Facility Details: TeRRa

Organization / Localization: JAEA
Country: Japan
Facility Status:
Focus area 2: Fission product chemistry, transport and remobilization behaviour in RCS (2)
Facility Description: FP release and transport
Test Identification: TeRRa-CsI TeRRa-RBS-1 TeRRa-RBS-2
SA-Related Topics / Phenomena:
Measured Parameters: TH parameters, deposited mass, gas flow rates, aerosol concentration
Modelling:
Simulation Code: ECUME
Experimental Research Program:
Link to PIRT:
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References: [1] https://doi.org/10.1021/acsomega.1c04441
Contributed By: T. Lind
Facility Description: It consists of a high-frequency induction furnace, an electric resistance furnace, and a thermal gradient tube (TGT), aerosol spectrometer, and gas trapping system.
Test Identification: TeRRa-RBS-1 TeRRa-RBS-2 TeRRa CsIMo-1 TeRRa CsIMo-2
SA-Related Topics / Phenomena:
Measured Parameters: Temperature, compound identification with XRD and Raman spectroscopy, concentrations of Cs, I and B, morpholofy of deposits.
Modelling: Steam-boron (addition of B2O3 powder) and steam effect, presence or not of alumina, temperature range of TGT 1000-400K Molar ratio Mo/Cs
Simulation Code: Not found
Experimental Research Program: JAEA and VTT under the support of the Academy of Finland (grant number 294995)
Link to PIRT: RCS chemistry and transport of FPs: ST12, ST13, ST14, ST15, ST18
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References: [1] M. Rizaal et al., Revaporization Behavior of Cesium and Iodine Compounds from Their Deposits in the Steam-Boron Atmosphere. ACS Omega 48. p. 32695-32708, 2021
[2] M. Rizaal et al., Impact of molybdenum on iodine chemistry during fission product transport phenomenology, Annals of Nuclear Energy, 218, 111433, 2025, https://doi.org/10.1016/j.anucene.2025.111433




Implemented as part of the Seaknot EU funded project (HORIZON-EURATOM-2021-NRT-01 under Grant Agreement No. 101060327) - WP2.6 UNIPI (2024-2026)