening is an associated ...
Tsang, Cheung, Martin J, Butson, Peter K N, Yu   +2 more
openaire   +2 more sources

Multi‐institutional study on the commissioning and clinical implementation of the TrueBeam enhanced leaf model in the Eclipse treatment planning system

Journal of Applied Clinical Medical Physics, Volume 26, Issue 12, December 2025.
Abstract Purpose Recently, the Enhanced Leaf Modeling (ELM) was developed to improve the multileaf collimator (MLC) model in the Eclipse treatment planning system (TPS). This multi‐institutional study evaluated the dose calculation accuracy and clinical feasibility of the ELM for TrueBeam linear accelerators (linacs) equipped with Millennium 120 and ...
Ryohei Miyasaka, Ryuta Hirai, Yuhi Suda, Ryohei Yamauchi, Norifumi Mizuno, Yuya Suzuki, Mitsunobu Igari, Tomohiro Ohta, Hiroki Nakayama, Yu Arai, Kaito Sakai, Kazushi Hatakeyama, Hisayuki Miyashita, Masahiko Kurooka, Toru Kawachi, Ryusuke Hara   +15 more
wiley   +1 more source

Patients skin dose measurements during interventional radiological examinations using Gafchromic XR-RV3 FILM

Радиационная гигиена, 2020
This work is devoted to the assessment of the absorbed dose in the skin of patients undergoing interventional radiological examinations. There is a probability of deterministic effects in the skin of patients due to high doses of radiation during this ...
Svetlana S. Sarycheva
doaj   +1 more source

Comparison between radiochromic film and Sun nuclear edge diode detector during the commissioning of small field size radiosurgery cones

Brazilian Journal of Radiation Sciences, 2022
Stereotactic Radiosurgery (SRS) is a procedure that uses ionizing radiation in a single fraction or few fractions to treat intracranial lesions. Usually, for these treatments, small photon fields, formed by circular collimators or micro multileaf ...
Thiago Schmeling Fontana, Karen Pieri Bueno, Lucas Delbem Albino, Ernesto Henrique Roesler, Matheus Fernando dos Santos, Viviane Khoury Asfora, Helen Jamil Khoury   +6 more
doaj   +1 more source

Fluorescent light effects on FWT-60 radiochromic film [PDF]

Physics in Medicine and Biology, 2005
FWT-60 radiochromic film has been tested for colouration effects from fluorescent light sources and shown to produce a marked colouration when exposed to office fluorescent light sources showing an approximate 1 OD unit per 0.5 J m(-2) exposure to a broad ultraviolet (UV) UVA + UVB spectrum at the peak absorption wavelength.
Martin J, Butson, Tsang, Cheung, Peter K N, Yu   +2 more
openaire   +2 more sources

Modeling Coloration of a Radiochromic Film with Molecular Dynamics-Coupled Finite Element Method

Applied Sciences, 2017
Radiochromic films change color upon exposures to radiation doses as a result of solid-state polymerization (SSP). Commercially available radiochromic films are primarily designed for, and have become widely used in, clinical X-ray dosimetry.
Mehrdad Shahmohammadi Beni, D. Krstic, D. Nikezic, K.N. Yu   +3 more
doaj   +1 more source

Fast and accurate measurement of small field dosimetry using a novel scintillation detector

Journal of Applied Clinical Medical Physics, Volume 26, Issue 12, December 2025.
Abstract Background The most used instruments for small‐field dosimetry have notable limitations, including the need for correction of output factors, limited scanning speeds, and challenges in alignment for percentage depth dose (PDD) measurements, particularly for extremely small fields.
Yiding Han, Jingzhu Xu, Yao Hao, Baozhou Sun   +3 more
wiley   +1 more source

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

, 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, Antonio M Lallena, Cheung J Y C, Cheung J Y C, Cheung J Y C, Elekta, Elekta, Elekta, Feras M O Al-Dweri, Ma L, Moskvin V, Salvat F, Xiaowei L   +12 more
core   +1 more source

Evidence of resonant surface wave excitation in the relativistic regime through measurements of proton acceleration from grating targets [PDF]

, 2013
The interaction of laser pulses with thin grating targets, having a periodic groove at the irradiated surface, has been experimentally investigated. Ultrahigh contrast ($\sim 10^{12}$) pulses allowed to demonstrate an enhanced laser-target coupling for ...
Baffigi, F., Bigongiari, A., Bougeard, M., Ceccotti, T., D'Oliveira, P., Floquet, V., Fuchs, J., Gizzi, L. A., Heron, A., Klimo, O., Kveton, M., Labate, L., Macchi, A., Martin, P., Novotny, F., Passoni, M., Possolt, M., Prokupek, J., Proska, J., Psikal, J., Raynaud, M., Reau, F., Riconda, C., Sgattoni, A., Stolcova, L., Tcherbakoff, O., Vassura, L., Velyhan, A.   +27 more
core   +4 more sources