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Low energy 3He activation analyses for carbon and oxygen
Pape A., Chevallier A., Sens J.C., Armbruster R.
Revue de Physique Appliquee 4, 2 (1969) 227-227 - http://hal.archives-ouvertes.fr/jpa-00243232
Physique/Articles anciens
Physique/Physique Nucléaire Expérimentale
Low energy 3He activation analyses for carbon and oxygen
A. Pape1, A. Chevallier1, J.C. Sens1, R. Armbruster1
1 :  IReS - Institut de Recherches Subatomiques
CNRS : UMR7500 – IN2P3 – Université Louis Pasteur - Strasbourg I – Cancéropôle du Grand Est
23 rue du Loess - BP 28 - 67037 Strasbourg Cedex 2
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).

Revue de Physique Appliquee
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Articles dans des revues avec comité de lecture

Collisional activation – Carbon isotopes – Fluorine isotopes – Carbon 11 – Fluorine 18 – Helium 3 – Activation analysis – Oxygen – Cross sections

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