FinEstBeaMS - A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory - UTU Research Portal

A1 Refereed original research article in a scientific journal

FinEstBeaMS - A wide-range Finnish-Estonian Beamline for Materials Science at the 1.5 GeV storage ring at the MAX IV Laboratory

Authors: Pärna R, Sankari R, Kukk E, Nõmmiste E, Valden M, Lastusaari M, Kooser K, Kokko K, Hirsimäki M, Urpelainen S, Turunen P, Kivimäki A, Pankratov V, Reisberg L, Hennies F, Tarawneh H, Nyholm R, Huttula M

Publisher: ELSEVIER SCIENCE BV

Publication year: 2017

Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Journal name in source: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Journal acronym: NUCL INSTRUM METH A

Volume: 859

First page : 83

Last page: 89

Number of pages: 7

ISSN: 0168-9002

eISSN: 1872-9576

DOI: https://doi.org/10.1016/j.nima.2017.04.002

Abstract

The FinEstBeaMS beamline is under construction at the 1.5 GeV storage ring of the MAX IV Laboratory at Lund, Sweden. It has been designed to cover an unusually wide energy range from ultraviolet (4.3 eV) to soft X-rays (1000 eV) but experiments will also be possible at the Mg and Al K alpha energies. Instead of having two different insertion devices and optical schemes for low and high photon energy regions, we have based our design on a single long-period, elliptically polarizing undulator and a plane grating monochromator. This solution will provide very good conditions for planned experiments in the whole photon energy region. The beamline will have two branches: one will mainly be used to investigate free atoms, molecules and clusters with photoelectron/photoion coincidence spectroscopy as well as solids with photoluminescence spectroscopy whereas the other one will be dedicated to ultra-high vacuum studies of surfaces and interfaces, utilizing X-ray photoelectron spectroscopy and X-ray absorption spectroscopy. This paper focuses on the optical design of the beamline and general design concepts of the gas phase and solid state end stations.