title: Ð Ð°ÑÑÐµÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÐÐ¾Ð½ÑÐµ-ÐÐ°ÑÐ»Ð¾ ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð¸Ð¹ Ð¸Ð¾Ð½Ð¸Ð·Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÑ Ðº ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð²ÑÐ³Ð¾ÑÐ¾Ð´ÐºÐ¸ Ð¸ Ð¾Ñ Ð¼ÐµÑÑÐ¾Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¢ÐÐ¡ Ð´Ð»Ñ ÐÐÐ­Ð -1000
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Calculating the sensitivity of the ionization chamber readings depending on the design of the core baffle and on the relative location of the ionizing chamber and the fuel assembly of the core
Creators: name: ÐÐ°Ð½ÑÑÐ¸Ð½, ÐÐ°Ð²ÐµÐ»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÐÐ­Ð -1000
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WWER-1000
ionizing chamber
effectivnes of reactor safety system
influence coefficients
core baffle
fa
Monte Carlo method

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description: The dissertation work is devoted to calculating the sensitivity of the ionization chamber readings depending on the design of the core baffle and on the relative location of the ionizing chamber and the fuel assembly of the core. The results of calculations of the influence coefficients for ionizing chambers No. 4, which is used during the experiment to measure the effectiveness of reactor safety system, and No. 3, which is shifted relative to the ionizing chamber No. 4 by 12Â°, are presented. The calculation of the influence coefficients for the ionizing chamber No. 8, the position of which corresponded to its position in the VVER-1200 reactor, and which is also used in an experiment to measure the effectiveness of reactor safety system, is also presented. Calculations were performed using the Monte Carlo method in the MCU software. The analysis of the obtained results is presented and the influence of the core baffle design and the relative position of the ionizing chambers and fuel assemblies on the cassette-by-cassette distribution of the coefficients of influence of the ionizing chamber is shown. It was shown that if the sensor is located in the center of the core rib, then the central fuel assemblies have a lower coefficient of influence than the extreme fuel assemblies, that is, there is a "shading" of the central fuel assemblies of the row. The source of such shading is the fences. If the sensor is displaced from the center of the core edge, the shading effect disappears.