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155 results on '"Romanov, I. V."'

31. DViN—Stationary setup for identification of explosives

Author

Bystritsky, V. M., Gerasimov, V. V., Kadyshevsky, V. G., Kobzev, A. P., Nozdrin, A. A., Rogov, Yu. N., Rapatsky, V. L., Sadovsky, A. B., Salamatin, A. V., Sapozhnikov, M. G., Sissakian, A. N., Slepnev, I. V., Slepnev, V. M., Utkin, V. A., Zamyatin, N. I., Peredery, A. N., Likhachev, N. P., Romanov, I. V., Safonov, M. V., Sedin, A. N., and Scherbakov, A. G.

Published
2008
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46. Characteristics of moderate current vacuum discharge triggered by multipicosecond and nanosecond duration laser pulses.

Author

Moorti, A., Kumbhare, S. R., Naik, P. A., Gupta, P. D., Romanov, I. V., Korobkin, Yu. V., Rupasov, A. A., and Shikanov, A. S.

Subjects
PULSE (Heart beat), LASERS, VACUUM, TITANIUM, ULTRASHORT laser pulses, PLASMA devices
Abstract

A comparative study of the characteristics of moderate-current (∼10 kA), low-energy (<=20 J) vacuum discharge triggered by multipicosecond and nanosecond duration laser pulses is performed. Temporal profiles of the x-ray emission, discharge current, and anode voltage measured in vacuum discharge created between a planar titanium cathode and a conical point-tip anode are observed to be quite different for the two regimes of the laser pulse duration. While cathode plasma jet pinching is clearly observed in the discharge created by low-energy (∼5 mJ), 27 ps full width at half-maximum (FWHM) laser pulses, a feeble pinching occurred for 4 ns (FWHM) laser pulses only above a threshold energy of ∼250 mJ. In addition to the multiple K-shell x-ray pulses emitted from the titanium anode up to 100 ns, evidence of a much harder x-ray component (hν>100 keV) is also seen in the discharge triggered by picosecond laser pulses. [ABSTRACT FROM AUTHOR]

Published
2005
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