Results 61 to 70 of about 1,940 (199)
Space Weather, Volume 24, Issue 10, October 2026.Abstract As crewed space missions set course for the Moon and beyond, astronauts will experience prolonged exposure to Galactic Cosmic Rays (GCR) and potentially intense Solar Proton Events (SPEs), both of which pose significant short‐ and long‐term health risks.
Sylvain Blunier +4 more
wiley +1 more source
, 2014 The fragmentation reactions of relativistic-energy nucleus-nucleus and proton-nucleus collisions were simulated using the Statistical Multi-fragmentation Model (SMM) incorporated with the Particle and Heavy Ion Transport code System (PHITS).
Tatsuhiko Sato +3 more
core +1 more source
Lead-free bismuth glass system towards eco-friendly radiation shielding applications
Results in Physics, 2023 In this study, the gamma-ray photon, electron, proton, helium ion, carbon ion, thermal neutron, and fast neutron interaction parameters of the (70-x)(Bi2O3 + ZnO) + x(V2O5 + TeO2) + 20B2O3 + 6.5SiO2 + 2.5Al2O3 + 1(CeO2 + Sb2O3) glass system were ...
Jamila S. Alzahrani +5 more
doaj +1 more source
トカマク型核融合実験装置におけるPHITSを用いた計算の現状 [PDF]
, 2016 核融合分野の核解析で以前から使用しているMCNPに比べ、ソースプログラムの入手のしやすさ、容易にグラフィック出力が得られるPHITSを2006年頃からトカマク型核融合実験装置の核解析に使用している。 PHITS使用に際し、ドーナツ形状のトーラス中性子体積線源を開発・整備し利用してきたが、並列化への対応等に伴いソースプラグラムの大幅な変更が行われたPHITS Ver2.50以降について対応できていなかった。今回新たに、PHITS Ver.2.82にトーラス中性子体積線源の整備を行った結果 ...
奥野, 功一 +11 more
core
Journal of Applied Clinical Medical Physics, Volume 27, Issue 8, August 2026.Abstract Aim Current radiotherapy (RT) guidelines for Cardiac Implantable Electronic Devices (CIEDs) are largely based on clinical management strategies and retrospective reports. This systematic review adopts a medical physics perspective to provide a critical, quantitative analysis of the technical evidence required for developing robust safety ...
Tiziana Malatesta +15 more
wiley +1 more source
Analytical Model for Estimating the Zenith Angle Dependence of Terrestrial Cosmic Ray Fluxes. [PDF]
PLoS ONE, 2016 A new model called "PHITS-based Analytical Radiation Model in the Atmosphere (PARMA) version 4.0" was developed to facilitate instantaneous estimation of not only omnidirectional but also angular differential energy spectra of cosmic ray fluxes anywhere ...
Tatsuhiko Sato
doaj +1 more source
Nuclear Engineering and Technology, 2023 We determined the radiation shielding properties for 10CaO–xPbO–(90-x) deteriorated silica gel (DSG) glass system (x = 20, 25, 30, 35, 40, and 45 mol.%).
P. Sopapan +7 more
doaj +1 more source
FitsGeo -- Python package for PHITS geometry development and visualization
CoRR, 2020 An easy way to define and visualize geometry for PHITS input files introduced. Suggested FitsGeo Python package helps to define surfaces as Python objects and manipulate them conveniently. VPython assists to view defined geometry interactively which boosts geometry development and helps with complicated cases.
openaire +2 more sources
Recent Improvements of Particle and Heavy Ion Transport code System: PHITS
EPJ Web of Conferences, 2017 The Particle and Heavy Ion Transport code System, PHITS, has been developed under the collaboration of several research institutes in Japan and Europe. This system can simulate the transport of most particles with energy levels up to 1 TeV (per nucleon ...
Sato Tatsuhiko +12 more
doaj +1 more source
Public Health Achievements in Rwanda: A 21st Century Transformation
Public Health Challenges, Volume 5, Issue 2, June 2026.This narrative review examines Rwanda's post‐2000 public health transformation using the WHO health system building blocks. It shows how strategic governance, universal health coverage via mutuelle de santé, community health workers, and digital health tools have driven substantial gains in maternal/child health, infectious disease control, and ...
Niyibizi Julius +2 more
wiley +1 more source