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Correlation analysis of intense ion beam energy in a self magnetically insulated diode

Published online by Cambridge University Press:  01 April 2014

A.I. Pushkarev ,
Yu.I. Isakova  and
I.P. Khaylov
A.I. Pushkarev*
Affiliation:
Tomsk Polytechnic University, Tomsk, Russia
Yu.I. Isakova
Affiliation:
Tomsk Polytechnic University, Tomsk, Russia
I.P. Khaylov
Affiliation:
Tomsk Polytechnic University, Tomsk, Russia
*
Address correspondence and reprint requests to: A. I. Pushkarev, Tomsk Polytechnic University, Lenin Ave. 30, 634050 Tomsk, Russia. E-mail: aipush@mail.ru
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Abstract

This paper presents the results of a statistical and correlation analysis of the energy and energy density of an ion beam formed by a self-magnetically insulated diode with an explosive emission cathode. The experiments were carried out with the TEMP-4M accelerator operating in double-pulse mode: plasma formation occurs during the first pulse (negative polarity, 300–500 ns, 100–150 kV), and ion extraction and acceleration during the second pulse (positive polarity, 120 ns, 250–300 kV). Various arrangements of diodes have been investigated: strip focusing and planar diodes, a conical focusing diode and a spiral diode. The total ion beam energy was measured using both a calorimeter and an infrared camera and the beam energy density was measured by the thermal imaging and acoustic diagnostics. The correlation analysis showed that ion current density is only weakly dependent on the accelerating voltage and other output parameters of the accelerator, with the coefficient of determination <0.3. At the same time, in this paper, we have identified that the total energy of the beam and the energy density is strongly dependant on the accelerator output parameters, since the coefficient of determination >0.9. The mechanism governing stabilization of the beam energy density from shot to shot was discovered and attributed to formation of the neutral component in ion beam as being due to charge exchange between accelerated ions and neutral molecules from a neutral layer near the anode surface. Implementation using a self-magnetically insulated diode with an explosive-emission cathode, having an operational lifetime of up to 106 shots, has promising prospects for various technological applications.

Keywords

AcceleratorCorrelation analysisIntense ion beamsSelf-magnetically insulated diode
Type
Research Article
Information
Laser and Particle Beams , Volume 32 , Issue 2 , June 2014 , pp. 311 - 319
Copyright
Copyright © Cambridge University Press 2014 

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References

REFERENCES

Isakova, Yu.I. (2011). Diagnostic equipment for the TEMP-4M generator of high-current pulsed ion beams. J. Korean Phys. Soc. 59, 3531–3535.Google Scholar
Isakova, Yu.I., Pushkarev, A.I. & Khailov, I.P. (2012). Formation of charge-exchange neutral atoms in a diode with passive anode. Russian Phys. J. 55, 121–124.Google Scholar
Isakova, Y.I., Pushkarev, A.I. & Khaylov, I.P. (2013 a). Statistical analysis of the ion beam production in a self magneticaly insulated diode. Phys. Plasmas 20, 093105.Google Scholar
Isakova, Yu.I. & Pushkarev, A.I. (2013b). Thermal imaging diagnostics of powerful ion beams. Instr. Exper. Techn. 56, 185–192.CrossRefGoogle Scholar
Ito, H., Fujikawa, K., Miyake, H. & Masugata, K. (2009). Characteristic observation of intense pulsed aluminum ion beam in magnetically insulated ion diode with vacuum arc ion source. IEEE Trans. Plasma Sci. 37,1879–1884.Google Scholar
Langmuir, I. (1913). The effect of space charge and residual gases on thermionic currents in high vacuum. Phys. Rev. 2, 450–486.Google Scholar
Lyamshev, L.M. (1997). Radiation Acoustics. Boca Raton: CRC Press, 307.Google Scholar
Pushkarev, A.I., Isakova, J.I., Saltimakov, M.S. & Sazonov, R.V. (2010 a). Research on the plasma dynamics in a magnetically self-insulated ion diode with explosive emission potential electrode. Nat. Sci. 2, 419–426Google Scholar
Pushkarev, A., Isakova, Yu. & Vahrushev, D. (2010 b). The effect of ion current density amplification in a diode with passive anode in magnetic self-isolation mode. Phys. Plasmas 17, 123112.CrossRefGoogle Scholar
Pushkarev, A., Isakova, Yu. & Guselnikov, V. (2011). Limitation of the electron emission in an ion diode with self-magnetic insulation. Phys. Plasmas 18, 083109.Google Scholar
Pushkarev, A.I. & Isakova, Yu.I. (2012 a). A spiral self-magnetically insulated ion diode. Laser Part. Beams. 30, 427–433.Google Scholar
Pushkarev, A.I., Isakova, Yu.I. & Khailov, I.P. (2012 b). Shot-to-shot reproducibility of a self-magnetically insulated ion diode. Rev. Sci. Instr. 83, 073309.Google Scholar
Pushkarev, A.I. & Isakova, Yu.I. (2013 a). A gigawatt power pulsed ion beam generator for industrial application. Surf. Coatings Techn. 228, S382–S384Google Scholar
Pushkarev, A.I., Isakova, Yu.I. & Khailov, I.P. (2013 b). The influence of a shield on intense ion beam transportation. Laser Part Beams 31, 493–501.Google Scholar
Pushkarev, A.I., Isakova, Yu.I., Xiao, Yu. & Khailov, I.P. (2013 c). Characterization of intense ion beam energy density and beam induced pressure on the target with acoustic diagnostics. Rev. Sci. Instr. 84, 083304.CrossRefGoogle ScholarPubMed
Pushkarev, A.I. & Isakova, Y.I. (2013 d). Closed electron drift in a self-magnetically insulated ion diode. Phys. Plasmas 20, 5053101.Google Scholar
Zhu, X.P., Lei, M.K., Dong, Z.H. & Ma, T.C. (2003). Characterization of a high-intensity unipolar-mode pulsed ion source with improved magnetically insulated diode. Rev. Sci. Instr. 74, 47–52.Google Scholar
Zhu, X.P., Dong, Z.H., Han, X.G., Xin, J.P. & Lei, M.K. (2007). Lifetime of anode polymer in magnetically insulated ion diodes for high-intensity pulsed ion beam generation. Rev. Sci. Instrum. 78, 023301.Google Scholar
Xin, J.P., Zhu, X.P. & Lei, M.K. (2011). On time-of-flight ion energy deposition into a metal target by high-intensity pulsed ion beam generated in bipolar-pulse mode. Surf. Coatings Techn. 206, 879–883.Google Scholar