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Designs of new components for ITER ECH&CD transmission lines
2010 Edition, September 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The ITER Electron Cyclotron Heating and Current Drive (ECH&CD) transmission line components will need to be suitable for 2 MW cw operation and have high transmission efficiency. The high heat loads compared to existing transmission...

Progress on design and testing of corrugated waveguide components for ITER ECH&CD transmission lines
2007 Edition, September 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The performance requirement of 1 (possibly 2) MW cw at 170 GHz for ITER electron cyclotron heating & current drive transmission line components is much more demanding than the 1 MW, 5 to 10 s performance, generally at 110 GHz, that has been demonstrated on present...

ITER ECH transmission system test stand and prototype component development
2010 Edition, June 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Summary form only given. Progress in developing a test stand for high power testing of prototype ECH components for ITER will be described. The US ITER Project Office is responsible for providing the ECH transmission lines...

Low power testing of losses in components for the ITER ECH transmission lines
2007 Edition, September 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The transmission lines (TLs) for ITER electron cyclotron heating require extremely low losses, since the 24 MW of power generated by the 170 GHz gyrotrons should be delivered to the plasma with an efficiency of 83% or more. We are developing cold-test...

Design and high power testing of ITER ECH&CD transmission line components
2009 Edition, September 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The ITER Electron Cyclotron Heating and Current Drive (ECH&CD) transmission line components will need to be suitable for 1-2 MW cw operation. The high heat loads compared to existing transmission lines will require enhanced cooling and,...

Preliminary design of the ITER ECH upper launcher
2011 Edition, June 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The design of the ITER electron cyclotron launchers recently reached the preliminary design level -the last major step before design finalization. The ITER ECH system contains 24 installed gyrotrons providing a maximum ECH injected power of 20 MW through...

Calculation and measurement of higher order mode losses in ITER ECH transmission lines
2009 Edition, September 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The ITER transmission lines (TLs) must be designed to deliver 20 MW from a 24 MW, 170 GHz gyrotron system. Miter bends are the main source of loss for these highly overmoded, corrugated, cylindrical waveguide TLs. Previous estimates have used only a pure HE 11...

Testing Needs for ITER ECH Transmission Line Components
2006 Edition, September 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The performance requirement of 1 (possibly 2) MW cw at 170 GHz for ITER electron cyclotron heating and current drive transmission line components is much more demanding than the 1 MW 10 s performance, generally at 110 GHz, that has been demonstrated on present...

ITER ECH transmission system test stand and prototype component development
2011 Edition, June 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Initial results for high power testing at ORNL of prototype ECH components for ITER will be presented. The US ITER Project Office is responsible for providing the ITER ECH transmission line system. Evacuated 63.5 mm...

Design status of ITER ECH upper launcher mirrors
2007 Edition, June 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The ITER ECH upper launcher is devoted to directing up to eight 2-MW beams per port plug over half of the plasma cross section. A focusing mirror is used to achieve a very narrow deposition profile to stabilize MHD activity such as the neoclassical tearing modes (NTMs) and the...

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