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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P. M. Vorona, V. F. Razbudey

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Calculational studies and analysis of the neutron fields of WWR-M research reactor of the Institute for Nuclear Research, National Academy of Sciences of Ukraine, as a basic nuclear facility for performing the fundamental and applied investigations and for experimental-industrial production of radioisotope products for various spheres of application are carried out. The calculations are carried out by the method of statistic tests (Monte Carlo) applying the computer program MCNP-4C. The data on the spectra and the neutron flux density values at the 10 MW reactor power for all technological facilities designed for the works with neutrons: 19 vertical experimental channels for irradiation of specimens and 10 horizontal channels for beams extraction from the reactor are obtained. The effect of the neutron traps (water cavities) mounted in the core on the characteristics of the extracted from the reactor beams is demonstrated. Recommendations associated with optimization of the reactor core are adduced for amplification of its capabilities as a neutron source in experimental researches.

Keywords: research nuclear reactor, calculation, Monte Carlo, neutron spectrum, neutron flux.

1. Вишневський И. Н., Слисенко В. И., Макаровский В. Н., Лысенко М. В. Исследовательский ядерный реактор как база фундаментальных и прикладных исследований в Украине. Исследовательские реакторы в ХХI веке. Материалы Междунар. науч.- техн. конф., Москва, 20 - 23 июня 2006 г. (Москва: Изд-во ГУП НИКИЭТ, 2006).

2. Briesmeister J. F. (Ed.). MCNP - A General Monte Carlo N-particle Transport Code. Version 4C. Los Alamos National Laboratory, NM (USA). Report № LA-13709-M (2000) 788 p.

3. RSIC DATA LIBRARY collection, DLC-185 (Prepared by D.T. Ingersoll et al.) Nucl. Data, ORN-6795 NUREG-6214.

4. Vorona P., Kalchenko O., Krivenko V. Experimental investigations of neutron cross sections for tungsten isotopes atomic nuclei: ¹⁸¹W (T_1/2 = 121.2 days), stable ¹⁸⁰W. Proc. of the 2-nd Int. Conf. "Current Problems in Nuclear Physics and Atomic Energy", NPAE-Kyiv2008 (Kyiv, 2009) Part 11, p. 528.

5. Libman V., Maluk I., Razbudey V. et al. Complex of Installations for Experimental Works on Neutron Capture Synovectomy at Kiev Nuclear Reactor. Sci. Bull. Uzhgorod. (Ser. Biol.) 27 (2010) 193.

6. Ворона П. М., Ісакаc І. Е., Шустов В. О. Оптимізація нейтронно-фізичних параметрів дослідницького реактора для експериментальних досліджень нейтронних перерізів радіоактивних ядер. Ядерні та радіаційні технології 6 (2006) 67.