title: ÐÐµÐ¹ÑÑÐ¾Ð½Ð½Ð¾-ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÐµÐ½Ð´Ð° ÐÐ¡Ð¢Ð Ð Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ°
titleType: Subtitle
title: Neutron-physical calculation of the ASTRA critical facility using specialized software
Creators: name: ÐÐ¾Ð½Ð°ÑÑÑÑÑÐºÐ¸Ñ, ÐÐ°ÑÐ¸Ñ
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: 2022
Subjects: ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐÑÐ¿ÑÑÐ°ÑÐµÐ»ÑÐ½ÑÐµ ÑÑÐµÐ½Ð´Ñ
ÑÐ°ÑÐ¾Ð²Ð°Ñ Ð·Ð°ÑÑÐ¿ÐºÐ°
Ð½ÐµÐ¹ÑÑÐ¾Ð½Ð½Ð¾-ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ
pebble bed
neutron-physical calculation

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description: The subject of the graduate qualification work is Â«Neutron-physical calculation of the ASTRA critical facility using specialized softwareÂ». As part of this work, modeling was executed and neutron-physical calculations of the Astra Critical Facility with regular and random pebble bed in the core were performed using the Serpent program. In the course of the work, the following tasks were solved: To study the main specific design features of the critical stand; To create a model of the main elements and materials of the facility and different types of backfills in the core in the Serpent program; To perform neutron-physical calculations for regular and random pebble bed of fuel rods; To correct the created model of the stand to ensure a self-sustaining chain reaction of fission; To analyze the results of the simulation performed using the Serpent software. As a result of the work, it was found that the use of the Serpent program allows to achieve modeling accuracy of at least 94%. To obtain results close to experimental ones, it is necessary to adjust the model by increasing the number of fuel rods in the core, which requires the use of additional software.