نتایج جستجو برای: geant4 dna

تعداد نتایج: 508519  

Journal: :Physics in medicine and biology 2005
Igor Pshenichnov Igor Mishustin Walter Greiner

We study energy deposition by light nuclei in tissue-like media taking into account nuclear fragmentation reactions, in particular, production of secondary neutrons. The calculations are carried out within a Monte Carlo model for heavy-ion therapy (MCHIT) based on the GEANT4 toolkit. Experimental data on depth-dose distributions for 135-400 A MeV (12)C and (18)O beams are described very well wi...

2010
José Manuel QUESADA Vladimir IVANCHENKO Anton IVANCHENKO Miguel Antonio CORTÉS-GIRALDO Gunter FOLGER Alex HOWARD Dennis WRIGHT

Geant4 native pre-equilibrium and de-excitation models are used for sampling of residual nucleus fragmentation in a number of generators of inelastic hadron/ion interaction with nuclei including QGS, FTF, Binary Cascade, QMD and some others. The pre-compound model is responsible for pre-equlibrium emission of protons, neutrons and light ions. The de-excitation model provides sampling of evapora...

Journal: :CoRR 2013
Kapil Arya Gene Cooperman Andrea Dotti Peter Elmer

Process checkpoint-restart is a technology with great potential for use in HEP workflows. Use cases include debugging, reducing the startup time of applications both in offline batch jobs and the High Level Trigger, permitting job preemption in environments where spare CPU cycles are being used opportunistically and efficient scheduling of a mix of multicore and single-threaded jobs. We report ...

2010
Adriana Bungau Robert Cywinski

The European Spallation Source (ESS) is one of Europe’s biggest and most prestigious science projects. ESS will be the world’s most powerful next generation neutron spallation source for research with neutrons, providing a unique tool for studies of the atomic structure and dynamics of matter. In this paper we use GEANT4 simulations to investigate the effects of spallation target material and i...

2008
Thomas J. Roberts Kevin Beard Dazhang Huang Shahid Ahmed Daniel M. Kaplan Linda Spentzouris

The G4beamline program [1] is a useful and steadily improving tool to quickly and easily model beamlines and experimental equipment without user programming. Unlike most accelerator physics codes, it easily handles a wide range of materials and fields, being particularly well suited for the study of muon and neutrino facilities. As it is based on the Geant4 toolkit [2], G4beamline includes most...

2009
Rosana de Souza e Silva Márcia Begalli Maria Grazia Pia Maximiano Martins Pedro Queiroz Filho

Various models of anthropomorphic phantoms have been developed in the past decades for usage in Monte Carlo simulation for radiation protection and other medical physics applications; they adopt two alternative approaches, either modelling the body components through analytical geometrical representations or through voxelized geometries. An original system has been developed associated with the...

2000
L. A. Anchordoqui T. P. McCauley T. Paul S. Reucroft J. D. Swain L. Taylor

We present a detailed simulation of the performance of water Cerenkov detectors suitable for use in the Pierre Auger Observatory. Using geant4, a flexible object-oriented simulation program, including all known physics processes, has been developed. The program also allows interactive visualization, and can easily be modified for any experimental setup.

2011
Takashi AKAGI Tsukasa ASO Bruce FADDEGON Akinori KIMURA Naruhiro MATSUFUJI Teiji NISHIO Chihiro OMACHI Harald PAGANETTI Joseph PERL Takashi SASAKI Daren SAWKEY Jan SCHÜMANN Jungwook SHIN Toshiyuki TOSHITO Tomohiro YAMASHITA Hajime YOSHIDA

Hyogo Ion Beam Medical Center, 1-2-1, Kouto, Shingu-cho, Ibo-gun, Hyogo, 679-5165, Japan Toyama National College of Technology, 1-2 Ebie-Neriya, Imizu, Toyama, 933-0293, Japan University of California San Francisco, San Francisco, CA, 94143-1708, USA Ashikaga Institute of Technology, 268-1, Omae-cho, Ashikaga, Tochigi, 326-8558, Japan National Institute for Radiology Science, 4-9-1, Anagawa, In...

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