Determination of D2O by photoneutron activation techniques.
The possibility of using an intense (24)Na gamma ray source for detection and determination of heavy water in samples has been investigated. The sample is irradiated, and the photoneutrons are detected by a set of six paraffin-shielded BF(3) counters surrounding it. It is concluded that the presence of heavy water can be determined and its quantity measured. The photon source and water samples were in the form of coaxial cylinders, so that measurements were carried out with the same close geometry for highest accuracy. This system shows a detection sensitivity of D(2)O to be less than 0.1mg. The equipment can also be used as a standard photoneutron source.
Moussavi-Zarandi
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Department of Nuclear Engineering & Physics, Amirkabir University of Technology, Tehran, Iran. moussavi.zarandi@gmail.com
D017666:Deuterium Oxide / Q000032:analysis*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009501:Neutron Activation Analysis / Q000295:instrumentation* / Q000379:methods*; D010777:Photochemistry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014867:Water / Q000737:chemistry*
D014867:Water; D017666:Deuterium Oxide