Low energy 3He activation analyses for carbon and oxygen

Abstract : Radiations from 11C and 18p produced in the 3He activation of carbon and oxygen were used to detect the presence of these elements. Using targets of known composition, the cross-sections for the 3He + C → 11C and 3He + O → 18F reactions were measured as a function of energy up to 5.5 MeV. The results show that the cross sections for both reactions are of the order of tens of mb at a 3He laboratory energy as low as 2 MeV. This corresponds to a sensitivity of the order of ppm for the carbon and oxygen analyses. The 3He + N → 13N reaction, which can serve as the detecting reaction for nitrogen, was found to have much lower cross-sections (1).
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Revue de Physique Appliquee, 1969, 4 (2), pp.227-227. <10.1051/rphysap:0196900402022700>


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A. Pape, A. Chevallier, J.C. Sens, R. Armbruster. Low energy 3He activation analyses for carbon and oxygen. Revue de Physique Appliquee, 1969, 4 (2), pp.227-227. <10.1051/rphysap:0196900402022700>. <jpa-00243232>

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