Application of a Bonner sphere spectrometer for determination of the energy spectra of neutrons generated by ≈1 MJ plasma focus

0352718 - FZÚ 2011 RIV US eng J - Journal Article
Králík, M. - Krása, Josef - Velyhan, Andriy - Scholz, M. - Ivanova-Stanik, I.M. - Bienkowska, B. - Miklaszewski, R. - Schmidt, H. - Řezáč, K. - Klír, D. - Kravárik, J. - Kubeš, P.
Application of a Bonner sphere spectrometer for determination of the energy spectra of neutrons generated by ≈1 MJ plasma focus.
Review of Scientific Instruments. Roč. 81, č. 11 (2010), 113503/1-113503/5. ISSN 0034-6748. E-ISSN 1089-7623
R&D Projects: GA MŠMT LA08024
Grant - others:FP-6 EU(XE) RITA-CT2006-26095
Institutional research plan: CEZ:AV0Z10100523
Keywords : plasma focus * fusion DD neutrons * Bonner sphere spectrometer * energy spectra of scattered neutrons * unfolded and calculated spectra
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 1.598, year: 2010

The spectra of neutrons outside the plasma focus device PF-1000 with an upper energy limit of _1 MJ was measured using a Bonner spheres spectrometer in which the active detector of thermal neutrons was replaced by nine thermoluminescent chips. As an a priori spectrum for the unfolding procedure, the spectrum calculated by means of the Monte Carlo method with a simplified model of the discharge chamber was selected. Differences between unfolded and calculated spectra are discussed with respect to properties of the discharge vessel and the laboratory layout.
Permanent Link: http://hdl.handle.net/11104/0192166