Large scale CW ECRH systems: Meeting a challenge
conference paper
Electron Cyclotron Resonance Heating (ECRH) systems for next step-fusion devices like W7-X and ITER operate in CW-mode and provide a large flexibility to comply with various physics demands such as plasma start-up, heating and current drive, as well as configuration and MHD control. The request for many different sophisticated applications results in a growing complexity of the systems. This is in conflict with the request for high availability, reliability, and maintainability, which arises from DEMO demands. 'Advanced' ECRH-components must, therefore, comply with both the complex physics demands and operational robustness and reliability. The W7-X ECRH system is the first CW facility of an ITER relevant size and is used as a test bed for such components. Results on improvements of gyrotrons, transmission components and launchers are presented together with proposals for future developments. © 2011 American Institute of Physics.
TNO Identifier
447271
ISSN
0094243X
ISBN
9780735409781
Source title
19th Topical Conference on Radio Frequency Power in Plasmas, 1 June 2011 through 3 July 2011, Newport, RI, USA
Pages
165-172