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WG4: Diagnostic/Control/Overall Protection PowerPoint Presentation
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WG4: Diagnostic/Control/Overall Protection
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  1. WG4: Diagnostic/Control/Overall Protection • Outcome of the meeting in Frascati October 2009: • The two most urgent points for group WG4: • to define the diagnosticability of LH possible ports 9, 11 and 14, from the point of view of the visible/IR camera and bolometry, in order to give a hint  on which one is more convenient. • the integration of the reflectometer waveguides with the antenna in the port plug-in.

  2. Port allocation 11 or 14 for LH? Horizontal port 14: • Located between two ICRH antennas (13 and 15). Likely to cause strong modifications in edge density (poloidally inhomogeneus), which may cause strong changes in coupling and hot spots. • To be avoided at all costs. Horizontal port 11: Seems to be optimum for transmission lines and generator placement. May still be magnetically connected to ICRH antenna in 13, since only 40 toroidally apart. Poor coverage by IR/VIS system.

  3. IR/VIS viewsfrom port plug EQ#09 D. Guilhem, Y. Corre, A. Geraud et al. ; « ITER Wide-Angle Viewing Thermographic and Visible System », EFDA_D_2D4ZQC (2007) EQ#09 RIGHT EQ#09 LEFT PP08 PP10 PP07 PP11 PP06 PP12 PP15 PP03 LH antenna in EQ#11 Marginal view of port plug #11 from the endoscope in #09  Risk of vignetting, i.e. “reduction of the brightness or saturation at the periphery”.

  4. TB NB NB NB LH RH IC EC IC TB -- RH TB RH Portplugsviewed by the horizontal IR/VIS system To the right: To the left: EQ#1 views: (3), 4, 5, 6, (7) (17), 16, 15, 14, (13) EQ#3 views: (5), 6, 7, 8, (9)(1), 18, 17, 16, (15) EQ#9 views: (11), 12, 13, 14, (15)(7), 6, 5, 4, (3) EQ#12 views: (14), 15, 16, 17, (18)(10), 9, 8, 7, (6) Port #11 is poorly covered by the horizontal IR/VIS system.

  5. Port allocation 9 for LH? Horizontal port 9: At present, an IR/VIS system is foreseen for 9. If one assumes that one moves the IR/VIS from 9 to 10, and put LH in 9, on can get a more optimum solution: Far away from ICRH antennas, 80 toroidally apart. The LH launcher, if located in port 9, would be well visible by the IR/VIS system in #12.  Generator and transmission line placement?

  6. IR/VIS views from port plug EQ#12 #12 LEFT #12 RIGHT PP14 PP10 PP15 PP09 PP18 PP06 The LH launcher, if in port 9, would be viewed by the IR/VIS system in #12.

  7. Port plugs viewed by the horizontal IR/VIS system, if the IR/VIS system in 9 moves to 10 LH TB NB NB NB RH IC EC IC TB -- RH TB RH To the right: To the left: EQ#1 views: (3), 4, 5, 6, (7) (17), 16, 15, 14, (13) EQ#3 views: (5), 6, 7, 8, (9)(1), 18, 17, 16, (15) EQ#10 views: (12), 13, 14, 15, (16)(8),7, 6, 5, (4) EQ#12 views: (14), 15, 16, 17, (18)(10), 9, 8, 7, (6) Moving IR/VIS from 9 to 10 does not change the overall viewing capability of the outer wall.