Results 21 to 30 of about 720,850 (319)

Impact of Metallic Implants on Dose Distribution in Radiotherapy with Electrons, Photons, Protons, and Very-High-Energy Beams [PDF]

Applied Sciences
Metallic implants in radiotherapy patients alter dose distributions due to their high density and unique composition, potentially compromising treatment precision.
Nicole Kmec Bedri, Milan Smetana, Ladislav Janousek   +2 more
doaj   +2 more sources

Extension of the Synchrotron Radiation of Electrons to Very High Energies in Clumpy Environments [PDF]

The Astrophysical Journal, 2021
Abstract The synchrotron cooling of relativistic electrons is one of the most effective radiation mechanisms in astrophysics. It not only accompanies the process of particle acceleration, but also has feedback on the formation of the energy distribution of the parent electrons.
Dmitry Khangulyan, Felix Aharonian, Carlo Romoli, Andrew Taylor   +3 more
openaire   +4 more sources

A focused very high energy electron beam for fractionated stereotactic radiotherapy [PDF]

Scientific Reports, 2021
AbstractAn electron beam of very high energy (50–250 MeV) can potentially produce a more favourable radiotherapy dose distribution compared to a state-of-the-art photon based radiotherapy technique. To produce an electron beam of sufficiently high energy to allow for a long penetration depth (several cm), very large accelerating structures are needed ...
Svendsen, K, Guénot, D, Svensson, JB, Petersson, K, Persson, A, Lundh, O   +5 more
openaire   +5 more sources

VHEeP: a very high energy electron–proton collider [PDF]

The European Physical Journal C, 2016
Based on current CERN infrastructure, an electron--proton collider is proposed at a centre-of-mass energy of about 9 TeV. A 7 TeV LHC bunch is used as the proton driver to create a plasma wakefield which then accelerates electrons to 3\,TeV, these then colliding with the other 7 TeV LHC proton beam.
Caldwell, A, Wing, M
openaire   +3 more sources

Very high-energy gamma-ray emission beyond 10 TeV from GRB 221009A [PDF]

Science Advances, 2023
The highest-energy gamma-rays from gamma-ray bursts (GRBs) have important implications for their radiation mechanism. Here we report the detection of gamma-rays up to 13 teraelectronvolts from the brightest GRB 221009A by the Large High Altitude Air ...
Z. Cao, F. Aharonian, Q. An, Axikegu, Y. Bai, Y. Bao, D. Bastieri, X. Bi, Y. Bi, J. Cai, Q. Cao, W. Cao, Z. Cao, J. Chang, J. Chang, A. M. Chen, E. Chen, Liang Chen, Lin Chen, Long Chen, M. Chen, M. Chen, Q. Chen, S. Chen, S. Z. Chen, T. Chen, Y. Chen, N. Cheng, Y. Cheng, M. Cui, S. Cui, X. Cui, Y. Cui, B. Dai, H. Dai, Z. Dai, Danzengluobu, D. D. Volpe, X. Dong, K. Duan, J. Fan, Y. Fan, J. Fang, K. Fang, C. Feng, L. Feng, S. Feng, X. Feng, Y. Feng, S. Gabici, B. Gao, C. Gao, L. Gao, Q. Gao, W. Gao, W. Gao, M. Ge, L. Geng, G. Giacinti, G. Gong, Q. Gou, M. Gu, F. Guo, X. Guo, Y. Q. Guo, Y. Guo, Y. Han, H. He, H. He, J. He, X. He, Y. He, M. Heller, Y. Hor, B. Hou, C. Hou, X. Hou, H. Hu, Q. Hu, S. Hu, D. Huang, T. Huang, W. J. Huang, X. Huang, X. Y. Huang, Y. Huang, Z. Huang, X. Ji, H. Jia, K. Jia, K. Jiang, X. Jiang, Z. Jiang, M. Jin, M. Kang, T. Ke, D. Kuleshov, K. Kurinov, B. Li, Cheng Li, Cong Li, D. Li, F. Li, H. Li, H. C. Li, H. Li, J. Li, Jian Li, Jie Li, K. Li, W. Li, X. Li, Xin Li, Y. Li, Zhe Li, Zhuo Li, E. Liang, Y. Liang, S. Lin, B. Liu, C. Liu, D. Liu, H. Liu, H. Liu, J. Liu, J. Liu, J. Liu, M. Liu, R. Liu, S. M. Liu, W. Liu, Y. Liu, Y. Liu, R. Lu, Q. Luo, H. Lv, B. Ma, L. Ma, X. Ma, J. Mao, Z. Min, W. Mitthumsiri, H. Mu, Y. Nan, A. Neronov, Z. Ou, B. Pang, P. Pattarakijwanich, Z. Pei, M. Qi, Y. Qi, B. Qiao, J. Qin, D. Ruffolo, A. S'aiz, D. Semikoz, C. Shao, L. Shao, O. Shchegolev, X. Sheng, F. Shu, H. Song, Y. Stenkin, V. Stepanov, Y. Su, Q. N. Sun, X. N. Sun, Z. Sun, P. Tam, Q. Tang, Z. Tang, W. Tian, C. Wang, C. Wang, G. Wang, H. Wang, H. H. Wang, J. Wang, K. Wang, L. Wang, L. Y. Wang, P. Wang, R. Wang, Weicang Wang, X. Wang, X. Wang, Y. Wang, Y. Wang, Y. Wang, Z. H. Wang, Z. Wang, Zhen Wang, Zhenghan Wang, D. Wei, J. Wei, Y. Wei, T. Wen, C. Wu, H. Wu, S. Wu, X. Wu, Y. Wu, S. Xi, J. Xia, J. Xia, G. Xiang, D. Xiao, G. Xiao, G. Xin, Y. Xin, Y. Xing, Z. Xiong, D. Xu, R. Xu, R. Xu, W. Xu, L. Xue, D. Yan, J. Yan, T. Yan, C. Yang, F. Yang, F. Yang, H. W. Yang, J. Yang, L. L. Yang, M. Yang, R. Yang, S. B. Yang, Y. Yao, Z. Yao, Y. Ye, L. Yin, N. Yin, X. You, Z. You, Y. Yu, Q. Yuan, H. Yue, H. Zeng, T. Zeng, W. Zeng, M. Zha, B. Zhang, F. Zhang, H. M. Zhang, H. Zhang, J. Zhang, L. X. Zhang, Li Zhang, P. Zhang, P. P. Zhang, R. Zhang, S. B. Zhang, S. Zhang, S. Zhang, X. Zhang, X. Zhang, Y. Zhang, Yi. Zhang, Yong Zhang, B. Zhao, J. Zhao, L. Zhao, L. Zhao, S. Zhao, F. Zheng, B. Zhou, H. Zhou, J. Zhou, M. Zhou, P. Zhou, R. Zhou, X. Zhou, C. G. Zhu, F. Zhu, H. Zhu, K. Zhu, X. Zuo   +278 more
semanticscholar   +1 more source

