Activity monitoring of a gaseous tritium source by beta induced X-ray spectrometry
| Autor: | M. Babutzka, Florian Priester, Ernst W. Otten, M. Steidl, S. Ebenhöch, Guido Drexlin, Marco Röllig, J. Bonn, Michael Sturm, Beate Bornschein |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Silicon drift detector Silicon Mechanical Engineering Radiochemistry chemistry.chemical_element Partial pressure Fusion power Mass spectrometry Nuclear Energy and Engineering chemistry Beta (plasma physics) General Materials Science Tritium Beryllium Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 88:1263-1266 |
| ISSN: | 0920-3796 |
| Popis: | For monitoring and control of gaseous tritium sources in fuel circulation systems of fusion reactors beta induced X-ray spectrometry (BIXS) seems to be an applicable method. The characteristics of a BIXS monitoring setup built at TLK were examined. A low-noise silicon drift detector (SDD) was used together with two thin beryllium windows evaporated with gold films of 100 nm for efficient X-ray production. The measured X-ray intensity was proportional to the tritium partial pressure and the average detection efficiency was evaluated as 32.6 × 10−8 cps/Bq. A tritium memory effect was revealed. From the results it was concluded that such a monitoring system would be a useful complement for tritium analytics devices if well designed in terms of memory effect suppression. |
| Databáze: | OpenAIRE |
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