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RIS citation export for TUPO023: Preserving Micron Tolerances Through the Assembly Process of an X-band Accelerating Structure

AU  - Sauza-Bedolla, J.
AU  - Bursali, H.
AU  - Catalán Lasheras, N.
AU  - Grudiev, A.
AU  - Lebet, S.
AU  - Rodriguez-Castro, E.
AU  - Sobrino-Mompean, P.
AU  - Solodko, A.
AU  - Szypula, K. T.
ED  - Schaa, Volker RW
ED  - Pei, Guoxi
ED  - Chin, Yong Ho
ED  - Fu, Shinian
ED  - Zhao, Ning
TI  - Preserving Micron Tolerances Through the Assembly Process of an X-band Accelerating Structure
J2  - Proc. of LINAC2018, Beijing, China, 16-21 September 2018
CY  - Beijing, China
T2  - Linear Accelerator Conference
T3  - 29
LA  - english
AB  - The CLIC structures are designed for operating at X-Band, 2π/3 traveling wave mode with a loaded 100 MV/m gradient. Mechanical tolerances, at the submicron level, are required to satisfy the RF design constraints and beam dynamics and are reachable using ultra-precision diamond machining. However, inherent to the manufacturing process, there is a deviation from the nominal specifications and as a result; incorrect cavity dimensions produce a less efficient linac. Moreover, the assembly process increase the difference from the original geometry. As part of a cost and manufacturability optimization of the structures for mass production, this study aims to identify a correlation between frequency deviations and geometrical errors of the individual discs of the accelerating structures caused by the production process. A sensitivity analysis has been carried out to determine the most critical parameters. Cell frequency deviations have been monitored by bead pull measurements before and after bonding. Several accelerating structure prototypes have been tested to determine our assumptions and to assess if the assembly process preserves the tight tolerances achieved by machining.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 377
EP  - 379
KW  - cavity
KW  - damping
KW  - linac
KW  - simulation
DA  - 2019/01
PY  - 2019
SN  - 2226-0366
SN  - 978-3-95450-194-6
DO  - DOI: 10.18429/JACoW-LINAC2018-TUPO023
UR  - http://jacow.org/linac2018/papers/tupo023.pdf
ER  -