Author/Authors :
Zaccaria، نويسنده , , P. and Bello، نويسنده , , S. Dal and Marcuzzi، نويسنده , , D. and Masiello، نويسنده , , A. and Cordier، نويسنده , , J.J. and Hemsworth، نويسنده , , R. and Antipenkov، نويسنده , , A. and Day، نويسنده , , C. and Dremel، نويسنده , , M. and Mack، نويسنده , , A. and Jones، نويسنده , , T. and Coniglio، نويسنده , , A. and Pillon، نويسنده , , M. and Sandri، نويسنده , , S. and Speth، نويسنده , , E. and Tanga، نويسنده , , A. and Antoni، نويسنده , , V. and Pietro، نويسنده , , E. Di and Mondino، نويسنده , , P.L.، نويسنده ,
Abstract :
The ITER neutral beam test facility (NBTF) is planned to be built, after the approval of the ITER construction and the choice of the ITER site, with the agreement of the ITER international team and of the JA and RF participant teams. The key purpose is to progressively increase the performance of the first ITER injector and to demonstrate its reliability at the maximum operation parameters: power delivered to the plasma 16.5 MW, beam energy 1 MeV, accelerated D− ion current 40 A, pulse length 3600 s.
l interventions for possible modifications and for maintenance are expected during the early operation of the ITER injector in order to optimise the beam generation, aiming and steering. The maintenance scheme and the related design solutions are therefore a very important aspect to be considered for the NBTF design.
per describes consistently the many interrelated aspects of the design, such as the optimisation of the vessel and cryopump geometry, in order to get a better maintenance flexibility, an easier man access and a larger access for diagnostic and monitoring.
Keywords :
Vessel , Cryopump , ACCESS , Neutral beam injector , Maintenance
