| Główna > Fusion Neutron-Induced Soft Errors During Long Pulse D–D Plasma Discharges in the WEST Tokamak |
| Article | |
| Title | Fusion Neutron-Induced Soft Errors During Long Pulse D–D Plasma Discharges in the WEST Tokamak |
| Author(s) | Moindjie, S (IM2NP, Marseille) ; Munteanu, D (IM2NP, Marseille) ; Autran, J L (IM2NP, Marseille ; Rennes U.) ; Dentan, M (CEA Cadarache) ; Moreau, P (CEA Cadarache) ; Pellissier, F P (CEA Cadarache) ; Santraine, B (CEA Cadarache) ; Bucalossi, J (CEA Cadarache) ; Malherbe, V ; Thery, T ; Gasiot, G ; Roche, P ; Cecchetto, M (CERN) ; Alia, R Garcia (CERN) |
| Publication | 2024 |
| Number of pages | 7 |
| In: | IEEE Trans. Nucl. Sci. 71, 8 (2024) pp.1496-1502 |
| In: | Conference on Radiation and its Effects on Components and Systems (RADECS 2023), Toulouse, France, 25 - 29 Sep 2023, pp.1496-1502 |
| DOI | 10.1109/TNS.2023.3347673 |
| Subject category | Detectors and Experimental Techniques |
| Abstract | We have performed real-time soft error rate (RT-SER) measurements on bulk 65-nm static random access memories (SRAMs) during deuterium-deuterium (D-D) plasma operation at W-tungsten–Environment in Steady-state Tokamak (WEST). The present measurement campaign was characterized by the production of several tens of long pulse discharges ( 60 s) and by a total neutron fluence (at the level of the circuits under test) up to $10^9$ n$\cdot$cm$^2$ , improving the error statistics by a factor of more than 6 with respect to the first measurements obtained in 2020. The experimental results demonstrate the occurrence of bursts of single-event upsets (SEUs) during the most efficient shots and 12% of multiple cell upset (MCU) events. Time-resolved data also show that MCUs are preferentially detected in the last part of these long pulses, providing further evidence that higher energy neutrons, initiated by deuterium-tritium (D-T) reactions due to triton burn-up in the D-D plasma, may play a role in the production of MCUs that cannot be attributed in such large proportions to “low-energy” neutrons produced in D-D reactions. |
| Copyright/License | © 2024 IEEE |