Nuclear science Research Papers - Academia.edu (original) (raw)

Proccedings of the International Symposium on Solid State Dosimetry, Volume 3. 2016

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- Radiology, Radiation Protection, Radiation dosimetry (Physics), Radiotherapy

This research reports the annual effective dose of dwellers based on the finding of natural radioactivity concentrations in Malaysian tiles. A total of 30 tiles samples obtained from the manufacturer or bought directly from local hardware store. Natural radioactivity was analyzed using gamma spectrometry system for 12 h counting times. The activity concentration of 226 Ra, 232 Th, and 40 K in the analyzed samples ranged from 37.50-158.05 Bq kg-1 , 42.22-80.19 Bq kg-1 and 349.46-750.18 Bq kg-1 , respectively. The determined radium equivalent activity was below than the recommended limit of 370 Bq kg-1. The external dose received by dwellers due to natural radionuclides in tiles were projected for 1, 5, 10, 20 and 50 years through six exposure pathways using Resrad-build computer code. The results showed that the annual effective dose received by dwellers increased for the investigated timelines but still lower than the annual recommended limit of 1500 µSv. The simulation result also indicates that radon gas was the primary radiation exposure which contributes 80-94 % from the total radiation exposure to dwellers.

- by Shittu Abdullahi
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- Nuclear Physics, Nuclear science
- by Stephane Chauvie and +4
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- Biomedical Engineering, Nuclear science, Object Oriented Technology

The activity concentrations of 226 Ra, 232 Th, and 40 K from 102 building materials samples were determined using a high-purity germanium (HPGe) detector. The activity concentrations were evaluated for possible radiological hazards to the human health. The excess lifetime cancer risks (ELCR) were also estimated, and the average values were recorded as 0.42 ± 0.24 Â 10 À3 , 3.22 ± 1.83 Â 10 À3 , and 3.65 ± 1.85 Â 10 À3 for outdoor, indoor, and total ELCR respectively. The activity concentrations were further subjected to RESRAD-BUILD computer code to evaluate the long-term radiation exposure to a dweller. The indoor doses were assessed from zero up to 70 years. The simulation results were 92 ± 59, 689 ± 566, and 782 ± 569 mSv y À1 for indoor external, internal, and total effective dose equivalent (TEDE) respectively. The results reported were all below the recommended maximum values. Therefore, the radiological hazards attributed to building materials under study are negligible.

- by Shittu Abdullahi
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- Nuclear science
- by Christophe Destouches and +1
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- Nuclear science, Nuclear Science and engineering, Interdisciplinary Engineering
- by Eugene Normand
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- Biomedical Engineering, Space flight, Heavy Ions Physics, Nuclear science
- by Giacomo Cuttone
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- Biomedical Engineering, British, Humans, Melanoma
- by Volkan Seker
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- Monte Carlo Simulation, Modeling, Monte Carlo, Simulation
- by Prof. Dr. Shaban Harb and +1
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- Dose rate, Nuclear science, Indexation, Natural Radioactivity
- by Robert Miyaoka
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- Biomedical Engineering, Image Processing, Computed Tomography, Data acquisition

ABSTRACT The radioactivity measurements in food crops and their diet derivatives and farm soil samples from Abeokuta, one of the elevated background radiation areas in Nigeria have been carried out in order to determine the concentration... more

- by Amber SCIRP
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- Nuclear science
- by Carl Stoots
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- Fluid Mechanics, Hydrogen Production, Current Density, Electric Fields
- by Eric Delagnes
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- Biomedical Engineering, High Energy Physics, Semiconductor Devices, Science and Technology
- by Uwe Haberkorn
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- Algorithms, Biomedical Engineering, Animal Studies, Image Quality
- by Nerine Cherepy and +2
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- Biomedical Engineering, Optical Design, Nuclear science, High Resolution
- by Sylvain Girard and +2
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- Biomedical Engineering, Heavy Ions Physics, Transient analysis, Prediction Model
- by J. Apostolakis and +1
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- Biomedical Engineering, Nuclear science, Object Oriented Technology
- by Alfio Pappalardo
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- Biomedical Engineering, Positron Emission Tomography, Nuclear science, Fill Factor
- by Roberto Battiston
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- Biomedical Engineering, Quantum Efficiency, Nuclear science, High Resolution
- by Robert Shuler
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- Biomedical Engineering, Digital Circuits, Built in self test, Digital Logic
- by Artur Szostak
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- Biomedical Engineering, Pattern Recognition, High Energy Physics, Compute Unified Device Architecture NVIDIA CUDA
- by Jan Wessel and +1
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- Bioinformatics, Biomedical Engineering, Computed Tomography, Photonic Integrated Circuits
- by Carl Stoots
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- Experimental Research, System Analysis, Research and Development, Hydrogen Production
- by Sylvain Girard
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- Biomedical Engineering, Confocal Microscopy, X Rays, Low Dose
- by Vivek Nagarkar
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- Biomedical Engineering, X-ray imaging, Material Characterization, Nuclear science
- by Eric Harmon
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- Physics, Biomedical Engineering, Medical Imaging, High Energy Physics
- by Paolo Finocchiaro
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- Biomedical Engineering, Positron Emission Tomography, Nuclear science, Fill Factor
- by William Curt Hunter
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- Biomedical Engineering, Data Mining, Signal Processing, Tomography
- by Jinkyun Park
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- Biomedical Engineering, Situation awareness, Human Factors Engineering, Control system
- by Paul Christian
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- Biomedical Engineering, Positron Emission Tomography, Maximum Likelihood, Attenuation Correction
- by Xue-Nong Chen and +1
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- Nuclear science
- by Richard Kouzes
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- Biomedical Engineering, Nuclear science, Gamma Ray
- by Freek Beekman
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- Biomedical Engineering, Image Processing, Molecular Imaging, Data Reduction
- by Rolf Dr. Michel and +1
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- Dose rate, Nuclear science, Indexation, Natural Radioactivity
- by David Espinosa
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- Biomedical Engineering, Field-Programmable Gate Arrays, Heavy Ions Physics, Field Programmable Gate Array
- by Stefano Bagnasco
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- Biomedical Engineering, Image Processing, Breast Cancer, Neural Network
- by Jonathan Grindlay
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- Biomedical Engineering, Nuclear science, High Resolution, Gamma Ray
- by Maurice Glaser and +1
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- Biomedical Engineering, Monte Carlo Simulation, Large Hadron Collider, Polyethylene
- by Anil Agrawal
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- Biomedical Engineering, RADIATION DAMAGE, Solar Cell, Photovoltaic Cell

ABSTRACT The main objective of this paper is to analyze the current status of high-level nuclear waste disposal along with presentation of practical perspectives about the environmental issues involved. Present disposal designs and... more

- by Amber SCIRP
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- Nuclear science
- by Jan Tõke and +1
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- Biomedical Engineering, Time of Flight, Pulse Shaping, Nuclear Reactions
- by Loick Verger
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- Biomedical Engineering, Signal Processing, Monte Carlo Simulation, Finite Element
- by C. Poivey
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- Biomedical Engineering, Nuclear science
- by A. Fernandez
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- Biomedical Engineering, Monte Carlo, Dose rate, Nuclear reactor