Paper |
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MOPA12 |
Commissioning of HOM Detectors in the First Cryomodule of the LCLS-II Linac |
69 |
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- J.A. Diaz Cruz
UNM-ECE, Albuquerque, USA
- B.T. Jacobson, N.R. Neveu, J.P. Sikora
SLAC, Menlo Park, California, USA
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Long-range wakefields (LRWs) may cause emittance dilution effects. LWRs are especially unwanted at facilities with low emittance beams like the LCLS-II at SLAC. Dipolar higher-order modes (HOMs) are a set of LRWs that are excited by off-axis beams. Two 4-channel HOM detectors were built to measure the beam-induced HOM signals for TESLA-type superconducting RF (SRF) cavities; they were tested at the Fermilab Accelerator Science and Technology (FAST) facility and are now installed at SLAC. The HOM detectors were designed to investigate LRW effects on the beam and to help with beam alignment. This paper presents preliminary results of HOM measurements at the first cryomodule (CM01) of the LCLS-II linac and describes the relevant hardware and setup of the experiment.
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DOI • |
reference for this paper
※ doi:10.18429/JACoW-NAPAC2022-MOPA12
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About • |
Received ※ 09 August 2022 — Accepted ※ 20 August 2022 — Issue date ※ 31 August 2022 |
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