Fabrication Process of Rounded Damped Detuned Structure

Details Fabrication Process of Rounded Damped Detuned Structure Fabrication Process of Rounded Damped Detuned Structure

2000-08-18

arxiv.org/abs/hep-ex/0008034v1

Physics

High Energy Physics

High Energy Physics - Experiment

3 pages

Scientific paper

Following the successful design and fabrication of Damped Detuned Structures (DDS), the JLC/NLC linear collider project advanced to Rounded Damped Detuned Structures (RDDS) with curved cross section of the cavity shape for increased shunt impedance. Various advanced techniques for fabricating RDDS1 disks comparing to those for DDS were established to satisfy the dimension accuracy of +-1 micron over the entire surface made by ultra-precision turning. These disks were assembled with almost the same stacking and bonding jigs and processes as those of DDS3 assembly. In consequence, the assembly showed little disk-to-disk misalignment within 1 micron before and after the process. Though, it had 200 micron smooth bowing, which was subsequently corrected as DDS3, and flares at both ends.

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