@article{7486,
  author = {D. M. S. Ronden and M. A. Henderson and B. Becket and T. Bigelow and J. Caughman and C. Darbos and F. Gandini and C. Nazare and D. Rasmussen and V. Udintsev},
  title = {The Engineering Analysis In Support Of The Iter Electron Cyclotron Heating And Current Drive Transmission Lines},
  abstract = {An engineering study has been poformed on the ITER electron cyclotron transmission lines with the aim of optimizing its conceptual design. The support types and optimum spacing, cooling, vacuum, seismic, and gravitational effects were reviewed. For the vacuum system it was shown that two pumps per line, with a capacity of 50 l/s, are sufficient. It was explained that the temperature variation inside the building is the predominant factor that influences the thermal expansion of the lines. The support strategy is one of minimizing the number of constraints. Variation in support interspacing reduces the degree of harmonic disturbances. The section of transmission line inside the ITER port cell was identified as critical with regards to occurrence of deformation and stresses. Potential solutions are described. The use of seismic breaks is discussed in light of the differences in foundation and structure of the ITER tokamak building and assembly hall. It is proposed that this interface be studied in more detail, after more data is available on the behavior of these buildings. The geometry of individual supports should be simple, with the fewest possible adjustments. The supports are designed to allow small movements of the waveguide to compensate for the thermal expansion or contraction. The transmission line system can be made for optimum alignment during nominal operating temperatures by prestressing during installation.
},
  year = {2011},
  journal = {Fusion Science and Technology},
  volume = {59},
  number = {4},
  pages = {718-728},
  month = {May},
  isbn = {1536-1055},
  doi = {10.13182/FST59-718},
  note = {ISI Document Delivery No.: 761TSTimes Cited: 1Cited Reference Count: 12},
  language = {English},
}