First results from the implementation of the ITER diagnostic residual gas analyzer prototype at Wendelstein 7-X
Fusion reactors and long pulse fusion experiments heavily depend on a continuous fuel cycle, which requires detailed monitoring of exhaust gases. We have used a diagnostic residual gas analyzer (DRGA) built as a prototype for ITER and integrated it on the most advanced stellarator fusion experiment,...
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| Veröffentlicht in: | Review of scientific instruments 2019-09, Vol.90 (9) |
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| creator | Schlisio, G. Klepper, C. C. Harris, J. H. Biewer, T. M. Winters, V. R. Wenzel, U. Kornejew, P. Laqua, H. Krychowiak, M. |
| description | Fusion reactors and long pulse fusion experiments heavily depend on a continuous fuel cycle, which requires detailed monitoring of exhaust gases. We have used a diagnostic residual gas analyzer (DRGA) built as a prototype for ITER and integrated it on the most advanced stellarator fusion experiment, Wendelstein 7-X (W7-X). The DRGA was equipped with a sampling tube and assessed for gas time of flight sample response, effects of magnetic field on gas detection and practical aspects of use in a state of the art fusion environment. The setup was successfully commissioned and operated and was used to observe the gas composition of W7-X exhaust gases. The measured time of flight gas response was found to be in the order of a second for a 7 m sample tube. High values of magnetic field were found to affect the partial pressure readings of the DRGA and suggest that additional shielding is necessary in future experimental campaigns. |
| doi_str_mv | 10.1063/1.5098125 |
| format | Article |
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The setup was successfully commissioned and operated and was used to observe the gas composition of W7-X exhaust gases. The measured time of flight gas response was found to be in the order of a second for a 7 m sample tube. 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(ORNL), Oak Ridge, TN (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First results from the implementation of the ITER diagnostic residual gas analyzer prototype at Wendelstein 7-X</atitle><jtitle>Review of scientific instruments</jtitle><date>2019-09-01</date><risdate>2019</risdate><volume>90</volume><issue>9</issue><issn>0034-6748</issn><eissn>1089-7623</eissn><abstract>Fusion reactors and long pulse fusion experiments heavily depend on a continuous fuel cycle, which requires detailed monitoring of exhaust gases. We have used a diagnostic residual gas analyzer (DRGA) built as a prototype for ITER and integrated it on the most advanced stellarator fusion experiment, Wendelstein 7-X (W7-X). The DRGA was equipped with a sampling tube and assessed for gas time of flight sample response, effects of magnetic field on gas detection and practical aspects of use in a state of the art fusion environment. 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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | OTHER INSTRUMENTATION |
| title | First results from the implementation of the ITER diagnostic residual gas analyzer prototype at Wendelstein 7-X |
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