RT Journal Article
T1 Radiation dose assessment of 7Be and activated corrosion products present in the hydrogen trap of IFMIF-DONES lithium system
A1 Martínez-Serrano, José Javier
A1 Qiu, Yuefeng
A1 Dézsi, Tomás
A1 Nitti, Francesco Saverio
A1 Ibarra, Ángel
K1 Radiación
K1 Corrosión
K1 Hidrógeno
AB The radiological impact that 7Be and activated corrosion products (ACP) dissolved in Li could have in normal operation and maintenance in the surroundings of the hydrogen trap (HT) of future IFMIF-DONES facility has been assessed. Ambient dose equivalent rates were calculated with radiation transport program MCNP at half height of trap. Four different Y contents were considered in the trap: 1, 3, 5 and 8 kg. In normal operation dose rates in the range 13.7–15.1 mSv/h have been found in contact with the trap and 0.28–0.31 mSv/h at 1 m of the trap. 7Be has a very low contribution to dose (3–3.7 µSv/h). Dose simulations have shown that a concrete wall 30 cm thick can reduce dose rates to acceptable dose limits. In maintenance operation the trap is drained and Li film remains attached to Y pebbles. Three possible Li film thickness have been considered: 10, 50 and 100 µm. Estimated 7Be activity is below exemption limits during maintenance. Assessed dose rates are in the range 34–1420 µSv/h at contact with the trap and a maximum of 10.9 µSv/h at 1 m of the trap.
PB Elsevier
YR 2024
FD 2024-02-17
LK https://hdl.handle.net/10630/30590
UL https://hdl.handle.net/10630/30590
LA eng
NO J. Javier Martínez-Serrano, Yuefeng Qiu, Tamás Dézsi, Francesco Saverio Nitti, Angel Ibarra, Radiation dose assessment of 7Be and activated corrosion products present in the hydrogen trap of IFMIF-DONES lithium system, Fusion Engineering and Design, Volume 201, 2024, 114269, ISSN 0920-3796, https://doi.org/10.1016/j.fusengdes.2024.114269
NO Funding for open access charge: Universidad de Málaga/CBUA.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026