Abstract
Methods and results of studies of the radiation spectra of high-current Z-pinches with different elemental compositions are presented. To examine a wide spectral range (E hν = 30–3000 eV), two diagnostics tools were used—a transmission grating and a reflecting mica crystal. The radiation characteristics of the pinch are determined by its elemental composition. For currents of 2–3 MA and low-Z elements (aluminum), the hard end of the radiation spectrum is represented by spectral lines with clearly pronounced K lines, while for high-Z elements (tungsten), the spectrum lies in the softer photon energy range and is quasi-continuous. Two methods of spectrum processing were used to determine the plasma parameters. The parameters of aluminum plasma were traditionally determined from the intensity ratios of the K lines taking into account the plasma transparency for these lines. The spectra of tungsten plasma were compared with the results of computer simulations of pinch compression with allowance for both magnetohydrodynamic and plasma radiation processes. The applicability of these methods of spectral analysis is discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Z. A. Al’bikov, E. P. Velikhov, A. I. Veretennikov, V. A. Glukhikh, E. V. Grabovskii, V. I. Zaitsev, S. S. Kurochkin, G. M. Oleinik, V. D. Pis’mennyi, L. I. Rudakov, V. P. Smirnov, and I. R. Yampol’skii, At. Energ. 68, 26 (1990).
G. S. Volkov, V. I. Zaitsev, E. V. Grabovski, M. V. Fedulov, V. V. Aleksandrov, and N. I. Lakhtyushko, Plasma Phys. Rep. 36, 191 (2010).
G. S. Volkov, V. V. Zazhivikhin, V. I. Zaitsev, and V. O. Mishenskii, Instrum. Exp. Tech. 39, 427 (1996).
E. A. Bolkhovitinov, G. S. Volkov, I. Yu. Vichev, E. V. Grabovski, A. N. Gritsuk, V. I. Zaitsev, V. G. Novikov, G. M. Oleinik, A. A. Rupasov, E. V. Svetlov, A. S. Shikanov, and M. V. Fedulov, Plasma Phys. Rep. 38, 824 (2012).
I. Yu. Vichev, V. G. Novikov, and A. D. Solomyannaya, Mat. Model. 20(7), 93 (2008).
Plasma Diagnostic Techniques, Ed. by R. H. Huddlestone and S. L. Leonard (Academic, New York, 1965).
V. I. Derzhiev, A. G. Zhidkov, and S. I. Yakovlenko, Ion Radiation in Dense Nonequlibrium Plasma (Energoatomizdat, Moscow, 1986) [in Russian].
S. S. Anan’ev, S. A. Dan’ko, and Yu. G. Kalinin, Plasma Phys. Rep. 40, 89 (2014).
L. A. Vainshtein, I. I. Sobel’man, and E. A. Yukov, Atomic Excitation and Spectral Line Broadening (Nauka, Moscow, 1979) [in Russian].
Ya. B. Zel’dovich and Yu. P. Raizer, Elements of Gas Dynamics and the Classical Theory of Shock Waves (Nauka, Moscow, 1966; Academic, New York, 1968).
L. A. Vainshtein, U. I. Safronova, and A. M. Urnov, Tr. FIAN 119, 13 (1980).
H. R. Griem, Spectral Line Broadening by Plasmas (Academic, New York, 1974).
L. P. Presnyakov, Phys. Usp. 19, 387 (1976).
A. F. Nikiforov, V. G. Novikov, and V. B. Uvarov, Quantum-Statistical Models of High-Temperature Plasma and Methods for Calculating Rosseland Mean Free Paths and Equations of State (Fizmatlit, Moscow, 2000) [in Russian].
M. F. Gu, Canadian J. Phys. 86, 675 (2008).
V. A. Gasilov, A. S. Boldarev, S. V. D’yachenko, O. G. Ol’khovskaya, E. L. Kartasheva, S. N. Boldyrev, G. A. Bagdasarov, I. V. Gasilova, V. A. Boyarov, and M. S. Shmyrov, Mat. Model. 24(1), 55 (2012).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.S. Boldarev, E.A. Bolkhovitinov, I.Yu. Vichev, G.S. Volkov, V.A. Gasilov, E.V. Grabovskii, A.N. Gritsuk, S.A. Dan’ko, V.I. Zaitsev, V.G. Novikov, G.M. Oleinik, O.G. Ol’khovskaya, A.A. Rupasov, M.V. Fedulov, A.S. Shikanov, 2015, published in Fizika Plazmy, 2015, Vol. 41, No. 2, pp. 195–199.
Rights and permissions
About this article
Cite this article
Boldarev, A.S., Bolkhovitinov, E.A., Vichev, I.Y. et al. Methods and results of studies of the radiation spectra of megampere Z-pinches at the angara-5-1 facility. Plasma Phys. Rep. 41, 178–181 (2015). https://doi.org/10.1134/S1063780X14120010
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063780X14120010