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| A look into modecleaner tank TCMa. The top plate with suspension unit and local controls has been lifted. One sees the three stacks and two modecleaner mirrors. | Stefan installing the double pendulums. | |
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| Stefan adjusting the beam director. Above: the local controls for the modecleaner mirrors. | In front of Stefan's face one can see the thin (60 µ) suspension wires reflecting light. | |
