Goubau-Line Set Up for Bench Testing Impedance of IVU32 Components
| Autor: | Volz, Paul, Meseck, Atoosa |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 2380:012026 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/2380/1/012026 |
| Popis: | The worldwide first in-vacuum elliptical undulator, IVUE32, is being developed at Helmholtz-Zentrum Berlin. The 2.5 m long device with a period length of 3.2 cm and a minimum gap of about 7 mm is to be installed in the BESSY II storage ring. It will deliver radiation in the soft X-ray range to several beamlines. The proximity of the undulator structure to the electron beam makes the device susceptible to wakefield effects which can influence beam stability. A complete understanding of its impedance characteristics is required prior to installation and operation, as unforeseen heating of components could have catastrophic consequences. To understand and measure the IVU’s impedance characteristics a Goubau-Line test stand is being designed. A Goubau-line is a single wire transmission line for high frequency surface waves with a transverse electric field resembling that of a charged particle beam out to a certain radial distance. A concept optimized for bench testing IVUE32-components will be discussed, microwave simulations will be presented together with first measurements from a test stand prototype. Proceedings of the 13th International Particle Accelerator Conference, IPAC2022, Bangkok, Thailand |
| Databáze: | OpenAIRE |
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