| Title | Dual array 3D electron cyclotron emission imaging at ASDEX Upgrade |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | I.G.J. Classen, C.W. Domier, NC Luhmann, Jr., A.V. Bogomolov, W. Suttrop, J.E Boom, B.J Tobias, A.JH Donne, ASDEX Upgrade Team |
| Journal | Review of Scientific Instruments |
| Volume | 85 |
| Number | 11 |
| Pagination | 11D833 |
| Keywords | cyclotrons, image sensors, plasma devices, plasma diagnostics, plasma instability, sensor arrays, temperature measurement |
| Abstract | In a major upgrade, the (2D) electron cyclotron emission imaging diagnostic (ECEI) at ASDEX Upgrade has been equipped with a second detector array, observing a different toroidal position in the plasma, to enable quasi-3D measurements of the electron temperature. The new system will measure a total of 288 channels, in two 2D arrays, toroidally separated by 40 cm. The two detector arrays observe the plasma through the same vacuum window, both under a slight toroidal angle. The majority of the field lines are observed by both arrays simultaneously, thereby enabling a direct measurement of the 3D properties of plasma instabilities like edge localized mode filaments. |
| DOI | 10.1063/1.4891061 |
| Division | FP |
| Department | PDG |
| PID | 013d1c201fe42ac6185d001e3d6a8392 |
| Alternate Title | Rev. Sci. Instrum. |
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