0468472 - ÚFP 2017 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Ficker, Ondřej - Mlynář, Jan - Bonheure, G. - Murari, A. - Popovichev, S.
Unfolding of energies of fusion products measured by the activation probe at JET.
Conference Proceedings: 18th Conference of Czech and Slovak Physicists. Olomouc: Palacký University, Olomouc, 2015 - (Machala, L.; Richterek, L.), s. 29-30. ISBN 978-80-244-4726-1.
[Conference of Czech and Slovak Physicists/18./. Olomouc (CZ), 16.09.2014-19.09.2014]
Grant CEP: GA ČR GAP205/10/2055
Institucionální podpora: RVO:61389021
Klíčová slova: fusion products * nuclear activation * protons * spectra
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Web výsledku:
http://jcmf.upol.cz/kcsf18/proc_kcsf18.pdf

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.
Trvalý link: http://hdl.handle.net/11104/0266324