scholarly journals Seven radioactivity maps and profiles of 67 flight lines of a gamma-ray spectrometer survey of an area north of Great Slave lake and island of the east Arm of Great Slave lake, Northwest Territories

1972 ◽  
Author(s):  
K A Richardson ◽  
R L Grasty
2021 ◽  
Vol 314 ◽  
pp. 01004
Author(s):  
Samira El Aouidi ◽  
Ayoub Benmhammed ◽  
Azzouz Benkdad ◽  
Nezha Mejjad ◽  
Edit Toth-Bodrogi ◽  
...  

The present study examines the radionuclides (40K, 226Ra and 210Pb) concentrations in soil and plants collected from El Jadida agricultural area. The transfer factors of radionuclides from the soil to different components of the plants (stems, roots, leaves, and fruits) was also determined and assessed. The plants include various vegetable crops, including pumpkin, zucchini, beans, fennel, potato, sunflower, broccoli, onion, carrot, cabbage, tomato, and mallow from three different locations. A wide-range HPGe gamma-ray spectrometer is used for radionuclide activity measurement. The radionuclides activities of soil samples display a wide range of variability from one location to another. The concentrations of 226Ra vary between 18 ± 1 Bq.Kg-1 and 80 ± 4 Bq.Kg-1, the concentrations of 210Pb range from 49.7 ± 4.4 Bq.Kg-1 to 269 ± 16 Bq.Kg-1, and the 40K values fluctuate between 94,1 ± 6,5 and 286,1 ± 15,3 Bq.Kg-1. The study showed that the transfer factor for K-40 is more significant than Pb-210 and Ra-226, mainly related to the use of fertilizers rich in potassium in the agricultural areas, leading to its concentrations increase.


2016 ◽  
Vol 5 (03) ◽  
pp. 4892 ◽  
Author(s):  
Ratna Raju M.* ◽  
Madhusudhana Rao P. V. ◽  
Seshi Reddy T. ◽  
Raju M. K. ◽  
Brahmaji Rao J. S. ◽  
...  

A study was undertaken to evaluate the inorganic elements for humans in two Indian medicinal plants leaves, namely Sphaeranthus indicus, and Cassia fistula by Instrumental Neutron Activation Analysis (INAA). INAA experiment was performed by using 20 kW KAMINI Reactor at Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam. The emitted gamma rays were measured using gamma ray spectrometer. The concentrations of Al, Br, Ca, Fe, K, La, Mg, Mn, Na, Sc, V and Zn were determined in the selected medicinal plants. The medicinal leaves are using in treatment of various important ailments. The elemental content in selected medicinal leaves is various proportions depending on the soil composition, location of plant specimen and the climate in which the plant grows.


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