Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications

0471462 - FZÚ 2017 RIV US eng J - Článek v odborném periodiku
Klir, D. - Shishlov, A. V. - Kokshenev, V. A. - Kubes, P. - Labetsky, A. Yu. - Rezac, K. - Cherdizov, R. K. - Cikhardt, J. - Cikhardtová, B. - Dudkin, G. N. - Fursov, F. I. - Garapatsky, A. A. - Kovalchuk, B. M. - Krása, Josef - Kravarik, J. - Kurmaev, N. E. - Orčíková, Hana - Padalko, V. N. - Ratakhin, N. A. - Sila, O. - Turek, Karel - Varlachev, V. A. - Velyhan, Andriy - Wagner, Richard
Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications.
Physics of Plasmas. Roč. 23, č. 3 (2016), 1-10, č. článku 032702. ISSN 1070-664X. E-ISSN 1089-7674
Grant CEP: GA ČR GA16-07036S; GA MŠMT(CZ) LD14089; GA MŠMT(CZ) LG13029
Grant ostatní: GA MŠk(CZ) LH13283
Institucionální podpora: RVO:68378271 ; RVO:61389005
Klíčová slova: neutrons * Z-pinch * ion sources * isotopes * protons
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.115, rok: 2016

A novel configuration of a deuterium z-pinch has been used to generate a nanosecond pulse of fast ions and neutrons. At a 3 MA current, the peak neutron yield of (3.6 +/- 0.5) x 10(12) was emitted within 20 ns implying the production rate of 10 20 neutrons/s. High neutron yields resulted from the magnetization of MeV deuterons inside plasmas. Whereas deuterons were trapped in the radial direction, a lot of fast ions escaped the z-pinch along the z-axis. A large number of >25MeV ions were emitted into a 250 mrad cone. The cut-off energy of broad energy spectra of hydrogen ions approached 40 MeV. The total number of >1 MeV and >25 MeV deuterons were 10(16) and 10(13), respectively. Utilizing these ions offers a real possibility of various applications, including the increase of neutron yields or the production of short-lived isotopes in samples placed in ion paths. On the basis of our experiments with various samples, we concluded that a single shot would have been sufficient to obtain GBq positron activity of 13 N isotopes via the C-12(d, n)(13) N reaction. Furthermore, the first z-pinch generated neutron radiograph produced by approximate to 20 ns pulses is presented in this paper.
Trvalý link: http://hdl.handle.net/11104/0268846