Results 51 to 60 of about 381 (150)

Very high‐energy electron ( VHEE ) beams in radiation therapy; Treatment plan comparison between VHEE , VMAT , and PPBS

Medical Physics, 2017
The aim of this study was to evaluate the performance of very high-energy electron beams (VHEE) in comparison to clinically derived treatment plans generated with volumetric modulated arc therapy (VMAT) and proton pencil beam scanning (PPBS) technology.
Emil, Schüler, Kjell, Eriksson, Elin, Hynning, Steven L, Hancock, Susan M, Hiniker, Magdalena, Bazalova-Carter, Tony, Wong, Quynh-Thu, Le, Billy W, Loo, Peter G, Maxim   +9 more
openaire   +3 more sources

Laser-plasma generated very high energy electrons (VHEEs) in radiotherapy [PDF]

SPIE Proceedings, 2017
As an alternative modality to conventional radiotherapy, electrons with energies above 50 MeV penetrate deeply into tissue, where the dose can be absorbed within a tumour volume with a relatively small penumbra. We investigate the physical properties of VHEEs and review the state-of-the-art in treatment planning and dosimetry. We discuss the advantages
Kokurewicz, K., Welsh, G. H., Brunetti, E., Wiggins, S. M., Boyd, M., Sorensen, A., Chalmers, A., Schettino, G., Subiel, A., DesRosiers, C., Jaroszynski, D. A.   +10 more
openaire   +3 more sources

Preliminary Studies of a Compact VHEE Linear Accelerator System for FLASH Radiotherapy

, 2021
Proceedings of the 12th International Particle Accelerator Conference, IPAC2021, Campinas, SP ...
Lucia Giuliano, David Alesini, Mostafa Behtouei, Fabio Bosco, Martina Carillo, Giacomo Cuttone, Daniele De Arcangelis, Luigi Faillace, Vincent Favaudon, Luca Ficcadenti, Sophie Heinrich, Mauro Migliorati, Andrea Mostacci, Luigi Palumbo, Annalisa Patriarca, Bruno Spataro, Giuseppe Torrisi   +16 more
openaire   +2 more sources

Dosimetry and radioprotection evaluations of very high energy electron beams

Scientific Reports, 2021
Very high energy electrons (VHEEs) represent a promising alternative for the treatment of deep-seated tumors over conventional radiotherapy (RT), owing to their favourable dosimetric characteristics.
Thongchai A. M. Masilela, Rachel Delorme, Yolanda Prezado   +2 more
doaj   +1 more source

Dosimetric Evaluation of Very High Energy Electron (VHEE) Beams in the Male Pelvic Region Using Geant4/TOPAS [PDF]

The CLEAR (CERN Linear Electron Accelerator for Research) facility has significantly advanced high-energy electron radiotherapy, particularly for treating deep-seated tumors.
Tantaoui, M., Abdessamad, D., Kaanouch, O., Benchekroun, D., Mesradi, M. R., Essaidi, E. M., Krim, M.   +6 more
core   +1 more source

Etude et modélisation de la radiothérapie par électrons de très haute énergie (VHEE) [PDF]

Le développement de méthodes innovantes susceptibles de réduire la sensibilité des tissus sains aux radiations, tout en maintenant l'efficacité du traitement sur la tumeur, est un aspect central de l'amélioration de l'efficacité de la radiothérapie pour ...
Ronga, Maria Grazia
core   +4 more sources

Radionuclide production for dose verification in VHEE FLASH radiotherapy

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
This study explores the production of radionuclides in a PMMA (Polymethylmethacrylate) phantom irradiated with Very High Energy Electrons (VHEE) beams as a novel method for dose verification. In this work, Monte Carlo simulation studies using the Geant4 toolkit and experimental measurements with a VHEE beam produced by a laser-plasma accelerator were ...
Francesco Urso, Federica Baffigi, Esther Ciarrocchi, Leonida Antonio Gizzi, Petra Koester, Luca Labate, Matteo Morrocchi, Simona Piccinini, Martina Salvadori, Maria Giuseppina Bisogni   +9 more
openaire   +4 more sources

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

Physik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Compact dose delivery of laser-accelerated high-energy electron beams toward radiotherapy applications

Physical Review Accelerators and Beams
The use of very high-energy electron (VHEE) beams for radiotherapy has been actively studied for over two decades due to their advantageous dose distribution, deep penetration depth, and great potential of ultrahigh dose-rate irradiation. Recently, laser-
Bing Zhou, Zhiyuan Guo, Yang Wan, Shuang Liu, Bo Peng, Jianfei Hua, Wei Lu   +6 more
doaj   +1 more source

On the approximate solution of nonlinear singular integral equations with positive index

International Journal of Mathematics and Mathematical Sciences, Volume 19, Issue 2, Page 389-396, 1996., 1994
This paper is devoted to investigating a class of nonlinear singular integral equations with a positive index on a simple closed smooth Jordan curve by the collocation method. Sufficient conditions are given for the convergence of this method in Holder space.
S. M. Amer
wiley   +1 more source