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ASSESSMENT OF THE CONTROL ROD AND BURNABLE ABSORBER ASSEMBLY EFFICIENCY ...
...The absorber rods are used for compensation of the VVER-1000 fresh fuel excess reactivity and in the reactor control system. The isotope ?10 is used as absorber in both types of rods....
https://inis.iaea.org/records/3c8fv-h8j64/files/38059189.pdf?download=1
WWER-1000 CONTROL ROD MATERIALS: XA0053640 EXPERIENCE AND DEVELOPMENT V ...
...Since 1971, the Moscow Polimetal Plant has produced RCCAs for WWERs-1000. The main operation characteristics of the WWER-1000 are given in Tables V and VI and Figs. 1-5. The main absorber material requirements are:...
https://www.osti.gov/etdeweb/servlets/purl/20045882
PowerPoint Presentation
...Increasing the height of the Dy2O3·TiO2absorber stack enables the removal of the B4C absorber, which exhibits a high burnup rate of the 10B isotope and low radiation resistance, from the dense neutron (n, ?) flux area....
http://web.inrne.bas.bg/LWR2025/files/presentations/Thursday/Session6/6.4Zuyok%20(Tretiakov).pptx
WWER-1000 control rod materials: Experience and development
...These are austenitic and martensitic stainless steel, alloys based on Zr, Al and Ti and heat-resistant and high-temperature alloys based on Ni and Cr. The control rods are made in accordance to safety guides of the Russian Federation (e.g. OPB-88, PBJa RO AS-89) and meet high standards....
https://inis.iaea.org/records/mvpn2-9rk45
VVER-1000 fuel cycles analysis with different burnable absorbers
...The increase of fuel cycle efficiency is crucial for all reactor operators. Burnable absorbers can compensate excess reactivity at the beginning of th?...
https://www.sciencedirect.com/science/article/pii/S0029549319301384
Experience and development of WWER-1000 control rod materials
...This report presents the main results of the investigation of different absorbing elements of the WWER-1000 control and safety rods, stages of their upgrading and future perspectives....
https://www.osti.gov/etdeweb/biblio/21011699
Dysprosium titanate as an absorber material for control rods
...Disprosium titanate is an attractive control rod material for the thermal neutron reactors. Its main advantages are: insignificant swelling, no out-ga?...
https://www.sciencedirect.com/science/article/abs/pii/S002231150000129X
Application Notes and Protocols for Boron Carbide in Nuclear Reactor ...
...Core Requirements: This document provides a detailed overview of the application of boron carbide (B4C) in nuclear reactor control rods, with a focus on its material properties, performance under irradiation, and the experimental protocols for its characterization....
https://pdf.benchchem.com/76/Application_Notes_and_Protocols_for_Boron_Carbide_in_Nuclear_Reactor_Control_Rods.pdf
SECTION 2 THERMAL AND FAST REACTOR MATERIALS
...Generalization of the calculation results for the energy release in different materials revealed that the total energy release power of GT and CR materials is 5513 W and is contributed primarily by the energy release in B4C absorber (see Fig. 5,a), the contribution of other materials is much lower....
https://vant.kipt.kharkov.ua/ARTICLE/VANT_2024_4/article_2024_4_40.pdf
Calculation Analysis of VVER?1000 RCCA Elements to Justify Lifetime ...
...Introduction The rod cluster control assemblies (RCCAs) perform protective and control functions and are designed to quickly stop a nuclear reaction, maintain reactor power at the required level, transfer power from one level to another, and smoothing the energy release field by core height....
https://www.nuclear-journal.com/index.php/journal/article/download/1135/828/1706
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