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17–22 Oct 2016
Kyoto International Conference Center
Japan timezone

CXRS-edge Diagnostic in the Harsh ITER Environment

19 Oct 2016, 14:00
4h 45m
Kyoto International Conference Center

Kyoto International Conference Center

Takaragaike, Sakyo-ku, Kyoto 606-0001 Japan
Poster FIP - Fusion Engineering, Integration and Power Plant Design Poster 4

Speaker

Aleksandr Zvonkov (Project Center ITER)

Description

CXRS diagnostics supply a set of important plasma parameters of fusion plasmas. According to the system requirements, the CXRS diagnostics in ITER should supply plasma velocity (poloidal and toroidal), impurity ion densities and ion temperatures. The ITER CXRS-edge diagnostic system must measure these parameters over the outer half of the plasma radius. The use of CXRS in ITER encounters serious challenges. In the paper the decisions made to overcome these difficulties for ITER CXRS-edge diagnostics system are described. Testing results of SC Mo prototypes of first mirror are presented. The results of image quality modelling of optical scheme, where the in-vacuum optics uses only mirrors and all lenses are in the air part rather far from plasma, are presented. The results of laboratory test of the device developed for CXRS-edge on the base of transmission holographic gratings are presented.
Country or International Organization Russian Federation
Paper Number FIP/P4-17

Primary author

Aleksandr Zvonkov (Project Center ITER)

Co-authors

Maarten De Bock (ITER Organization) Sergey Tugarinov (Project Center ITER) Vadim Serov (Project Center ITER)

Presentation materials