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Analysis techniques for diagnosing runaway ion distributions in the reversed field pinch.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Jaehyeong Capecchi, William J. Bonofiglo, P. J. |
| Copyright Year | 2016 |
| Abstract | An advanced neutral particle analyzer (ANPA) on the Madison Symmetric Torus measures deuterium ions of energy ranges 8-45 keV with an energy resolution of 2-4 keV and time resolution of 10 μs. Three different experimental configurations measure distinct portions of the naturally occurring fast ion distributions: fast ions moving parallel, anti-parallel, or perpendicular to the plasma current. On a radial-facing port, fast ions moving perpendicular to the current have the necessary pitch to be measured by the ANPA. With the diagnostic positioned on a tangent line through the plasma core, a chord integration over fast ion density, background neutral density, and local appropriate pitch defines the measured sample. The plasma current can be reversed to measure anti-parallel fast ions in the same configuration. Comparisons of energy distributions for the three configurations show an anisotropic fast ion distribution favoring high pitch ions. |
| Starting Page | 11D819 |
| Ending Page | 11D819 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://plasma.physics.wisc.edu/uploadedfiles/journal/Kim1200.pdf |
| PubMed reference number | 27910497v1 |
| Volume Number | 87 |
| Issue Number | 11 |
| Journal | The Review of scientific instruments |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Analyzer, device Deuterium Ions Kiloelectronvolt |
| Content Type | Text |
| Resource Type | Article |
