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Soft x-ray undulator beam line 1411 at MAX-II for gases, liquids and solid samples

  • M. Bässler*
  • , J. O. Forsell
  • , O. Björneholm
  • , R. Feifel
  • , M. Jurvansuu
  • , S. Aksela
  • , S. Sundin
  • , S. L. Sorensen
  • , R. Nyholm
  • , A. Ausmees
  • , S. Svensson
  • *Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We report on the build-up of the new undulator beam line 1411 at the third-generation synchrotron radiation facility MAX II in Lund, Sweden. This beam line is based on an upgraded version of the modified SX700-monochromator and the end station which were installed previously at beam line 51 at MAX I. The end station is equipped with a rotatable Scienta hemispherical electron-analyser making angle-resolved high resolution electron spectroscopy possible for various kinds of samples. The beam line performance will be considerably improved on MAX II due to a new undulator and the superior light source properties, e.g. the small vertical electron beam size. Undulator spectra have been measured and estimates of the photon flux at the experiment and the expected energy resolution are presented. The parameters for a new refocusing mirror were defined by ray tracing using the beam waist of the undulator. The beam line length was extended by 1 m to offer additional space for exchangeable experimental chambers.

Original languageEnglish
Pages (from-to)953-957
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume101-103
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

Funding

We are very grateful to all the staff of the MAX laboratory. Helpful discussions with Dr. B. Niemann, Göttingen, Dr. R. Denecke, MAX lab, Dr. M. Weiss, Bessy, and other staff members from Bessy are gratefully acknowledged. Thanks also to Doc. S. Södergren from Uppsala for practical help and Dr. A. Kivimäki and Prof. Doc. A. Naves de Brito for support and for sharing experiences from BL 51. This work has been supported financially by the Swedish Natural Science Research Council (NFR), the Knut and Alice Wallenberg foundation (KWA) and the Finnish Academy for the Natural Sciences.

Keywords

  • Electron spectroscopy
  • Soft X-rays
  • Synchrotron
  • Undulator beam line

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