Electromagnetic characterization of nonevaporable getter properties between 220–330 and 500–750 GHz for the Compact Linear Collider damping rings
| Autor: | Eirini Koukovini-Platia, Giovanni Rumolo, Carlo Zannini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics and Astronomy (miscellaneous) Ion beam Compact Linear Collider 010308 nuclear & particles physics business.industry Surfaces and Interfaces Electron 7. Clean energy 01 natural sciences Accelerators and Storage Rings Nuclear magnetic resonance Optics Getter 0103 physical sciences Physics::Accelerator Physics lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Transmission coefficient 010306 general physics business Electrical impedance Microwave Beam (structure) |
| Zdroj: | Physical Review Accelerators and Beams, Vol 20, Iss 1, p 011002 (2017) |
| ISSN: | 2469-9888 |
| Popis: | Due to its effective pumping ability, nonevaporable getter (NEG) coating is considered for the vacuum chambers of the Compact Linear Collider (CLIC) electron damping rings (EDR). The aim is to suppress fast beam ion instabilities. The electromagnetic (EM) characterization of the NEG properties up to ultra-high frequencies is required for the correct impedance modeling of the damping ring (DR) components. The properties are determined using rectangular waveguides which are coated with NEG. The method is based on a combination of complex transmission coefficient S-21 measurements with a vector network analyzer (VNA) and 3D simulations using CST Microwave Studio (R) (CST MWS). The frequency ranges discussed in this paper are 220-330 and 500-750 GHz. |
| Databáze: | OpenAIRE |
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