The recently developed 222Rn emanation standards that are based on polyethylene-encapsulated 226Ra solutions were employed for a first field-measurement application test to demonstrate their efficacy in calibrating passive integral radon monitors. The performance of the capsules was evaluated with respect to the calibration needs of electret ionization chambers (E-PERM®, Rad Elec Inc.). The enc...

Background: The activity concentrations of natural radionuclides in soil around a coal-fired thermal power plant of northwest China were investigated for assessing the radioactivity level. Materials and Methods: Soil samples were collected around the coal-fired thermal power plant and their radioactivity levels were determined using gamma ray spectrometry. Radiation hazards were assessed by rad...

Abstract In this study, the effect of various types fertilizers on natural radioactivity levels in agricultural soil was investigated research. The activity concentration 226Ra, 232Th, and 40K fertilizer samples were determined by using gamma-ray spectroscopy a high-purity germanium (HPGe) detector to determine concentrations 40K. for phosphate raw (2300-5400) Bq/kg, (9-53) (56-3000) respective...

Radioactive materials which occur naturally and expose people to radiation widely, are known by the acronym 'NORM'. Exposure NORM is often increased human activities, eg burning coal, making using fertilisers, oil gas production.
 Many natural contain radioactive elements (radionuclides). The earth's crust constantly leaks radon into our atmosphere. However, while level of individual expos...

In this study, the specific activity of natural and artificial radioactive elements was measured for 50 sediment samples collected from throughout Miankaleh wetland in northern Iran on southeastern side Caspian Sea using a High-Purity Germanium detector. Also, radiological parameters hazard indicators due to environmental gamma radiation caused by these nuclei were calculated distribution map R...

Wheat is one of the world’s most commonly consumed cereal grains. It originates from a type grass (Triticum) that grown in countless varieties worldwide. Bread wheat or common primary species. Several other closely related species include durum, spelt, emmer, einkorn, and Khorasan wheat. In addition to being major source starch energy, also provides substantial amounts number components which a...