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Дата изменения: Thu Dec 27 12:35:18 2012
Дата индексирования: Sun Feb 3 02:05:53 2013
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Formation of collimated ion beams with sub-relativistic femtosecond laser pulse using 2D microstructured foils Abstract.
High-temperature plasma formed as a result of interaction of high power femtosecond laser impulse with matter. This plasma is the source of x-ray radiation, high energy ions and electrons. The characteristics of the resulting ions depend on the parameters of the laser system and on the parameters of target used. The target mount and the target from aluminum foil was made. Emanation of the target from focus while moving in perpendicular to laser beam direction was less then 40 . The 10 holes were made in this target, using the second harmonics of Nd:YAG laser (532 nm). Furthermore, time-of-flight currents were measured. In this was used. The targe 10 / identified, necessity of this devise 0, 05 . ionic spectrometer with magnetic separator was created and ionic experiments, Ti:Sa laser (800 nm) with intensity = 0,2 В 6 t was a thick iron plate. As a result, oxygen and iron ions were was shown and magnetic induction was estimated as = 0,54 ±

Another result of this work was confirmation of the fact, that maximum ionic energy weekly depends on impulse duration in the interval 40 В 1500 . But if impulse duration is minimum (40 fs), maximum ionic energy is lesser, than for longer pulses from the interval, written above.