Pelletized cold moderator of the IBR-2 reactor: current status and future development

6th European Conference on Neutron Scattering

Ananiev, V.^1 ; Beliakov, A.^1 ; Bulavin, M.^1 ; Verkhogliadov, A.^1 ; Kulagin, E.^1 ; Kulikov, S.^1 ; Mukhin, K.^1 ; Shabalin, E.^1 ; Loktaev, K.^2

Joint Institute for Nuclear Research, Russia^1

Obninsk Institute of Nuclear Power, Russia^2

关键词: Cold moderators;    Continuous charging;    Current status;    Neutron physics;    Physical experiments;    Three component;    Warm water;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012031/pdf
DOI  :  10.1088/1742-6596/746/1/012031

来源: IOP

【 摘 要 】

Current status and future development of the pelletized cold moderator of the IBR-2 reactor in Neutron Physics Laboratory of JINR are represented. Nowadays cold moderator works for physical experiments and allows conducting experiments in the region of wavelengths more than 4 Å up to 10-13 times faster in comparison with the warm water moderator. Future development of the pelletized cold moderator is aimed at increasing the time of its operation for experiments and is based on three components: creation of a system of continuous charging and discharging of beads, supplementation of various additives, and use of new materials, such as triphenylmethane.