نتایج جستجو برای: dosimetric characteristics monte carlo simulation

تعداد نتایج: 1231401  

Journal: :iranian journal of nuclear medicine 0
alireza sadremomtaz department of physics, faculty of science, university of guilan, rasht, iran zeinab telikani department of physics, faculty of science, university of guilan, rasht, iran

introduction: image quality and accuracy of in vivo activity quantification in spect are affected by collimator penetration and scatter components, especially in high energy imaging. these phenomena highly depend on the collimator characteristic and photon energy. the presence of penetrated and scattered photons from collimator in spect images degrades spatial resolution, contrast and image qua...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 1993
L Wang S L Jacques

Light reflectance by semi-infinite turbid media is modeled by a hybrid of Monte Carlo simulation and diffusion theory, which combines the accuracy of Monte Carlo simulation near the source and the speed of diffusion theory distant from the source. For example, when the turbid medium has the following optical properties--absorption coefficient 1 cm-1, scattering coefficient 100 cm-1, anisotropy ...

2008
Gordon McCabe

The purpose of this paper is to provide an introduction to the physics of scattering theory, to define the dosimetric concept of linear energy transfer in terms of scattering theory, and to provide an introduction to the concepts underlying Monte Carlo simulations.

2011
G. Aloise S. Vitanov

In this work, we employ a Monte Carlo (MC) approach to investigate the temperature dependence of the electron transport in wurtzite InN. The velocity-field characteristics of this material show a pronounced negative differential resistance, which is a requirement for the realization of transferred-electron devices. Based on the Monte Carlo simulation results we derive a hydrodynamic mobility mo...

Journal: :Indian Journal of Science and Technology 2016

Journal: :IOP Conference Series: Materials Science and Engineering 2018

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