Authors:
P. Kalsi Bhabha Atomic Research Centre Radiochemistry Division Trombay 400 085 Bombay (India)

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R. Iyer Bhabha Atomic Research Centre Radiochemistry Division Trombay 400 085 Bombay (India)

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Abstract  

A transmission-corrected -ray counting method has been employed for the assay of uranium in crude Na2U2O7 cakes produced at the Uranium Conversion Facilities. A 3×3 NaI(TI) detector was used in conjunction with a 400-channel analyzer. The observed count rate of the 1 MeV -ray emitted by the238U in the sample was corrected for sample self-attenuation, measured with a65Zn (-energy 1115 keV) transmission source. A calibration factor determined by measuring a standard of known amount of radioactive material in the same form and geometry as the unknown sample was used to convert the transmission corrected count rate to the amount of uranium in the weighted sample. Another -spectrometric method is described for the assay of the U-content in the MgF2 slag produced during the magnesiothermic reduction of UF4 to U-metal ingots at the natural U-conversion plant.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)