نتایج جستجو برای: range straggling

تعداد نتایج: 667729  

Journal: :Aerospace 2021

Understanding the radiation environment near lunar surface is a key step towards planning for future missions to Moon. However, complex variety of energies and particle types constituting space makes process replicating such very difficult in Earth-based laboratories. Radiation transport codes provide practical alternative covering wider range energy, angle, type than can be experimentally atta...

2005
Marcus H. Mendenhall Robert A. Weller

An algorithm has been developed for the GEANT4 Monte-Carlo package for the efficient computation of screened Coulomb interatomic scattering. It explicitly integrates the classical equations of motion for scattering events, resulting in precise tracking of both the projectile and the recoil target nucleus. The algorithm permits the user to plug in an arbitrary screening function, such as Lens-Je...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1390

سازند سروک در برش تنگ باولک، جنوب ایلام شامل 870 متر سنگ آهک، سنگ آهک رسی، سنگ آهک دولومیتی، سنگ آهک گلوکونیتی، سنگ آهک پیریتی و سنگ آهک چرتی است. با مطالعه 117 نمونه از نهشته های سازند سروک واقع در تاقدیس کبیرکوه، بیواستراتیگرافی بر اساس فرامینیفرا و چینه نگاری سکانسی این نهشته ها مورد بررسی قرار گرفت. مطالعات انجام شده بر روی فرامینیفرا در این برش منجر به شناسایی 35 گونه از 14 جنس متعلق به فر...

Journal: :Nuclear Instruments and Methods in Physics Research 1982

Journal: :The European Physical Journal D 2013

2004
Robert A. Weller

An algorithm has been developed for the GEANT4 Monte-Carlo package for the efficient computation of screened Coulomb interatomic scattering. It explicitly integrates the classical equations of motion for scattering events, resulting in precise tracking of both the projectile and the recoil target nucleus. The algorithm permits the user to plug in an arbitrary screening function, such as Lens-Je...

2006
Charles M. Ankenbrandt Rolland Johnson

Statement of the problem or situation that is being addressed typically, one to three sentences. Physics experiments often use low-energy beams of unstable particles that stop in a target in order to provide high sensitivity to rare processes while reducing backgrounds. However, the stopping rate in the target is limited by the kinematics of the production process and by multiple scattering and...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2014
Pablo de Vera Isabel Abril Rafael Garcia-Molina

The depth-dose distribution of proton beams in materials currently used in dosimetry measurements, such as liquid water, PMMA or graphite are calculated with the SEICS (Simulation of Energetic Ions and Clusters through Solids) code, where all the relevant effects in the evaluation of the energy deposited by the beam in the target are included, such as electronic energy-loss (including energy-lo...

2004
Marcus H. Mendenhall Robert A. Weller

An algorithm has been developed for the GEANT4 Monte-Carlo package for the efficient computation of screened Coulomb interatomic scattering. It explicitly integrates the classical equations of motion for scattering events, resulting in precise tracking of both the projectile and the recoil target nucleus. The algorithm permits the user to plug in an arbitrary screening function, such as Lens-Je...

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