In-vacuum X-ray helical undulator for high flux beamline at SPring-8

  • Hara T
  • Tanaka T
  • Seike T
 et al. 
  • 2

    Readers

    Mendeley users who have this article in their library.
  • 24

    Citations

    Citations of this article.

Abstract

An in-vacuum X-ray helical undulator has been developed for a high flux beamline (BL40XU) of SPring-8. Since BL40XU is not equipped with a monochromator in order to provide high photon flux, on-axis fundamental radiation from the helical undulator is directly used for user experiments after being focused by horizontal and vertical mirrors. The energy resolution available at the beamline is determined by the undulator spectrum and the front end physical aperture. Compared to a conventional beamline of SPring-8 with a crystal monochromator, the available photon flux is higher by two orders. Since a specific polarization state is not requested from the user experiments, there is no phasing mechanics on the undulator. The magnet structure is newly designed to obtain better magnetic field performance. The measured spectral bandwidth shows a good agreement with the expected one. © 2001 Elsevier Science B.V. All rights reserved.

Author-supplied keywords

  • Helical undulator
  • In-vacuum helical undulator
  • In-vacuum undulator
  • Insertion device
  • Undulator

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • T. Hara

  • T. Tanaka

  • T. Seike

  • T. Bizen

  • X. Maréchal

  • T. Kohda

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free