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A novel, compact arrangement for Ka-band mode couplers, which convert a rectangular waveguide TE(1,0) to cylindrical waveguide TE(2,1) mode, has been designed, constructed, and tested. The design features a set of longitudinal slots, positioned in regions of negligible current flow for the TE(2,1) mode, allowing its propagation to be preferentially favored,(More)
The installation of the Large Hadron Collider at CERN is being completed. The magnets are installed and the emphasis is now given to the commissioning, with the cool down of each of the 8 sectors to superfluid helium temperature in progress. This work describes the cryogenic instrumentation and control system and their commissioning.
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