Beam line I411 at MAX II - Performance and first results

M. Bässler, A. Ausmees, M. Jurvansuu, R. Feifel, J. O. Forsell, P. De Tarso Fonseca, A. Kivimäki, S. Sundin, Stacey Ristinmaa Sörensen, R. Nyholm, O. Björneholm, S. Aksela, S. Svensson

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the characteristics and first results from the soft X-ray beam line I411, based on an undulator at the third generation synchrotron facility MAX II, Sweden. The beam line is designed for high-resolution, angle-resolved electron spectroscopy on gases, liquids and solids. Main components are the modified SX700 monochromator and the end station, both of which were previously used at beam line 51 at MAX I. The end station is equipped with a rotatable SES-200 hemispherical electron-analyser. Before the end station, a one-metre section is reserved for exchangeable experimental set-ups. The usable photon energy range is 50-1500 eV and the photon flux is two orders of magnitudes higher compared to beam line 51. At 400 eV a resolving power of about 5700 in the first order of the monochromator grating could be obtained. In gas phase, a total electron energy resolution of 16 meV has been achieved. Detailed results on the undulator performance, flux, photon and electron energy resolution as well as some technical details are presented here. As an example of the capabilities of the beam line I411, we present the fully vibrationally resolved Auger resonant Raman electron spectrum of gas-phase N 2.

Original languageEnglish
Pages (from-to)382-393
Number of pages12
JournalNuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volume469
Issue number3
DOIs
Publication statusPublished - 2001 Aug 21

Subject classification (UKÄ)

  • Accelerator Physics and Instrumentation

Free keywords

  • Beamline
  • Electron spectroscopy
  • Synchrotron radiation

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