Modeling and characterization of beryllium reflector elements under irradiation conditions

This study aims at modeling the beryllium reflector poisoning under neutron irradiation conditions and calculating the impact of beryllium poisoning on the core parameters of ETRR-2 research reactor. The CITVAP code was used to calculate the neutron flux and parameters of ETRR-2 core with beryllium...

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Main Authors: Ahmed H. Elhefnawy, Mohamed A. Gaheen, Hanaa H. Abou Gabal, Mohamed E. Nagy
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573323003935
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author Ahmed H. Elhefnawy
Mohamed A. Gaheen
Hanaa H. Abou Gabal
Mohamed E. Nagy
author_facet Ahmed H. Elhefnawy
Mohamed A. Gaheen
Hanaa H. Abou Gabal
Mohamed E. Nagy
author_sort Ahmed H. Elhefnawy
collection DOAJ
description This study aims at modeling the beryllium reflector poisoning under neutron irradiation conditions and calculating the impact of beryllium poisoning on the core parameters of ETRR-2 research reactor. The CITVAP code was used to calculate the neutron flux and parameters of ETRR-2 core with beryllium reflector elements. The neutron flux in each reflector element was calculated to solve the modeling equations for the atomic densities of lithium-6 (6Li), tritium-3 (3H), and helium-3 (3He) using the BERYL program. The results are discussed based on CITVAP calculations of the core excess reactivity and cycle length Full Power Days (FPD). Possible solutions to minimize the degradation due to beryllium poisoning are also discussed and compared based on calculations.
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spelling doaj.art-27ea0a848b0c492687f27b93f07d1e052023-11-30T05:06:22ZengElsevierNuclear Engineering and Technology1738-57332023-12-01551245834590Modeling and characterization of beryllium reflector elements under irradiation conditionsAhmed H. Elhefnawy0Mohamed A. Gaheen1Hanaa H. Abou Gabal2Mohamed E. Nagy3Department of Nuclear Safety and Radiological Emergencies, NCRRT Centre, Egyptian Atomic Energy Authority (EAEA), Cairo, EgyptDepartment of Nuclear Safety and Radiological Emergencies, NCRRT Centre, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt; Corresponding author.Department of Nuclear and Radiation Engineering, Faculty of Engineering, Alexandria University, Alexandria, EgyptDepartment of Nuclear and Radiation Engineering, Faculty of Engineering, Alexandria University, Alexandria, EgyptThis study aims at modeling the beryllium reflector poisoning under neutron irradiation conditions and calculating the impact of beryllium poisoning on the core parameters of ETRR-2 research reactor. The CITVAP code was used to calculate the neutron flux and parameters of ETRR-2 core with beryllium reflector elements. The neutron flux in each reflector element was calculated to solve the modeling equations for the atomic densities of lithium-6 (6Li), tritium-3 (3H), and helium-3 (3He) using the BERYL program. The results are discussed based on CITVAP calculations of the core excess reactivity and cycle length Full Power Days (FPD). Possible solutions to minimize the degradation due to beryllium poisoning are also discussed and compared based on calculations.http://www.sciencedirect.com/science/article/pii/S1738573323003935Beryllium reflectorPoisoningCITVAPResearch reactorCore parameters
spellingShingle Ahmed H. Elhefnawy
Mohamed A. Gaheen
Hanaa H. Abou Gabal
Mohamed E. Nagy
Modeling and characterization of beryllium reflector elements under irradiation conditions
Nuclear Engineering and Technology
Beryllium reflector
Poisoning
CITVAP
Research reactor
Core parameters
title Modeling and characterization of beryllium reflector elements under irradiation conditions
title_full Modeling and characterization of beryllium reflector elements under irradiation conditions
title_fullStr Modeling and characterization of beryllium reflector elements under irradiation conditions
title_full_unstemmed Modeling and characterization of beryllium reflector elements under irradiation conditions
title_short Modeling and characterization of beryllium reflector elements under irradiation conditions
title_sort modeling and characterization of beryllium reflector elements under irradiation conditions
topic Beryllium reflector
Poisoning
CITVAP
Research reactor
Core parameters
url http://www.sciencedirect.com/science/article/pii/S1738573323003935
work_keys_str_mv AT ahmedhelhefnawy modelingandcharacterizationofberylliumreflectorelementsunderirradiationconditions
AT mohamedagaheen modelingandcharacterizationofberylliumreflectorelementsunderirradiationconditions
AT hanaahabougabal modelingandcharacterizationofberylliumreflectorelementsunderirradiationconditions
AT mohamedenagy modelingandcharacterizationofberylliumreflectorelementsunderirradiationconditions