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Measurements Of Activity Concentration Of Natural Radionuclides In The Different Coffee Samples Collected From Shashamene Market, Ethiopia

Author: 
Rukiya Aliyi and Chaube, A.K
Subject Area: 
Physical Sciences and Engineering
Abstract: 

Four raw coffee samples purchased from Shashamene markets in Ethiopia were analyzed by High Pure Germanium (HPGe) gamma spectrometry to determine the activity concentrations of the natural radionuclides 40K. They acceptable value 412 Bq/kg. The average values of radium equivalent for different coffee samples in area under investigated was 47.44Bq/kg which is lower than the recommended maximum value 370 Bq/kg. The average v internal (Hin) hazard index due to the emitted 0.0325, 0.181, 0.107 mSv /year , 0.128 and 0.128 these worldwide values of 0.08, 0.42, and 0.50 mSvyear from 0.36 to 0.475 Bq.kg level index is lower hazard. Hence it can be concluded that the radionuclide concentration of measured coffee samples were poses no radiological hazard to the public. 238U, 226Ra, 232Th and 40K. All samples were found to contain a high mean content of had 591.185 Bq/Kg average values of 40K concentrations that were higher than the alues of absorbed dose rate (Dr), Dout, Din  -rays of the coffee respectively was of 26.49nGy h values were all lower than the assigned -1, respectively. Radioactivity level index ranged -1with average value is 0.4 Bq. kg-1. The average value of Radioactivity than one the recommended safe limit ≤1. Therefore, the coffee had no radiation , and Dtot , external (Hex) and -1,

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