Design and performance of the APPLE-Knot undulator
| Autor: | Shigemi Sasaki, Qiaogen Zhou, Shan Qiao, Rui Chang, Wei Zhang, Fuhao Ji, Mao Ye |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Nuclear and High Energy Physics
Brightness Photon Knot undulator Synchrotron radiation Radiation law.invention Optics law Thermal emittance Instrumentation Computer Science::Databases undulator Physics business.industry Undulator Mathematics::Geometric Topology Research Papers Synchrotron Apple-Knot undulator figure-8 undulator Beamline Physics::Accelerator Physics APPLE-8 undulator business APPLE undulator |
| Zdroj: | Journal of Synchrotron Radiation |
| ISSN: | 1600-5775 |
| DOI: | 10.1107/s1600577515006062 |
| Popis: | The design and performance of the Apple-Knot undulator which can generate photons with arbitrary polarization and low on-axis heat load are presented. Along with the development of accelerator technology, synchrotron emittance has continuously decreased. This results in increased brightness, but also causes a heavy heat load on beamline optics. Recently, optical surfaces with 0.1 nm micro-roughness and 0.05 µrad slope error (r.m.s.) have become commercially available and surface distortions due to heat load have become a key factor in determining beamline performance, and heat load has become a serious problem at modern synchrotron radiation facilities. Here, APPLE-Knot undulators which can generate photons with arbitrary polarization, with low on-axis heat load, are reported. |
| Databáze: | OpenAIRE |
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