Journal
MEASUREMENT SCIENCE and TECHNOLOGY
Volume 26, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/26/9/094005
Keywords
alignment; BPM; linear collider; CLIC; PACMAN; beam diagnostic; impedance transformer
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The Compact Linear Collider (CLIC) requires a low emittance beam transport and preservation, thus a precise control of the beam orbit along up to 50 km of the accelerator components in the sub-mu m regime is required. Within the PACMAN3 (Particle Accelerator Components Metrology and Alignment to the Nanometer Scale) PhD training action a study with the objective of pre-aligning the electrical centre of a 15 GHz cavity beam position monitor (BPM) to the magnetic centre of the main beam quadrupole is initiated. Of particular importance is the design of a specific test bench to study the stretched-wire setup for the CLIC Test Facility (CTF3) BPM, focusing on the aspects of microwave signal excitation, transmission and impedance-matching, as well as the mechanical setup and reproducibility of the measurement method.
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