Neutron Spectrum Measured by Activation Diagnostics in Deuterium Gas-Puff Experiments on the 3 MA GIT-12 Z-Pinch

0484313 - ÚJF 2018 RIV US eng J - Článek v odborném periodiku
Cikhardt, J. - Klír, D. - Řezáč, K. - Shishlov, A. V. - Cherdizov, R. K. - Cikhardtová, B. - Dudkin, G. N. - Fursov, F. I. - Kokshenev, V. A. - Kravařík, J. - Kubeš, P. - Kurmaev, N. E. - Labetsky, A. Yu. - Padalko, V. N. - Ratakhin, N. A. - Šíla, O. - Turek, Karel - Varlachev, V. A.
Neutron Spectrum Measured by Activation Diagnostics in Deuterium Gas-Puff Experiments on the 3 MA GIT-12 Z-Pinch.
IEEE Transactions on Plasma Science. Roč. 45, č. 12 (2017), s. 3209-3217. ISSN 0093-3813. E-ISSN 1939-9375
Institucionální podpora: RVO:61389005
Klíčová slova: neutron detectors * neutron spectroscopy * plasma pinch
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.253, rok: 2017

A set of neutron diagnostics including scintillation time-of-flight detectors, bubble detectors, and several kinds of threshold nuclear activation samples is used to obtain information about the yield and spectrum of the neutrons produced by a deuterium gas-puff z-pinch. The experiments are performed at a current of about 3 MA on the GIT-12 generator at the Institute of High Current Electronics of the Siberian Branch of Russian Academy of Sciences in Tomsk. The average neutron yield in the experiments in 2016 was 2.3 x 10(12) neutrons per single shot. Using the data obtained with the help of neutron activation diagnostics, the time-of-flight detectors have been absolutely calibrated and the broad energy spectrum of the produced neutrons was evaluated. By the calculations presented in this paper, due to the multi-MeV energies of deuterons generated in the pinch, up to 15% of the total neutron yield could be produced by nuclear reactions of deuterons with a stainless steel vacuum chamber and aluminum components of the diagnostic apparatus inside the chamber.
Trvalý link: http://hdl.handle.net/11104/0279446