Reply to the letter written by Mayeen Uddin Khandaker on: “Distribution and assessment of radionuclides in sediments, soil and water from the lower basin of river Pra in the Central and Western Regions of Ghana” (DOI 10.1007/s10967-014-3637-5)
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KeywordsRadionuclide Count Rate Western Region Counting Time Statistical Convergence
He thought the minimum detectable activity (MDA) value for K is too low, the counting time was too short based on his experience and why distilled water was used. First of all the distilled water was used to limit the level of backscatter radiation within the detector system during the background count. Also, we want to state that a low background spectrometry system was used for the counting. In other to optimize the result of the background count and the real samples, the same counting time was used. We agree that the longer the counting time the greater the peak area, however, based on the prevailing laboratory condition which could not enable us to consider a longer counting time 36,000 was used which could also give an appreciable count rate.
We also want to state that the equation used in calculating the activity is correct.
His third point has been addressed in point 2.
The counting has been addressed in point 1.
Based on our explanation, we believed Dr. M. U. Khandaker will appreciate the results of this work and withdraw his call for an erratum.