Progress in ITER ECE diagnostic design and integration

Liu, Y.; Udintsev, V. S.; Danani, S.; Paraiso, G.; Taylor, G.; Austin, M. E.; Basile, A.; Beno, J. H.; Bunkowski, B.; Feder, R.; Giacomin, T.; Guirao, J.; Houshmandyar, S.; Huang, H.; Hubbard, A. E.; Hughes, S.; Jha, S.; Khodak, A.; Kumar, R.; Kumar, S.; Kumar, V.; Maquet, P.; Nazare, C.; Neilson, H.; Ouroua, A.; Pak, S.; Pandya, H. K.B.; Penney, C.; Phillips, P. E.; Pish, S.; Poissy, J.; Rowan, W. L.; Saxena, A.; Schneider, M.; Strank, S. M.; Thomas, S.; Vayakis, G.; Waelbroeck, F. L.; Walsh, M. J.; Worth, L.

doi:10.1088/1748-0221/17/04/c04019

Progress in ITER ECE diagnostic design and integration

Journal Article · Wed Apr 20 00:00:00 EDT 2022 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/17/04/c04019· OSTI ID:1869954

Liu, Y. ^[1]; Udintsev, V. S. ^[2]; Danani, S. ^[3]; Paraiso, G. ^[4]; Taylor, G. ^[4]; Austin, M. E. ^[5]; Basile, A. ^[4]; Beno, J. H. ^[5]; Bunkowski, B. ^[5]; Feder, R. ^[4]; Giacomin, T. ^[2]; Guirao, J. ^[2]; Houshmandyar, S. ^[5]; Huang, H. ^[5]; Hubbard, A. E. ^[6]; Hughes, S. ^[2]; Jha, S. ^[3]; Khodak, A. ^[4]; Kumar, R. ^[3]; Kumar, S. ^[3] more »

ITER Organization, St. Paul Lez Durance (France); Chinese Academy of Sciences (CAS), Hefei (China). Inst. of Plasma Physics
ITER Organization, St. Paul Lez Durance (France)
ITER-India, Gandhinagar (India). Inst. for Plasma Research
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of Texas, Austin, TX (United States). Inst. for Fusion Studies
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
Bertin Technologies, Aix-en-Provence (France)
Fircroft France, Versailles (France)

The ITER electron cyclotron emission (ECE) diagnostic system has primary roles in providing measurements of the core electron temperature profile and the electron temperature fluctuation associated with the neoclassical tearing modes. The ITER ECE system includes a radial and oblique line-of-sight. Four 43-meter long low-loss transmission lines (TLs) are designed to transmit millimeter wave power in the frequency range of 70–1000 GHz in both X- and O-mode polarization from the port plug to the ECE instrumentation room in the diagnostic building. The measurement instrumentation includes two Fourier transform spectrometer (FTS) systems and two radiometer systems. The Indian Domestic Agency (IN-DA) and United States Domestic Agency share the responsibility. The IN-DA scope excluding instrumentation and control has passed its preliminary design review and is progressing towards the final design review (FDR). In parallel, the diagnostic integration in different areas is ongoing. Furthermore, several captive components for the TLs have passed FDR and will be manufactured for installation in the tokamak building soon. A peer review meeting has been held on the prototype hot calibration source, and its integration and new thermal analysis in the diagnostic shield module are continuing. A prototype TL is being tested. A prototype polarizing Martin-Puplett type FTS, operating in the frequency range 70–1000 GHz, features an in-vacuo fast scanning mechanism and a cryo-cooled dual-channel THz detector system. Its performance has been assessed in detail against ITER requirements.

View Accepted Manuscript (DOE)

Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1869954

Journal Information:: Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 04 Vol. 17; ISSN 1748-0221

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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