Statistical study of electron flux in Martian space environment

地球与行星物理论评, 2022
The distributions of electrons at different regions in the Martian space environment play a significant role in the planet's evolution. However, the distributions of electrons in the entire Martian space remain unclear. Here, using MAVEN data during 2015～
Zhizhong Guo, Huishan Fu, Yangyang Liu
doaj   +1 more source

Gamma-ray Bursts at the Highest Energies

Universe, 2021
Emission from Gamma-ray bursts is thought to be powered mainly by synchrotron radiation from energetic electrons. The same electrons might scatter these synchrotron seed photons to higher (>10 GeV) energies, building a distinct spectral component ...
Lara Nava
doaj   +1 more source

Assessment of the quality of very high-energy electron radiotherapy planning [PDF]

Radiotherapy and Oncology, 2016
To assess the quality of very-high energy electron (VHEE) scanning pencil beam radiation therapy in relation to state-of-the-art volumetric modulated arc therapy (VMAT) and to determine the extent of its application.We planned five clinical cases with VHEE scanning pencil beams of 100 and 120MeV, equally distributed in a coplanar arrangement around the
Bianey, Palma, Magdalena, Bazalova-Carter, Björn, Hårdemark, Elin, Hynning, Bradley, Qu, Billy W, Loo, Peter G, Maxim   +6 more
openaire   +2 more sources

Dosimetry for New Radiation Therapy Approaches Using High Energy Electron Accelerators

Frontiers 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, Andreas Schüller, Enrico Brunetti, Anna Subiel, Rafael Kranzer, Rafael Kranzer, Thomas Hackel, Markus Meier, Ralf-Peter Kapsch, Dino A. Jaroszynski   +9 more
doaj   +1 more source

Treatment planning of intracranial lesions with VHEE: comparing conventional and FLASH irradiation potential with state-of-the-art photon and proton radiotherapy

Frontiers in Physics, 2023
The treatment of deep-seated tumours with electrons of very high energies (VHEE, 70–150 MeV) has already been explored in the past, suggesting that a dosimetric coverage comparable with state-of-the-art proton (PT) or photon radiotherapy (RT) could be ...
A. Muscato, A. Muscato, A. Muscato, L. Arsini, L. Arsini, G. Battistoni, L. Campana, D. Carlotti, D. Carlotti, F. De Felice, A. De Gregorio, A. De Gregorio, M. De Simoni, M. De Simoni, C. Di Felice, Y. Dong, G. Franciosini, G. Franciosini, M. Marafini, M. Marafini, I. Mattei, R. Mirabelli, R. Mirabelli, S. Muraro, M. Pacilio, L. Palumbo, L. Palumbo, V. Patera, V. Patera, A. Schiavi, A. Schiavi, A. Sciubba, A. Sciubba, M. Schwarz, S. Sorbino, V. Tombolini, M. Toppi, M. Toppi, G. Traini, A. Trigilio, A. Trigilio, A. Sarti, A. Sarti   +42 more
doaj   +1 more source