Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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S. O. Lebed¹, O. G. Kukharenko¹, O. O. Veselov², J. Lekki², Z. Stachura<sup>2

1</sup>Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
²Institute of Nuclear Physics, Kraków, Poland

Abstract: On the basis of numerical simulation, using the SRІM program and author's programs (INITBEAM, DEGRADBEAM), close optimal structure and geometrical parameters of an exit device of the nuclear microprobe (NMP) with the external beam of ions are determined. Thin films-windows (Sі₃N₄, Mylar, Kapton or Al) of thickness of 0.2 - 10 microns are used in the exit device. The obtained results allow carrying out the optimized choice of geometrical parameters of the device and films-windows to pass to atmosphere (normal conditions) high energy (2.5 МeV) proton microbeam with the purpose to achieve the minimal degradation of the main ion-optical parameters of the probe on the sample surface. Calculations were used to develop design of the exit device, specialized for a precision irradiation of microscopic samples (living cells) by single ions, of Kraków NMP with the external beam of ions. Some features of this device are discussed in article.

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