Results 61 to 70 of about 2,973 (184)

A Monte Carlo study of proton LET calculations: Comparison between the codes PENHAN, FLUKA, and TOPAS

Medical Physics, Volume 53, Issue 3, March 2026.
Abstract Background Linear energy transfer (LET) is frequently used to characterize radiation quality in proton therapy and is an important quantity for radiobiological modeling. However, LET calculations can, in principle, vary between Monte Carlo (MC) codes, affecting consistency in treatment planning and relative biological effectiveness (RBE ...
D. Puerta, M. Anguiano, W. González
wiley   +1 more source

Characterizing the Signals and Backgrounds in a Low Earth Orbiting Cherenkov Detector, and Background Mitigation Strategies

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Cherenkov detectors have been used in space for decades to measure Galactic Cosmic Rays (GCRs), Solar Energetic Particles (SEPs) and trapped particles. We present proof‐of‐concept GRAS/Geant4 simulations to both show that a cubic fused silica Cherenkov detector with SiPM in LEO has a good sensitivity to SEP and GCR protons as a function of cut‐
C. S. W. Davis, F. Lei, K. Ryden, C. Dyer, G. Santin, P. Jiggens, M. Heil   +6 more
wiley   +1 more source

Using Geant4 in the BaBar Simulation [PDF]

, 2003
BABAR was the first large experiment to incorporate Geant4 into its detector simulation. Since July 2001, 1.5 x 10{sup 9} BABAR events have been produced using this simulation. In a typical e{sup +}e{sup -} {yields} {Upsilon} (4s) {yields} B{sup 0}{bar B}{sup 0} event, between 30 and 60 tracks are produced in the generator and propagated through the ...
BaBar Collaboration, Wright, D. H., Aston, D., Kocian, M. L., Marsiske, H., Lockman, W. S., Williams, D. C., Weidemann, A. W., Wilson, J. R., Moore, T. B., Lyon, A. J.   +10 more
openaire   +3 more sources

Simulating a scintillation fiber detector of the activities of ionizing radiation sources

Results in Physics, 2016
Computer simulation results are presented for a fiber sensor based on the Saint-Gobain Crystals BSF-60 scintillation fiber aimed to measure the activities of sources of ionizing radiation.
S.G. Novikov, A.V. Berintsev, V.V. Svetukhin, A.S. Alekseyev, A.A. Chertoriyskiy, R.A. Kuznetsov, V.V. Prikhodko   +6 more
doaj   +1 more source

DART: A Dual Aperture Relativistic Electron Telescope for Smallsats

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The precipitation of particles into the Earth's atmosphere is a primary loss mechanism of the radiation belt for which many unknowns remain. With the growing number of space mission concepts to solve them, less expensive alternatives such as CubeSats are being used.
Jorge Romero‐Minaya, Lauren W. Blum, Jared Cantilina, Patricio Ramos, Hong Zhao, Skyler Krantz, Xinlin Li   +6 more
wiley   +1 more source

Opticks: GPU ray traced optical photon simulation [PDF]

EPJ Web of Conferences
Opticks is an open source project that accelerates optical photon simulation by integrating NVIDIA GPU ray tracing, accessed via the NVIDIA OptiX API, with Geant4 toolkit based simulations.
Blyth Simon C.
doaj   +1 more source

Influence of Mars Topography on Neutral Surface Radiation: Modeling and MSL/RAD Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Since landing in 2012, the Radiation Assessment Detector (RAD) onboard the Mars science laboratory (MSL) Curiosity rover has encountered different local landscapes, which have induced variations in the local surface environment. The aim of this study is to include realistic and site‐specific local topography for any position in a radiation ...
Gabin Charpentier, Bent Ehresmann, Jingnan Guo, Salman Khaksarighiri, Rémi Bénacquista, Jean Christophe Malapert, Robert Ecoffet, Julien Mekki, Alexis Paillet, Sven Löffler, Robert F. Wimmer‐Schweingruber, Donald M. Hassler, Cary Zeitlin, Philippe Valet, Yves Gourinat   +14 more
wiley   +1 more source

FairRoot and ALICE O2 Multithreading Simulation [PDF]

EPJ Web of Conferences, 2019
To address the challenges of the major upgrade of the experiment, the ALICE simulations must be able to make efficient use of computing and opportunistic supercomputing resources available on the GRID.
Hˇrivnácˇová Ivana
doaj   +1 more source

The Constraint of Crewed Mars Missions Based on Current Radiation Dose Measurements

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Crewed missions to Mars will be a milestone of future space exploration programs. However, the absence of Earth's magnetic field leaves astronauts directly exposed to unattenuated energetic particles in deep space, primarily galactic cosmic rays (GCRs), resulting in significantly higher radiation levels and enhanced health risks. Understanding
Chao Zhang, Weihao Liu, Jingnan Guo, Mikhail Dobynde, Robert F. Wimmer‐Schweingruber   +4 more
wiley   +1 more source

On the Use of Large Intel Xeon Phi Clusters for GEANT4-Based Simulations

Cybernetics and Information Technologies, 2017
GEANT4 is the basic software for fast and precise simulation of particle interactions with matter. Along the way towards enabling the execution of GEANT4 based simulations on hybrid High Performance Computing (HPC) architectures with large clusters of ...
Ilieva Nevena, Lilkova Elena, Litov Leandar, Pavlov Borislav, Petkov Peicho   +4 more
doaj   +1 more source