Share This Article:

X-Ray and VUV Spectra from the Laser Plasma Produced with “Kanal-2” Facility

Abstract Full-Text HTML Download Download as PDF (Size:976KB) PP. 92-97
DOI: 10.4236/jmp.2014.52015    2,820 Downloads   4,060 Views   Citations

ABSTRACT

The paper presents experimental results obtained on “Kanal-2” facility. Laser radiation focusing on the surface of plane magnesium targets created the high temperature plasma, which emitted X-ray and vacuum ultraviolet (VUV) radiation. This radiation spectrum was investigated with two spectrographs: the mica crystal spectrograph (working range 8.2 ? - 9.6 ?) and the grazing incidence VUV spectrograph (working rage 30 ? - 130 ?). A set of beryllium stepwise attenuators appended the diagnostic complex and allowed us to get an approximated picture of a continuous spectrum within the range of 2.2 ? - 6.2 ?. The estimation of the plasma electron temperature Te from the ratio between the intensity of the dielectronic satellites and the resonance line gives Te ~ 180 eV. The ratio between the intensity of the resonance and intercombination lines gives the electron density of the emitting zone ne ~ 2 × 1019 cm-3. Some lines observed within the spectral range of 8.5 ? - 9.1 ? belong to none of the transitions of Mg ions. Perhaps the observed spectrum is determined by the transitions in so-called hollow ions of Mg, i.e. in the ions with unfilled inner shells. The spectra obtained with the grazing incidence spectrograph and with the minimum-directioned discrepancy iteration method of spectrum reconstruction from the attenuation curve in the beryllium stepwise attenuators are also presented.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

A. Kologrivov, M. Osipov, V. Puzyrev, A. Starodub and O. Yakushev, "X-Ray and VUV Spectra from the Laser Plasma Produced with “Kanal-2” Facility," Journal of Modern Physics, Vol. 5 No. 2, 2014, pp. 92-97. doi: 10.4236/jmp.2014.52015.

References

[1] D. T. Attwood, L. W. Coleman and M. J. Boyle, “Spatially and Temporally Resolved X-Ray Emission from Imploding Laser Fusion Targets,” Report UCRL-78434, 1976.
[2] M. N. Key and R. J. Hutcheson, “Spectroscopy of Laser Produced Plasmas,” Advances in Atomic and Molecular Physics, Vol. 16, 1980.
[3] N. G. Basov, Yu. A. Bykovskii, A. V. Vinogradov, A. A. Galichii, M. P. Kalashnikov, V. L. Kantsyrev, Yu. P. Kozyrev, M. Yu. Mazur, Yu. A. Mikhailov, V. P. Puzyrev, A. V. Rode, G. V. Sklizkov and I. Ya. Frondzei, Quantum Electronics, Vol. 12, 1982, p. 977.
http://dx.doi.org/10.1070/QE1982v012n08ABEH005741
[4] M. C. Richardson, “X-Rays from Laser plasmas,” Proceedings of SPIE, Vol. 831, 1988, pp. 150-153.
[5] J. Abdallah, I. Yu. Skobelev, A. Ya. Faenov, A. I. Magunov, T. A. Pikuz, F. Flora, S. Bollanti, P. DiLazzaro, T. Letardi, E. Burattini, A. Grilli, A. Reale, L. Palladino, G. Tomassetti, A. Scafati and L. Reale, Quantum Electronics, Vol. 30, 2000, p. 694.
http://dx.doi.org/10.1070/QE2000v030n08ABEH001793
[6] S. I. Fedotov, L. P. Feoktistov, M. V. Osipov and A. N. Starodub, Journal of Russian Laser Research, Vol. 25, 2004, p. 79.
http://dx.doi.org/10.1023/B:JORR.0000012486.89881.d8
[7] V. A. Burakov, B. L. Vasin, A. A. Kologrivov, M. V. Osipov, V. N. Puzyrev, A. N. Starodub, A. A. Fronya, M. L. Chernodub and O. F. Yakushev, “X-Ray Diagnostic Complex at the ‘KANAL-2’ Experimental Setup,” P N Lebedev Physical Institute RAS, Preprint No 3, Moscow, 2012. (in Russian)
[8] I. Yu. Skobelev, A. Ya. Faenov, B. A. Bryunetkin, V. M. Dyakin, T. A. Pikuz, S. A. Pikuz, T. A. Shelkovenko, V. M. Romanova and A. R. Mingaleev, Journal of Experimental and Theoretical Physics, Vol. 81, 1995, p. 692.
[9] А. А. Коlogrivov, G. V. Sklizkov and A. S. Shikanov, “Reconstruction of a CW X-Ray Laser Plasma Spectrum from the Attenuation Curves,” P N Lebedev Physical Institute RAS, Preprint No 142, Moscow, 1981. (in Russian)
[10] E. L. Kosarev, Computer Physics Communications, Vol. 20, 1980, p. 69.
http://dx.doi.org/10.1016/0010-4655(80)90110-1
[11] L. P. Presnyakov, Soviet Physics Uspekhi, Vol. 19, 1976, pp. 387-399.
http://dx.doi.org/10.1070/PU1976v019n05ABEH005259
[12] I. Yu. Skobelev, A. Ya. Faenov and T. A. Pikuz, “The Spectra of Multi-Charged Hollow Ions in the X-Ray Emission of Hyper-Dense Laser Plasma,” Proceedings of the VIIth Russian Conference on Up-to-Date Methods for Plasma Diagnostics and Their Application in Matter and Environment Control, Moscow, 2010, p. 131. (in Russian)
[13] R. L. Kelly, “Atomic and Ionic Spectrum Lines below 2000 Angstroms,” Report No ORNL-5922, 1982.
[14] А. А. Коlogrivov, A. M. Maksimchuk, Yu. A. Mikhailov, A. V. Rode, A. A. Rupasov, G. V. Sklizkov, S. I. Fedotov, V. V. Frolov and A. S. Shikanov, Plasma Physics, Vol. 13, 1987, p. 826. (in Russian)
[15] O. B. Anan’in, Yu. V. Afanasiev, Yu. A. Bykovsky and O. N. Krokhin, “Laser Plasma. Physics and Applications,” Мoscow, 2003. (in Russian)
[16] M. A. Blokhin and I. G. Shveitser, “X-Ray Handbook,” Мoscow, 1982. (in Russian)
[17] H. R. Griem, “Plasma Spectroscopy,” New York, 1964.
[18] R. W. P. McWhirter, “Spectral Intensities,” In: R. H. Huddlestone and S. L. Leonard, Eds., Plasma Diagnostic Techniques, Academic Press, New York, 1965.

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.