X-ray lasing upon two-pulse irradiation of targets on the picosecond SOKOL-P facility

The results of experimental studies of the X-ray lasing on the 3p-3s transitions of neon-like titanium ions are presented. The laser radiation at 1.054 {mu}m was focused to a {approx}30-{mu}m wide line of length from 2 to 8 mm. Plane polished titanium plates were successively irradiated by two pulse...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2006-06, Vol.36 (6), p.511-514
Main Authors: Andriyash, Aleksandr V, Vikhlyaev, D A, Gavrilov, D S, Dmitrov, D A, Zapysov, A L, Kakshin, A G, Loboda, E A, Lykov, V A, Magda, E P, Politov, V Yu, Potapov, A V, Pronin, V A, Rykovanov, G N, Sukhanov, V N, Tishchenko, A S, Ugodenko, A A, Chefonov, O V
Format: Article
Language:English
Subjects:
BEAMS
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUIDS
GASES
IONIZING RADIATIONS
IONS
IRRADIATION
LASER RADIATION
LASER TARGETS
LASERS
MATERIALS SCIENCE
METALS
NEON
NONMETALS
PHOTON BEAMS
PLATES
PULSED IRRADIATION
PULSES
PUMPING
RADIATIONS
RARE GASES
SIGNALS
TARGETS
TITANIUM
TITANIUM IONS
TRANSITION ELEMENTS
X RADIATION
X-RAY LASERS
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Summary:The results of experimental studies of the X-ray lasing on the 3p-3s transitions of neon-like titanium ions are presented. The laser radiation at 1.054 {mu}m was focused to a {approx}30-{mu}m wide line of length from 2 to 8 mm. Plane polished titanium plates were successively irradiated by two pulses: a 400-ps prepulse and a 4-ps main pump pulse delayed by 1.5 ns relative to the prepulse. The total laser energy was 8-10 J. The nanosecond-to-picosecond pulse energy ratio was maintained constant and was equal to 1:3. For a short target length (from 2 to 4 mm), the 326-A line intensity was experimentally observed to grow exponentially with length. The small-signal gain for the X-ray laser radiation is estimated at approximately 30 cm{sup -1}. The X-ray laser beam divergence was equal to about 9 mrad. (lasers)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2006v036n06ABEH013167