A new type of radiation detector, a p-type modified electrode germanium diode, is presented. It is shown that the prototype displays, for the first time, a combination of features (mass, energy threshold and background expectation) required for a measurement of coherent neutrino–nucleus scattering in a nuclear reactor experiment. First results are presented from its calibration using sub-kiloel...

This research aimed to assess the levels of natural radionuclides in soil Riruwai mining area and evaluate radiological hazards associated with them. A total sixty samples were collected from four sampling sites during dry wet seasons. The concentrations uranium-238 (238U), thorium-232 (232Th), potassium-40 (40K) measured using an HPGe gamma-ray spectrometer, used estimate internal external gam...

The specific activity and spatial distribution of 238U, 232Th 40K were determined in the surface soil from Lișava uranium mining sector. This sector belongs to Banat district, an historically important area Romania (an with closed mines a radioactive waste dump). Gamma-ray spectrometry using high-purity germanium (HPGe) detector was used measure naturally occurring radionuclides soil. average a...

Background: Some Particular areas contain natural radionuclide at levels much higher than those usually present in earth's crust. The radiological impact of the use of zirconium ore in zirconium industry is due to internal exposure of the lung by alpha particles and external exposure of the body by the gamma rays. The result of gamma spectrometry measurement of the concentrations of th...

Within the scope of determining concentration uranium in ore samples by gamma-ray spectrometry, we tested a series machine-learning (ML) algorithms with database including 1288 HPGe gamma spectra measured Orano Mining. Instead detecting and identifying peaks, global interpretation is carried out. Two different approaches were used. First, reduced size dimension dataset selecting 728 acquired sa...

For the medical linear accelerators (linac) that utilize more than 10 MV of photon energy, components inside linac head become radioactivate during 10–15-year operating cycle. Prior to disposal, radioactive waste must be evaluated for activity, and same procedure should followed linacs. In Republic Korea, regulation methodology radioactivity evaluation is not established yet. this study, we emp...

Gamma production cross sections for neutron inelastic scattering, (n,2nγ ) and (n,3nγ ) reactions on 208Pb were measured at the Geel Electron Linear Accelerator (GELINA) from the respective thresholds up to at most 20 MeV. An unprecedented neutron energy resolution of 1.1 keV at 1 MeV (35 keV at 10 MeV) and a total uncertainty of about 5% was achieved for the integral gamma production cross sec...

The dissolution of the Soviet Union coupled with the growing sophistication of international terror organizations has brought about a desire to ensure that a sound infrastructure exists to interdict smuggled nuclear material prior to it leaving its country of origin. To combat the threat of nuclear trafficking, radiation portal monitors (RPMs) are deployed around the world to intercept illicit ...

groundwaters hydrochemistry of ayrakan and cheshmeh shotori areas and geochemistry of rare earth elements, indicate ayrakan alkali granite as the origin of uranium and other dissolved elements in groundwaters of these areas. geochemical and hydrogeochemical studies as well as the trend of uranium and thorium transition and mobility in aqueous environments of these areas indicate uranium adsorpt...