Atomic radiation

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Summary of Substances Science Doctoral Thesis: Study on the transportation of some natural and manufacturing radiation units from soil to vegetables and tea by modern nuclear techniques

Aim of the thesis: Development of a new method for determining concentration of the radionuclides in enviromental samples by mean of gamma spectroscopy. Establishing a data set of the soil-plant transfer factor (TF) of radionuclides 238U, 232Th and 40K for some vegetables in Truong Sa island and that of 238U, 232Th, 40K and 137Cs for tea tree from Luong My farm, Hoa Binh province, Vietnam and evaluate the influence of natural radionuclide concentration to the soil-plant transfer process of artificial radionuclide 137Cs.

30p extraenglish 24-05-2021 23 3 Download

Summary of doctoral thesis of Materials science: Assessment of natural radioactivity in some building materials used in Laos PDR

The objectives of the thesis is: Determination of the concentration of the Naturally Occurring Radioactive Materials (NORM) in some building materials commonly used in Lao PDR such as cement, sand, etc. by gamma spectrometers using NaI(Tl) and HPGe detectors.

27p larachdumlanat129 20-01-2021 50 3 Download

Euratom success stories in facilitating pan-European education and training collaborative efforts

The European Atomic Energy Community (Euratom) Research and Training framework programmes are beneﬁtting from a consistent success in pursuing excellence in research and facilitating Pan European collaborative efforts across a broad range of nuclear science and technologies, nuclear ﬁssion and radiation protection.

7p christabelhuynh 29-05-2020 7 0 Download
X-ray Spectrometry

The characteristics lines in X-ray spectra result from electronic transitions between inner atomic orbitals. The X-ray spectra for most heavy elements are much simpler than the UV/Vis spectra observed in ICP-OES, for example. (Only a few lines!!!) Big difference between X-ray and UVVis: The radiation is ionizing, and doesn’t just excite electrons to higher levels. Moseley’s law: Predicts the basic relationship of atom number and the frequency of the characteristic lines

24p qdung92ct 03-07-2012 79 16 Download
Introduction to Spectroscopy

The velocity at which radiation travels (or propagates) through a medium is dependent on the medium itself When radiation travels through a medium and does not undergo a frequency change, it cannot be undergoing a permanent energy transfer However, radiation can still interact with the medium – Radiation, an EM field, polarizes the electron clouds of atoms in the medium – Polarization is a temporary deformation of the electron clouds

14p qdung92ct 03-07-2012 72 5 Download