Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/103914
Título: | 222 Rn emanation measurements for the XENON1T experiment | Autor: | Amaro, F. D. Cardoso, J. M. R. Lombardi, F Lopes, J. A. M. Santos, J. M. F. dos Silva, M. |
Data: | Abr-2021 | Editora: | Springer Nature | Título da revista, periódico, livro ou evento: | European Physical Journal C | Volume: | 81 | Número: | 4 | Resumo: | The selection of low-radioactive construction materials is of utmost importance for the success of lowenergy rare event search experiments. Besides radioactive contaminants in the bulk, the emanation of radioactive radon atoms from material surfaces attains increasing relevance in the effort to further reduce the background of such experiments. In this work, we present the 222Rn emanation measurements performed for the XENON1T dark matter experiment. Together with the bulk impurity screening campaign, the results enabled us to select the radio-purest construction materials, targeting a 222Rn activity concentration of 10 μBq/kg in 3.2 t of xenon. The knowledge of the distribution of the 222Rn sources allowed us to selectively eliminate problematic components in the course of the experiment. The predictions from the emanation measurements were compared to data of the 222Rn activity concentration in XENON1T. The final 222Rn activity concentration of (4.5±0.1) μBq/kg in the target of XENON1T is the lowest ever achieved in a xenon dark matter experiment. | URI: | https://hdl.handle.net/10316/103914 | DOI: | 10.1140/epjc/s10052-020-08777-z | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
sup222sup-Rn-emanation-measurements-for-the-XENON1T-experimentEuropean-Physical-Journal-C.pdf | 826.51 kB | Adobe PDF | Ver/Abrir |
Citações WEB OF SCIENCETM
16
Visto em 2/mai/2023
Visualizações de página
101
Visto em 16/out/2024
Downloads
43
Visto em 16/out/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Este registo está protegido por Licença Creative Commons