Title: Charged Fusion Product Loss Measurements Using Nuclear Activation
Authors: BONHEURE GeorgesHULT MikaelGONZALEZ DE ORDUNA RaquelARNOLD D.DOMBROWSKI HaraldLAUBENSTEIN M.WIESLANDER E.VERMAERCKE P.MURARI A.POPOVICHEV S.MLYNAR J.
Citation: REVIEW OF SCIENTIFIC INSTRUMENTS vol. 81 no. 10 p. 10D331 (1-3)
Publisher: AMER INST PHYSICS
Publication Year: 2010
JRC N°: JRC58768
ISSN: 0034-6748
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC58768
DOI: 10.1063/1.3502321
Type: Contributions to Conferences
Abstract: In ITER, alpha particle loss measurements will be required in order to understand the alpha particle physics. Techniques capable of operating in a fusion reactor environment need further development. Recent experimental studies on JET demonstrated the potential of nuclear activation to measure the flux of escaping MeV ions. New results from MeV ion induced activation of metallic, ceramic, and crystal samples placed near the plasma edge are reported. Activation products were measured as function of orientation with respect to the magnetic field as well as function of the distance to the plasma. Sample activity was measured using ultralow-level gamma-ray spectrometry. Distribution of 14.68 MeV fusion proton induced activation products is strongly anisotropic in agreement with simulations and falls off sharply with increasing distance to the plasma. Prospects for using the technique in ITER are discussed.
JRC Institute:Institute for Reference Materials and Measurements

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