Results 271 to 280 of about 130,057 (295)

Characteristics of focused very high energy electron (VHEE) beams in radiotherapy

2023
Very High Energy Electron (VHEE) beams represent a promising alternative for treating deep-seated tumors. However, VHEE beams generate quasi-uniform dose distribution along the beam path, leading to healthy tissue overexposed. Focused VHEE beams are a revolutionary radiotherapy technology that enables concentrating doses into a small and well-defined ...
Liu,Zhengzheng, Yang,Zhiyong, Fan,Danlei, Wang,Jian, Fan,Kuanjun   +4 more
openaire   +1 more source

Electron propagator in a strong electromagnetic field in the very-high-energy limit

Physical Review D, 1990
The solution of the Klein-Gordon and Dirac equation for the propagator (Green's function) in the very-high-energy limit (1/{ital E} approximation) is studied in the context of quantum beamstrahlung.'' The results obtained are necessary to consider bremsstrahlung energy loss by electrons and positrons in high-energy {ital e}{sup +}{ital e}{sup {minus ...
openaire   +2 more sources

Cryogenic Accelerator Design for Compact Very High Energy Electron Therapy

2022
We report on the development of a cryogenic X-band (11.424 GHz) accelerator to provide electron beams for Very High Energy Electron therapy. The distributed coupling linac is designed with a 135° phase advance, capable of producing a 100 MeV/m accelerating gradient in a one-meter structure using only 19 MW when operating at 77 K.
Snively, Emma, Borzenets, Valery, Bowden, Gordon, Krasnykh, Anatoly, Li, Zenghai, Loo, Bill, Nantista, Christopher, Oriunno, Marco, Shumail, Muhammed, Tantawi, Sami   +9 more
openaire   +1 more source

Energy density function determination in very-high-resolution electron-beam lithography

Journal of Vacuum Science & Technology B: Microelectronics Processing and Phenomena, 1990
A proximity effect correction algorithm requires an accurate knowledge of the energy density function (EDF) deposited in the electron resist layer. In case of high-resolution electron-beam lithography (EBL), whenever the required resolution is below 0.5 μm, forward and large-angle backward scattering contribution has to be carefully analyzed.
M. Gentili, L. Grella, A. Lucchesini, L. Luciani, L. Mastrogiacomo, P. Musumeci   +5 more
openaire   +1 more source

Using multiple scattering measurements of very high energy electrons for medical imaging

Medical Imaging 2026: Physics of Medical Imaging
electronCT (eCT) is an imaging method, which uses the multiple scattering of electrons to acquire images of unknown objects. This imaging method is a candidate for image-guided radiotherapy with very high energy electrons (100-250 MeV). In eCT, a low emittance pencil beam is propagated through an object and the scattering of the beam is quantified. The
Abel, Aenne, Braga da Rosa, Leticia, De Silva, Malinda, Herkert, Adrian, Huth, Lennart, Schütze, Paul, Spannagel, Simon   +6 more
openaire   +2 more sources

Relative Insensitivity to Inhomogeneities on Very High Energy Electron Dose Distributions

2017
Proceedings of the 8th Int.
Lagzda, Agnese, Angal-Kalinin, Deepa, Jones, James, Jones, Roger, Kirkby, Karen   +4 more
openaire   +1 more source

Ionization at the origin of an electron pair of very high energy

Il Nuovo Cimento, 1956
W. Wolter, M. Miesowicz
openaire   +1 more source

Very high-energy electrons as radiotherapy opportunity

The European Physical Journal Plus
Jade Fischer, Lucy Whitmore, Colleen Desrosiers, Suzie Sheehy, Magdalena Bazalova-Carter   +4 more
openaire   +1 more source

A method of imaging ultrathin foils with very low energy electrons

Ultramicroscopy, 2012
Ilona Müllerová, Ludek Frank
exaly  

Geant4 physics processes for microdosimetry simulation: Very low energy electromagnetic models for electrons in silicon

Nuclear Instruments & Methods in Physics Research B, 2012
Melanie Raine, Marc Gaillardin, P Paillet   +2 more
exaly