Segmented undulator for extensive polarization controls in ≦1 nm-RAD emittance rings

Iwao Matsuda, Susumu Yamamoto, Jun Miyawaki, Tadashi Abukawa, Takashi Tanaka

研究成果: Article査読

3 被引用数 (Scopus)


We designed a segmented undulator composed of four units of an APPLE undulator, such as an APPLE-II, and three phase-shifters. By simulating the optical performance in a 1-nm-rad emittance ring of synchrotron radiation, the novel undulator generates various polarized light that have high flux, high polarization, and fast-switching with a marginal perturbation to an electron beam in the storage ring. Varieties of polarization combinations in undulator segments allow for novel research, such as experiments using orbital angular momentum in X-ray photons. Furthermore, they provide a high flux third harmonic beam for both linear and circular polarizations, extending the photon energy range significantly at a beamline. The high degree of freedom in polarization controls of the segmented undulator provides opportunities for new experiments with low-emittance synchrotron radiation or X-ray free electron lasers.

ジャーナルe-Journal of Surface Science and Nanotechnology
出版ステータスPublished - 2019 4月 27

ASJC Scopus subject areas

  • バイオテクノロジー
  • バイオエンジニアリング
  • 凝縮系物理学
  • 材料力学
  • 表面および界面
  • 表面、皮膜および薄膜


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