The radiolysis of purified water, its mixture with carbon dioxide, and also the addition salt potassium chloride isotope (40KCl) plant mass to this system were carried out in order study mechanism radiolytic processes taking place presence natural (40K) contained it. It revealed that 40KCl system, formation trace amounts molecular hydrogen is observed (in accord an insignificant dose radiation ...

background: since 40k is the most important natural radionuclide in the environment, its concentration was measured for all milk and milk powder samples consumed in tehran-iran. milk was chosen, since because it is a reliable indicator of the general population intake of certain radionuclide, and many environmental programs have been applied for its safety. materials and methods: measurements w...

The study investigates commercially available negative ion clothing, and evaluations are made using gamma-ray spectroscopy Geant4 Monte Carlo simulations. Observed to contain naturally occurring radioactive material (NORM), of the radiological risk arising from use these as items everyday wear, undergarments in particular. Organ doses were simulated MIRD5 mathematical female phantom, with incor...

In this paper, we present a method to estimate the number of reconfiguration steps that a time-constrained algorithm can accommodate. This analysis demonstrates how one would attack the problem of partitioning a particular algorithm into pieces to for run time reconfiguration execution on a Atmel 40K FPGA. Our method consist in evaluating algorithm operators execution time from data flow graph....

Coastal areas in Minami-soma City, Fukushima, Japan, were seriously damaged by radioactive contamination from the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident that caused multiple pollution by tsunami and radionuclide exposure, after the Great East Japan Earthquake, on 11 March 2011. Some areas will remain no-go zones because radiation levels remain high. In Minami-soma, only 26 perce...

introduction natural and artificial radionuclides are the main sources of human radiation exposure. these radionuclides, which are present in the environment, can enter the food chain. rice is one of the most important food components in iran. radionuclides by transferring from soil to rice and entering the human body can affect human health. materials and methods fourteen samples of different ...

gamma-rays emitted from the ground surface relate to the primary mineralogy and geochemistryof the bedrock, and the secondary weathered materials. this information can contribute significantly to anunderstanding of the geochemical and pedogenetic history of a region. the main aim of this paper was to study the relationship between ground gamma-ray data and basement geochemistry in the lese catc...

We have produced and detected molecules using a p-wave Feshbach resonance between 40K atoms. We have measured the binding energy and lifetime for these molecules and we find that the binding energy scales approximately linearly with the magnetic field near the resonance. The lifetime of bound p-wave molecules is measured to be 1.0+/-0.1 ms and 2.3+/-0.2 ms for the ml=+/-1 and ml=0 angular momen...

We present results of experimental study of the gain bandwidth (GBW) of MgB2 hot electron-bolometer (HEB) mixers at 0.1THz and 0.4THz. Antenna integrated 0.25-1.5um2 area devices were made from thin MgB2 films deposited with a custom made HPCVD system. Film as thin as 15-45nm had a Tc from 35K to 40K. The GBW was found to be independent on the bias conditions, the bath temperature, and the LO f...

We develop a strong-coupling theory for the superfluidity of fermion pairing phase in a Bose-Fermi mixture. Dynamical screening, self-energy renormalization, and a pairing gap function are included self-consistently within the adiabatic limit (i.e., the phonon velocity is much smaller than the Fermi velocity). An analytical solution for the transition temperature (T(c)) is derived within reason...