"A 20MW Lower Hybrid Current Drive system using an antenna based on the Passive-Active Multijunction. (PAM) concept is envisaged on ITER. This paper gives an overview of the mechanical analysis, modeling. and design carried out on two major elements of the antenna: the grill front face, and the RF feed-through. or windows. The front face will have to withstand high heat and fast neutrons fluxes directly from the. plasma. It will be actively cooled and present a beryllium coating upon ITER requirement. The RF window. being a critical safety importance class component (SIC) because of its tritium confinement function, two. of them will be put in series on each line to achieve a double barrier. A design of a water cooled 5GHz. CW RF “pillbox” window capable of sustaining 500kW of transmitted power is proposed. Both studies. allow to move forward, and focus on critical issues, such as manufacturing processes and R&D associated. programs including tests of mock-ups."
Marfisi, L., Goniche, M., Hamlyn Harris, C., Hillairet, J., Artaud, J.F., Bae, Y.S., et al. (2011). Thermal and Mechanical Analysis of ITER-Relevant LHCD Antenna Elements. FUSION ENGINEERING AND DESIGN, 86(6-8), 810-814 [10.1016/j.fusengdes.2011.01.025].
Thermal and Mechanical Analysis of ITER-Relevant LHCD Antenna Elements
CECCUZZI, SILVIO;PAJEWSKI, LARA;SCHETTINI, Giuseppe;
2011-01-01
Abstract
"A 20MW Lower Hybrid Current Drive system using an antenna based on the Passive-Active Multijunction. (PAM) concept is envisaged on ITER. This paper gives an overview of the mechanical analysis, modeling. and design carried out on two major elements of the antenna: the grill front face, and the RF feed-through. or windows. The front face will have to withstand high heat and fast neutrons fluxes directly from the. plasma. It will be actively cooled and present a beryllium coating upon ITER requirement. The RF window. being a critical safety importance class component (SIC) because of its tritium confinement function, two. of them will be put in series on each line to achieve a double barrier. A design of a water cooled 5GHz. CW RF “pillbox” window capable of sustaining 500kW of transmitted power is proposed. Both studies. allow to move forward, and focus on critical issues, such as manufacturing processes and R&D associated. programs including tests of mock-ups."I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
