نتایج جستجو برای: srim code

تعداد نتایج: 167967  

Journal: :iranian journal of science and technology (sciences) 2009
m. haji-shafeieha

beryllium chemical combination has a considerable effect on the design and fabrication of the241am9be neutron source. in this investigation the beryllium combinations were studied as a generator ofneutrons with various mass percentage, and the neutron yields were also calculated using the results of thealice and srim codes calculations per unit incident charge. the neutron yields of beryllium ...

Journal: :iranian journal of radiation research 0
h. noshad nuclear science research school, nuclear science & technology research institute (nstri), atomic energy organization of iran, tehran, iran

background: high-velocity carbon ion beams represent the most advanced tool for radiotherapy of deep-seated tumors. currently, the superiority of carbon ion therapy is more prominent on lung cancer or hepatomas. materials and methods: the data for lateral straggling and projected range of monoenergetic 290 mev/u (3.48 gev) carbon ions in muscle tissue were obtained from the stopping and range o...

2004
P. H. Stoltz S. A. Veitzer R. H. Cohen A. W. Molvik J.-L. Vay

Abstract We present comparisons of the CRANGE code to other well-known codes, SRIM and ASTAR, and to experimental results for ion-material interactions such as energy loss per unit length, ion range, and ion induced electron yield. These ion-material interaction simulations are relevant to the electron cloud effect in heavy ions accelerators for fusion energy and high energy density physics. Pr...

2015
Yong Gang Li Yang Yang Michael P. Short Ze Jun Ding Zhi Zeng Ju Li

SRIM-like codes have limitations in describing general 3D geometries, for modeling radiation displacements and damage in nanostructured materials. A universal, computationally efficient and massively parallel 3D Monte Carlo code, IM3D, has been developed with excellent parallel scaling performance. IM3D is based on fast indexing of scattering integrals and the SRIM stopping power database, and ...

Journal: :Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2004

ژورنال: سنجش و ایمنی پرتو 2020

Damage of tungsten due to helium and argon ions of a PF device was studied. Tungsten samples were irradiated by 20 shots of the plasma focus device with argon and helium as working gases, separately. The tungsten surface was analyzed by SEM, before and after irradiation. SEM revealed dense blisters with diameters of a few hundred nanometers, on the samples which were irradiated by helium ions, ...

Journal: :iranian journal of science and technology (sciences) 2008
m. r eskandari

the ionization effects of charged particles produced in neutron interactions for boron neutroncapture therapy are considered here using srim monte carlo code. the estimated values of these effects ina plexiglas acrylic phantom are shown to agree well with the available experimental values in high boronconcentration areas. as expected, the ionization effects from lithium and alpha particles are ...

Hossein Tavakoli-Anbaran, Somayeh Jahanfar

Introduction: Proton therapy is a type of radiation treatment that it uses protons to treat cancer. Because of the protons’ unique ability to distribute the radiation dose more directly to the tumor, it minimizes the damage to nearby healthy tissues. The rate of energy loss by the ion in the target is called stopping power. The total stopping power is sum nuclear and electroni...

ژورنال: سنجش و ایمنی پرتو 2016

Neutron spectrum and intensity that produced from H218O target bombardment were determined. SRIM and ALICE computer codes were applied to H218O target and its Titanium window for 17 MeV incident proton beam from cyclotron Cyclone30. Using calculated neutron intensity and spectrum as the source, equivalent dose rate at a certain distance from the target was calculated by the MCNP computer code a...

2007
M. L. Benabderrahmane

The original Lindhard-Scharff-Schiøtt (LSS) theory and the more recent Tilinin theory for calculating the nuclear and electronic stopping powers of slow heavy ions are compared with predictions from the SRIM code by Ziegler. While little discrepancies are present for the nuclear contribution to the energy loss, large differences are found in the electronic one. When full ion recoil cascade simu...

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