Detritiation of the Electrostatic Spectrometer of Troitsk Nu-mass Experiment
| Autor: | Boris V. Ivanov, V. S. Pantuev, A. N. Bukin, A. A. Semenov, M. I. Belyakov, A. I. Belesev, E. V. Geraskin, N. A. Ionov, V. I. Parfenov |
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| Rok vydání: | 2021 |
| Předmět: |
High Energy Physics - Experiment (hep-ex)
Nuclear and High Energy Physics Physics - Instrumentation and Detectors Nuclear Energy and Engineering Mechanical Engineering FOS: Physical sciences General Materials Science Instrumentation and Detectors (physics.ins-det) High Energy Physics - Experiment Civil and Structural Engineering |
| Zdroj: | Fusion Science and Technology. 78:44-55 |
| ISSN: | 1943-7641 1536-1055 |
| DOI: | 10.1080/15361055.2021.1951533 |
| Popis: | The paper describes methods and presents results of the Troitsk Nu-mass experiment spectrometer cleanup, which inner volume (40 m3) and surfaces (160 m2) was contaminated by 4.4 GBq of tritium. The Troitsk Nu-mass experiment of Institute for Nuclear Research of Russian Academy of Sciences, Moscow, is designed to measure the spectrum of electrons from tritium decays in order to search for hypothetical particles - sterile neutrinos. As a result of equipment failure, the spectrometer internal volume was contaminated with tritium. The contamination made measurements impossible and the research program stopped. The methods of vacuum extraction, hydrogen soaks, and water vapour soaks were used for cleanup. As a result of detritiation, the background level of the main detector of the Troitsk Nu-mass spectrometer decreased by more than 10 times, which made it possible to resume work. The results are consistent with the data obtained earlier for volumes in normal conditions in the air and can be used for planning work on detritiation of similar installations. Comment: 18 pages, 7 figures, 3 tables, acknowledgment added |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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