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Field Emission in Superconducting Accelerators: Instrumented Measurements for Its Understanding and Mitigation |
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- R.L. Geng, A. Freyberger, R.A. Legg, R. Suleiman
JLab, Newport News, Virginia, USA
- A.S. Fisher
SLAC, Menlo Park, California, USA
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Several new accelerator projects are adopting superconducting accelerator technology. When accelerating cavities maintain high RF gradients, field emission, the emission of electrons from cavity walls, can occur and may impact operational cavity gradient, radiological environment via activated components, and reliability. In this talk, we will discuss instrumented measurements of field emission from the two 1.1 GeV superconducting continuous wave (CW) linacs in CEBAF. The goal is to improve the understanding of field emission sources originating from cryomodule production, installation and operation. Such basic knowledge is needed in guiding field emission control, mitigation, and reduction toward high gradient and reliable operation of superconducting accelerators.
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Slides TH1AB1 [7.301 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2017-TH1AB1
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