ITER ECRH upper launcher torus diamond window – Prototyping, testing and qualification

Pressure tests supporting the qualification of the ITER EC H&CD upper launcher diamond window

“…During the ongoing prototype work the test program for the bare disks has been developed and exercised successfully with diamond disks from Diamond Materials Freiburg [8]. The test programs for the window sub-assembly and the complete assembly are evolving.…”

“…Table 1 gives an overview of some main experiments/tests that are necessary for the window qualification. For all these measurements, acceptance criteria have been defined or will be defined in near future [8]. Additional experiments, e.g.…”

ITER ECRH Upper Launcher: Test plan for qualification of the Diamond Torus Window Prototype III

“…With respect to the previous window prototypes (Prototype I and Prototype II) [2], the design of the window was updated and optimized by FEM analyses and the application of the ASME Sec. III -Subsection NC code.…”

“…Two nickel rings, named spacer rings, connect the cuffs to corrugated stainless steel waveguides, which are inserted into the cuffs leaving a 100 µm gap with the diamond disk. This 100 µm have been evaluated during Prototype II manufacturing and testing (within F4E-OPE140) [2,4].…”

ITER ECRH Upper Launcher diamond window – Qualification and testing of a Protection Important Component

“…In the framework of a contract with F4E, KIT develops the testing and qualification program for a window prototype and will execute the prototype tests. [2] [3]. The tests range from standard tests for geometry control, vacuum and leakage tests up to mm-wave-transmission tests for which a dedicated measurement facility (FABRY-PEROT-resonator) is available at KIT [3] [1].…”