| Title: | Water activation measurements in JET basement during DD and DT operations |
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| Authors: | ID Peric, Julijan, Institut "Jožef Stefan" (Author)
ID Govekar, Domen, Institut "Jožef Stefan" (Author)
ID Rupnik, Sebastjan, Institut "Jožef Stefan" (Author)
ID Snoj, Luka, Institut "Jožef Stefan" (Author)
ID Radulović, Vladimir, Institut "Jožef Stefan" (Author), et al. |
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| Files: |  URL - Source URL, visit https://iopscience.iop.org/article/10.1088/1361-6587/ae51c3/pdf
 PDF - Presentation file, download (1,71 MB)
MD5: F213054C5DB51CED35EA3577FD959155
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | In water-cooled D–T fusion tokamaks such as the Joint European Torus (JET), neutron activation of flowing water produces short-lived radionuclides that generate a distributed high-energy gamma and neutron radiation source in the water cooling circuit. The energy and intensity of the source are crucial factors in the design of cooling and shielding systems in future water-cooled deuterium–tritium fusion tokamaks such as ITER. While several past experiments provide fusion-relevant experimental data on water activation, the JET water activation experiment carried out during the 2023 DD and DT campaigns is the first such experiment in a fusion tokamak environment. In the water activation experiment at JET, two types of scintillation detectors were used to measure gamma rays from activated water in the basement below JET Octant 4. The system successfully recorded and processed data from over 1500 JET pulses, including both DD and DT operations, providing a robust data set for analyzing N-16 activity in cooling water. This manuscript describes the preparation of the JET water activation experiment, the calibration of the detectors and the analysis of the experimental data. |
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| Keywords: | water activation, JET, fluid activation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 22.10.2025 |
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| Article acceptance date: | 13.03.2026 |
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| Publication date: | 24.03.2026 |
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| Publisher: | IOP Publishing |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-13 |
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| Numbering: | Vol. 68, [article no.], iss. 3, 035023 |
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| Source: | Združeno kraljestvo |
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| PID: | 20.500.12556/DiRROS-28778  |
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| UDC: | 539.1 |
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| ISSN on article: | 1361-6587 |
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| DOI: | 10.1088/1361-6587/ae51c3 |
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| COBISS.SI-ID: | 273514755 |
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| Copyright: | © 2026 The Author(s). |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 30. 3. 2026;
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| Publication date in DiRROS: | 07.04.2026 |
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| Views: | 119 |
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| Downloads: | 85 |
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