نتایج جستجو برای: کد geant4

تعداد نتایج: 7627  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم پایه 1388

در این پایان نامه تولید پایون خنثی از فوتون های پر انرژی توسط برنامه geant4 شبیه سازی شده است. هندسه این شبیه سازی از آزمایش انجام شده در آزمایشگاه مامی آلمان در سال 2004 گرفته شده است. این شبیه سازی برای کاهش محاسبات و دقیقتر شدن نتیجه به دو بخش تقسیم شده است. 1-تولید فوتون پر انرژی از پدیده تابش ترمزی که از الکترون پر انرژی استفاده شده است. 2- تولید پایون خنثی از فوتون که با توجه به نرخ تولید...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2016

Journal: :Journal of Physics: Conference Series 2012

Journal: :iranian journal of radiation research 0
a.d. esmaeeli department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran m. pouladian department of medical radiation engineering, science and research branch, islamic azad university, tehran, iran a.s. monfared department of medical physics, babol university of medical sciences, babol, iran s.r. mahdavi department of medical physics, tehran university of medical sciences, tehran, iran d. moslemi department of radiation oncology, babol university of medical sciences, babol, iran

background: to reduce the dose to normal tissues surrounding the treated breast, a uniform magnetic field was used within a humanoid phantom in breast radiotherapy. materials and methods: monte carlo simulations were performed with geant4, irradiating humanoid phantoms in a magnetic field. to reconstruct phantoms, computed tomography (ct) data slices of four patients were used for the monte car...

2003
D. H. Wright D. Aston M. L. Kocian H. Marsiske W. S Lockman D. C. Williams A. W. Weidemann J. R. Wilson T. B. Moore

D.H. Wright, D. Aston, M.L. Kocian, H. Marsiske SLAC, Stanford, CA 94025, USA W.S Lockman, D.C. Williams University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, CA 95064, USA A.W. Weidemann, J.R. Wilson University of South Carolina, Columbia, SC 29208, USA T.B. Moore University of Massachusetts, Amherst, MA 01003, USA A.J. Lyon University of Manchester, Manchester M1...

2003
L. Urbán

Angular distributions of charged particles obtained with Geant4 simulation are compared with experimental data and with the Highland parametrisation.

2011
Adriana Bungau Robert Cywinski Roger Barlow Cristian Bungau Philip King James Lord

The energy deposition on the ISIS muon target and the temperature profiles are analysed in this paper. The thermal modelling is performed using the GEANT4 Monte Carlo code. Heat deposition patterns are also simulated for alternative target geometries. Energy deposition in the collimators is also discussed.

2006
T Marrodán Undagoitia F von Feilitzsch M Göger-Neff C Grieb K A Hochmuth L Oberauer W Potzel M Wurm

Using Geant4 Monte-Carlo simulations the potential of the Low Energy Neutrino Astronomy (LENA) liquid scintillator detector for the investigation of a possible proton decay within the channel p → Kν is discussed. Special emphasis is given to the study of background events.

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