نتایج جستجو برای: alpha particles

تعداد نتایج: 355463  

Journal: :Computer Physics Communications 2012
A. A. Azooz S. H. Al-Nia'emi M. A. Al-Jubbori

In this work, the empirical parameterization describing the alpha particles’ track depth in CR-39 detectors is extended to describe longitudinal track profiles against etching time for protons and alpha particles. MATLAB based software is developed for this purpose. The software calculates and plots the depth, diameter, range, residual range, saturation time, and etch rate versus etching time. ...

ژورنال: سنجش و ایمنی پرتو 2020

In this study, the detection of alpha particles in the high current mode is investigated in the presence of two gaseous electron multipliers in the micro-pattern structures. Thick Gas Electron Multiplier (TGEM) and an Electron Multiplier Assemblies (EMA) were designed and constructed as amplification gap in the detector chamber. An ion chamber is employed to measure the current of interaction b...

فرمانی, علی, نادری, داریوش,

Using Langevin dynamics and the dissipative nature of the fission process, we have studied dynamical variations of nucleus from the formation of the compound nucleus to separation stage of two fission fragments. During this dissipative process, particles such as neutron, proton, alpha particle and gamma ray emit from the compound system. In the present work, the number of emitted particles usin...

Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity. Natural radioactivity transfers radionuclides into the environment and poses radiation hazards to people's health. Therefore, the present study aimed to determine the radon concentration an...

Journal: :The Journal of Physical Chemistry 1952

Journal: :Progress of Theoretical Physics 1956

Journal: :Journal of radiation research 2004
Mieczysław Puchała Zofia Szweda-Lewandowska Juegen Kiefer

Human erythrocytes were exposed to gamma-rays and alpha-particles to assess radiation-induced membrane damage and hemoglobin oxidation and denaturation. With all parameters measured, the alpha-particles proved to be less efficient than the gamma-rays. The time-dependence of hemolysis showed also clear differences: with the gamma-rays the process was faster, reaching saturation after 40-90 min (...

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