Abstract Vietnam has little data on radionuclide concentrations in milk, despite steadily increasing domestic consumption. Eight milk brands were investigated by gamma-spectrometry, and the resulting ingestion dose was calculated. The 232 Th, 226 Ra, 137 Cs, 40 K varied from 0.60 ± 0.19 to 1.21 0.24, 1.45 0.18 2.45 below detection limit 0.13 0.06, 341 6 387 7 Bq/kg (dry w.t). total average Annu...

[1] We measured the activities of 210 Pb, 226 Ra, 238 U and 137 Cs in a suite of ice-rafted sediments (IRS) from the Arctic Ocean in an attempt to assess the interaction of sea ice sediments and surface water. The concentrations of these nuclides were compared to those of the benthic sediments in the coastal and shelf regions of the Arctic Ocean, which are believed to be the major source region...

background: a few elements of soil are radioactive. soil can transfer radionuclide into plants feeding human. sometimes their   levels are as high as to be concern of human healthy. rice has an important share for iranian foods especially in north of iran. therefore we decided to obtain radionuclides concentration emitting g rays in lahijan city (northern iran) rice fields using g spectroscopy....

This study was carried out to determine the presence of main radionuclides from natural and artificial radioactivity in soil Kosovo, using gamma-ray spectroscopy. The mean activity concentration for Ra-226, Th-232, K-40, Cs-137 22.32 ± 1.41, 22.14 1.31, 358.16 8.85, 12.94 0.44 Bq/kg, respectively. Radium equivalent ranged 47 100 Bq/kg. calculated values gamma index (Iγ), external hazard (Hex), ...

Abstract Soil and sand samples were collected from eight different locations in the Al-Dakhiliya governorate, Sultanate of Oman to determine evaluate natural artificial radioactivity levels. The activity concentrations radionuclides 137 Cs, 226 Ra, 40 K, 235 U 228 Ac measured using high resolution gamma-ray spectroscopy detectors (HPGe detectors). In addition, radiation hazard indexes evaluated...

INTRODUCTION Cervical carcinoma has traditionally been treated with low-dose-rate brachytherapy. High-dose-rate brachytherapy was developed to overcome potential disadvantages of LDR brachytherapy (radiation exposure to medical staff, prolonged treatment time, mandatory hospitalization and applicator movement). Both, LDR and HDR brachytherapy have been combined with the external beam therapy (E...

Environmental biomonitoring has demonstrated that organisms such as crustaceans, fish and mushrooms are useful to evaluate and monitor both ecosystem contamination and quality. Particularly, some mushroom species have a high capacity to retain radionuclides and some toxic elements from the soil and the air. The potential of mushrooms to accumulate radionuclides in their fruit-bodies has been we...

Reliable sedimentation histories are difficult to obtain in sandy or anthropogenically impacted coastal systems with disturbed sediment profiles and low initial radionuclide activities. This study addresses the problem using radionuclides in sediment cores from Naples Bay estuary, Florida, USA. Non-steady sedimentation and nuclide scavenging processes are shown to limit application of tradition...

The fundamental goal of the current study is to determine mean activity concentrations natural and artificial radionuclides 226 Ra, 232 Th, 40 K, 137 Cs using gamma spectrometry for three locations, in Egypt, Saudi Arabia, Iraq, which are significant vital countries Middle East. absorbed dose rate equals 22.35, 28.96, 43.34 nGy h -1 Iraq. results consistent with international reports. contribut...