The activity concentration of Ra, Th and K was determined in solid and liquid samples collected from the TSP Fertilizer Factory, Chittagong, Bangladesh. A total of 18 samples of seven different kinds (including liquid and solid wastes) were collected and analyzed by gamma ray spectrometry technique using a high purity germanium (HPGe) detector of 40% relative efficiency. The analysis of the liq...

Germanium strip detectors combine superior spectroscopy typical of germanium detectors with good spatial resolution. Our work has been to develop a 2-dimensional position readout of a 5 5 strip X-Y detector. The prototype device uses two capacitive charge division strings. Each string is read{out by two 13-bit ADCs, one on each end of the string. The four data channels are stored as an event li...

Introduction Natural and artificial radionuclides are the main sources of human radiation exposure, which enter the food chain from the environment. Radionuclides can affect human health by transferring from soil to plants and entering the human body. In this research study, we aimed to determine the activity concentrations of radionuclides and calculate the average annual committed effective d...

Introduction: This Study has was  carried out to measure and detect the natural occurred radionuclide content including 226Ra, 232Th and 40K in the  Nile River sediments at various locations in Upper Egypt, from Aswan to El-Minya. Additionally, we determine the absorbed dose rate, the annual effective dose equivalent, and excess lifetime cancer risk also has been calculated. Material and Metho...

background: a substantial part of the public’s natural radiation dose is due to the inhalation of radon gas. most of the exposure occurs indoors where the airborne concentration of radon and its decay products is usually higher than outdoors. materials and methods: radon activity concentration has been measured twice in 50 classrooms in 5 levels (10 each) during summer and winter using solid-st...

Background: Inspection of the level of radioactivity from radionuclides in soil is important for the assessment of the exposure to natural radiation. Materials and Methods: Ten samples from soil were collected from different sites of Kirkuk-IRAQ and the level of natural radioactivity was measured using gamma-ray spectrometry based on a high purity germanium (HPGe) detector. Results: It was foun...

Germanium orthogonal strip detectors have been produced using amorphous-semiconductor contacts. The amorphoussemiconductor contact fabrication process is relatively simple, and it is capable of producing fine-pitched electrode structures. The bipolar blocking behavior of the amorphoussemiconductor contact permits its use on both sides of a detector, replacing conventional B ion implanted and Li...

The measurement of β -decay rates in plasma, simulating stellar-like conditions, is high interest for the investigation radionuclides involved nuclear astrophysics processes. In new PANDORA plasma trap, to be built at INFN—Laboratori Nazionali del Sud Catania (Italy), will estimated by detecting γ -rays emitted daughter nuclei trapped confined plasma. present work describes efficiency High Puri...