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Aguiam DE, Silva A, Bobkov V, Carvalho PJ, Carvalho PF, Cavazzana R, Conway GD, D'Arcangelo O, Fattorini L, Faugel H, Fernandes A, Fünfgelder H, Gonçalves B, Guimarais L, De Masi G, Meneses L, Noterdaeme JM, Pereira RC, Rocchi G, Santos JM, Tuccillo AA, Tudisco O. Implementation of the new multichannel X-mode edge density profile reflectometer for the ICRF antenna on ASDEX Upgrade. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:11E722. [PMID: 27910673 DOI: 10.1063/1.4961558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A new multichannel frequency modulated continuous-wave reflectometry diagnostic has been successfully installed and commissioned on ASDEX Upgrade to measure the plasma edge electron density profile evolution in front of the Ion Cyclotron Range of Frequencies (ICRF) antenna. The design of the new three-strap ICRF antenna integrates ten pairs (sending and receiving) of microwave reflectometry antennas. The multichannel reflectometer can use three of these to measure the edge electron density profiles up to 2 × 1019 m-3, at different poloidal locations, allowing the direct study of the local plasma layers in front of the ICRF antenna. ICRF power coupling, operational effects, and poloidal variations of the plasma density profile can be consistently studied for the first time. In this work the diagnostic hardware architecture is described and the obtained density profile measurements were used to track outer radial plasma position and plasma shape.
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Affiliation(s)
- D E Aguiam
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - A Silva
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - V Bobkov
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
| | - P J Carvalho
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - P F Carvalho
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - R Cavazzana
- Consorzio RFX (CNR, ENEA, INFN, Universitá di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - G D Conway
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
| | - O D'Arcangelo
- ENEA, Dipartimento FSN, C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
| | - L Fattorini
- Universitá degli Studi Milano Bicocca, Dipartimento di Fisica, Piazza della Scienza 3, 20126 Milano, Italy
| | - H Faugel
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
| | - A Fernandes
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - H Fünfgelder
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
| | - B Gonçalves
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - L Guimarais
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - G De Masi
- Consorzio RFX (CNR, ENEA, INFN, Universitá di Padova, Acciaierie Venete SpA), Corso Stati Uniti 4, 35127 Padova, Italy
| | - L Meneses
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - J M Noterdaeme
- Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
| | - R C Pereira
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - G Rocchi
- ENEA, Dipartimento FSN, C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
| | - J M Santos
- Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - A A Tuccillo
- ENEA, Dipartimento FSN, C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
| | - O Tudisco
- ENEA, Dipartimento FSN, C. R. Frascati, Via E. Fermi 45, 00044 Frascati, Roma, Italy
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Behler K, Blank H, Buhler A, Cole R, Drube R, Engelhardt K, Eixenberger H, Hicks N, Lohs A, Lüddecke K, Mlynek A, Mszanowski U, Merkel R, Neu G, Raupp G, Reich M, Suttrop W, Treutterer W, Zilker M. Real-time standard diagnostic for ASDEX Upgrade. FUSION ENGINEERING AND DESIGN 2010. [DOI: 10.1016/j.fusengdes.2010.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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