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Generation and Analysis of Tritium-Substituted Methane

Díaz Barrero, D.; Le, T. L. 1; Niemes, S. ORCID iD icon 1; Welte, S. 1; Schlösser, M. ORCID iD icon 1; Bornschein, B. 1; Telle, H. H.
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)


An unavoidable category of molecular species in large-scale tritium applications, such as nuclear fusion, are tritium-substituted hydrocarbons, which form by radiochemical reactions in the presence of (circulating) tritium and carbon (mainly from the steel of vessels and tubing). Tritium-substituted methane species, CQ$_4$ (with Q = H,D,T), are often the precursor for higher-order reaction chains, and thus are of particular interest. Here we describe the controlled production of CQ$_4$ carried out in the CAPER facility of the Tritium Laboratory Karlsruhe, exploiting catalytic reactions and species enrichment via the CAPER integral permeator. CQ$_4$ was generated in substantial quantities (>1000 cm$^3$ at ~850 mbar, with CQ$_4$content of up to ~20%). The samples were analyzed using laser Raman and mass spectrometry to determine the relative isotopologue composition and to trace the generation of tritiated chain hydrocarbons.

Verlagsausgabe §
DOI: 10.5445/IR/1000159426
Veröffentlicht am 15.06.2023
DOI: 10.1080/15361055.2023.2194235
Zitationen: 1
Web of Science
Zitationen: 1
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2024
Sprache Englisch
Identifikator ISSN: 1536-1055, 0748-1896, 1943-7641
KITopen-ID: 1000159426
HGF-Programm 51.13.01 (POF IV, LK 01) Neutrinophysik und Dunkle Materie
Erschienen in Fusion Science and Technology
Verlag Taylor and Francis
Band 80
Heft 3-4
Seiten 530-539
Vorab online veröffentlicht am 25.05.2023
Schlagwörter Tritium-substituted methane, mass spectrometry, Raman spectroscopy, measurement and monitoring
Nachgewiesen in Dimensions
Web of Science
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