Original title: Unfolding of energies of fusion products measured by the activation probe at JET
Authors: Ficker, Ondřej ; Mlynář, Jan ; Bonheure, G. ; Murari, A. ; Popovichev, S.
Document type: Papers
Conference/Event: Conference of Czech and Slovak Physicists/18./, Olomouc (CZ), 20140916
Year: 2015
Language: eng
Abstract: Providing a detection method for diagnostic of charged fusion products in tokamaks presents a major challenge, while its absolute calibration with a sufficient accuracy and its capability to withstand harsh fusion reactor environment will be required. A novel type of detector that meets most of these requirements, based on an activation probe, was tested in JET and other European facilities. This probe proved to be extremely robust due to its simple construction. It is equipped with samples of well defined isotopic abundance. The amounts of activated nuclei due to the reactions in these materials could be measured via ultra-low-level gamma spectroscopy. The feasibility of the proton spectrum reconstruction from measured activities is examined in this contribution with the help of the algorithm based on the Tikhonov regularisation constrained by minimum Fisher information. The reliability of the method was previously illustrated using synthetic proton data.
Keywords: fusion products; nuclear activation; protons; spectra
Project no.: GAP205/10/2055 (CEP)
Funding provider: GA ČR
Host item entry: Conference Proceedings: 18th Conference of Czech and Slovak Physicists, ISBN 978-80-244-4726-1

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://jcmf.upol.cz/kcsf18/proc_kcsf18.pdf
Original record: http://hdl.handle.net/11104/0266324

Permalink: http://www.nusl.cz/ntk/nusl-262495


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