Temporal structure of X-ray radiation pulses of picosecond laser plasma

Journal Article · Mon Sep 30 00:00:00 EDT 2013 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2013V043N09ABEH015168· OSTI ID:22303374

Belyaev, V S; Kovkov, D V; Matafonov, A P; Karabadzhak, G F; Raikunov, G G ^[1]; Faenov, A Ya; Pikuz, S A; Skobelev, I Yu; Pikuz, T A; Fokin, D A; Fortov, V E ^[2]; Ignat'ev, G N; Kapitanov, S V; Krapiva, P S; Korotkov, K E ^[3]

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1. Central Research Institute of Machine Building, Korolev, Moscow region (Russian Federation)
2. Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow (Russian Federation)
3. All-Russian Institute of Automatics, Moscow (Russian Federation)

The shape of the X-ray pulse generated by picosecond laser plasma is experimentally studied. The unusual phenomenon was experimentally observed for the first time for targets made of moderate-heavy chemical elements, namely, the pulse of hard X-ray radiation generated by laser plasma at the laser radiation flux of ∼10{sup 18} W cm{sup -2} had a longer duration than the pulse of softer X-ray radiation. A simple kinetic model is suggested for explaining this fact. We have suggested a method for controlling the temporal shape of X-ray pulse emitted by laser plasma by varying the contrast of laser pulse. (interaction of laser radiation with matter)

• OSTI ID: 22303374
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 43, Issue 9; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
EMISSION
HARD X RADIATION
LASER RADIATION
LASERS
PLASMA
PULSES
SHAPE
SOFT X RADIATION