The basis of design for the Ion Cyclotron Range of Frequency (ICRF) antennas of the Divertor Tokamak Test facility (DTT) is defined and the most suitable design solutions abiding by such requirements are shown. DTT will be equipped with one, two or three ICRF modules – the final choice to be taken during the first years of operations – and each module will have two antennas. Each antenna has to reliably couple a radiofrequency (RF) power ≥1.5 MW in the range 60÷90 MHz to the single-null, 6 T, 5.5 MA, DTT scenario and allow for remote (dis)assembling and maintenance operations of its plasma-facing components. Most documented antenna concepts are considered and a large set of alternatives, based on toroidal arrays of two, three or four straps with different shapes and constraints, is quantitatively assessed in terms of RF performances. Two most promising candidates are identified: the one, selected to access a detailed design phase, relies on traditional radiating elements, the other is an innovative concept requiring some R&D.

The ICRF antenna of DTT: Design status and perspectives / Ceccuzzi, S.; Baiocchi, B.; Cardinali, A.; Di Gironimo, G.; Granucci, G.; Liuzza, D.; Mascali, D.; Mauro, G. S.; Milanesio, D.; Mirizzi, F.; Pidatella, A.; Piras, S.; Ponti, C.; Ravera, G. L.; Schettini, G.; Torrisi, G.; Tuccillo, A. A.; Vecchi, G.. - In: AIP CONFERENCE PROCEEDINGS. - ISSN 0094-243X. - ELETTRONICO. - 2984:(2023). (Intervento presentato al convegno 24th Topical Conference on Radio-Frequency Power in Plasmas tenutosi a Annapolis, USA nel 26–28 September 2022) [10.1063/5.0162417].

The ICRF antenna of DTT: Design status and perspectives

Milanesio, D.;Vecchi, G.
2023

Abstract

The basis of design for the Ion Cyclotron Range of Frequency (ICRF) antennas of the Divertor Tokamak Test facility (DTT) is defined and the most suitable design solutions abiding by such requirements are shown. DTT will be equipped with one, two or three ICRF modules – the final choice to be taken during the first years of operations – and each module will have two antennas. Each antenna has to reliably couple a radiofrequency (RF) power ≥1.5 MW in the range 60÷90 MHz to the single-null, 6 T, 5.5 MA, DTT scenario and allow for remote (dis)assembling and maintenance operations of its plasma-facing components. Most documented antenna concepts are considered and a large set of alternatives, based on toroidal arrays of two, three or four straps with different shapes and constraints, is quantitatively assessed in terms of RF performances. Two most promising candidates are identified: the one, selected to access a detailed design phase, relies on traditional radiating elements, the other is an innovative concept requiring some R&D.
2023
978-0-7354-4604-5
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2981963